Seagate ST3250820ACE User Manual

DB35.3 Series PATA

ST3750840ACE

ST3500830ACE

ST3400820ACE

ST3320820ACE

ST3300820ACE

ST3250820ACE

DB35.3 Series PATA

ST3750840ACE

ST3500830ACE

ST3400820ACE

ST3320820ACE

ST3300820ACE

ST3250820ACE

Publication number: 100427568, Rev. C

August 2006

Seagate and Seagate Technology are registered trademarks of Seagate Technology LLC.

SeaTools, SeaFONE, SeaBOARD, SeaTDD, and the Wave logo are either registered trade-

marks or trademarks of Seagate Technology LLC. Other product names are registered trade-

marks or trademarks of their owners.

Seagate reserves the right to change, without notice, product offerings or specifications. No

part of this publication may be reproduced in any form without written permission of Seagate

Technology LLC.

Contents

1.0

2.0

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Drive specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.1

2.2

Specification summary table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Formatted capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.2.1

LBA mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Default logical geometry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Recording and interface technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Seek time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Start/stop times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Power specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Conducted noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Voltage tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Power-management mode s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 3

2.9

Environmental specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Ambient temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Temperature gradient. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Altitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Shock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Vibratio n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 5

Acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Electromagnetic immunity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Agency certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.13.1

2.13.2

2.13.3

Safety certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Electromagnetic compatibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

FCC verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.14

2.15

Environmental protectio n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 9

2.14.1 European Union Restriction of Hazardous Substances (RoHS) . . . . . . . . . . . . 19

Corrosive environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.0

Configuring and mounting the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.1

3.2

3.3

Handling and static discharge precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Breather filter hole precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Jumper settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.3.1

3.3.2

3.3.3

Master/slave configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Cable-select option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Ultra ATA/100 cabl e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 4

3.4

Drive mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

4.0

5.0

ATA interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

4.1 ATA interface signals and connector pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Supported ATA commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Identify Device command. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Set Features command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

S.M.A.R.T. command s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 4

Seagate Technology support service s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 5

DB35.3 Series PATA Product Manual, Rev. C

iii

DB35.3 Series PATA Product Manual, Rev. C

List of Figures

Figure 7.

Typical 5V startup and operation current profil e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2

Typical 12V startup and operation current profil e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2

Breather filter hole locatio n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2

Master/slave jumper settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Ultra ATA cable connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Mounting dimensions—top, side and end view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

I/O pins and supported ATA signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

DB35.3 Series PATA Product Manual, Rev. C

1.0

Introduction

This manual describes the functional, mechanical and interface specifications for the following Seagate^®

DB35.3 Series PATA model drives:

ST3750840ACE

ST3500830ACE

ST3400820ACE

ST3320820ACE

ST3300820ACE

ST3250820ACE

These drives provide the following key features:

• 7,200-RPM spindle speed.

• High instantaneous (burst) data transfer rates (up to 100 Mbytes per second) using Ultra DMA mode 5.

• Perpendicular recording technology. Tunneling Giant magnetoresistive (TGMR) recording heads and

Enhanced Partial Response-Maximum Likelihood (EPRML) technology, which provide the drives with

increased areal density.

• State-of-the-art cache and on-the-fly error-correction algorithms.

• Full-track multiple-sector transfer capability without local processor intervention.

• Quiet operation.

• SeaTools diagnostic software performs a drive self-test that eliminates unnecessary drive returns.

• Support for S.M.A.R.T. drive monitoring and reporting.

• Support for Read Multiple and Write Multiple commands.

• Support for autodetection of master/slave drives that use cable select (CSEL).

DB35.3 Series PATA Product Manual, Rev. C

2.0

Drive specifications

Unless otherwise noted, all specifications are measured under ambient conditions, at 25°C, and nominal

power. For convenience, the phrases the drive and this drive are used throughout this manual to indicate the

following drive models:

ST3750840ACE

ST3500830ACE

ST3400820ACE

ST3320820ACE

ST3300820ACE

ST3250820ACE

2.1

Specification summary table

The specifications listed in the table below are for quick reference. For details on specification measurement or

definition, see the appropriate section of this manual.

DB35.3 Series PATA Product Manual, Rev. C

Table 1:

Drive specifications summary for 750, 500, and 400 Gbyte models

Drive specification

ST3750840ACE

750

ST3500830ACE

500

ST3400820ACE

400

Formatted Gbytes (512 bytes/sector)*

Guaranteed sectors

1,465,149,168

512

976,773,168

781,422,768

Bytes per sector

Default sectors per track

Default read/write heads

Default cylinders

16,383

Recording density, max

Track density, max

926 kbits/in

145 ktracks/in

128.2 Gbits/in²

7,200 RPM

1,030 Mbits/sec

78 Mbytes/sec

100 Mbytes/sec

813 kbits/in

781 kbits/in

Areal density, max

114.4 Gbits/in²

128.2 Gbits/in²

Spindle speed

Internal data transfer rate, max

Sustained data transfer rate, max

I/O data-transfer rate, max

ATA data-transfer modes supported

72 Mbytes/sec

PIO modes 0–4

Multiword DMA modes 0–2

Ultra DMA modes 0–5

Cache buffer

8 Mbytes

Height, max

26.1 mm (1.028 inches)

Width, max

101.6 mm (4.000 inches) +/- 0.010 inches

146.99 mm (5.787 inches)

Length, max

Weight, typical

720 grams

4.16 msec

16 sec

635 grams

Average latency

Power-on to ready, max

Standby to ready, max

Track-to-track seek time, typical

Average seek, read, typical

Average seek, write, typical

Startup current (max) 12V (peak)

Voltage tolerance (including noise)

16 sec

<0.8 msec read; <1.0 msec write

<11.0 msec

<12.0 msec

2.0 amps

5V ± 5%

12V ± 10%

Ambient temperature

operating

0° to 60°C

–40° to 70°C

0° to 62°C

–40° to 70°C

nonoperating

Temperature gradient, per hour max

20°C (operating)

30°C (nonoperating)

Relative humidity

5% to 90% (operating)

5% to 95% (nonoperating)

Relative humidity gradient, per hour max

Wet bulb temperature, max

30%

37.7°C (operating)

37.7°C (nonoperating)

Altitude, operating

–60.96 m to 3,048 m

(–200 ft. to 10,000+ ft.)

Altitude, nonoperating, max

–60.96 m to 12,192 m below mean sea level

(–200 ft. to 40,000+ ft below mean sea level.)

Operational Shock, max

Non-Operational Shock, max

Vibration, operating

63 Gs at 2 msec

300 Gs at 2 msec

5–22 Hz: 0.25 Gs, Limited displacement

22–350 Hz: 0.50 Gs

350–500 Hz:: 0.25 Gs

DB35.3 Series PATA Product Manual, Rev. C

Drive specification

ST3750840ACE

ST3500830ACE

ST3400820ACE

Vibration, nonoperating

5–22 Hz: 0.25 Gs, Limited displacement

22–350 Hz: 5.0 Gs

350–500 Hz:: 1.0 Gs

Drive acoustics, sound power

Idle**

2.8 bels (typical)

3.0 bels (max)

2.7 bels (typical)

2.9 bels (max)

CE seek profile

2.9 (typical)

3.0 (max)

2.8 (typical)

2.9 (max)

Nonrecoverable read errors

Annualized Failure Rate (AFR)

Warranty

1 per 10¹⁴bits read

0.68%

5 years on distribution units.

To determine the warranty for a specific drive, use a web browser to

access the following web page:

www.seagate.com/support/service/

From this page, click on the “Verify Your Warranty” link. You will be asked

to provide the drive serial number, model number (or part number) and

country of purchase. The system will display the warranty information for

your drive.

Contact start-stop cycles (25°C, 50% rel. humidity)

50,000

*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment

and formatting.

**During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and

power to operational levels.

DB35.3 Series PATA Product Manual, Rev. C

Table 2:

Drive specifications summary for 320, 300, and 250 Gbyte models

Drive specification

ST3320820ACE

320

ST3300820ACE

300

ST3250820ACE

250

Formatted Gbytes (512 bytes/sector)*

Guaranteed sectors

625,142,448

512

586,072,368

488,397,168

Bytes per sector

Default sectors per track

Default read/write heads

Default cylinders

16,383

Recording density, max

Track density, max

781 kbits/in

145 ktracks/in

114.4 Gbits/in²

7,200 RPM

1,030 Mbits/sec

72 Mbytes/sec

100 Mbytes/sec

813 kbits/in

Areal density, max

Spindle speed

Internal data transfer rate, max

Sustained data transfer rate, max

I/O data-transfer rate, max

ATA data-transfer modes supported

PIO modes 0–4

Multiword DMA modes 0–2

Ultra DMA modes 0–5

Cache buffer

8 Mbytes

Height, max

26.1 mm (1.028 inches)

Width, max

101.6 mm (4.000 inches) +/- 0.010 inches

Length, max

146.99 mm (5.787 inches)

Weight, typical

580 grams

Average latency

4.16 msec

Power-on to ready, max

Standby to ready, max

Track-to-track seek time, typical

Average seek, read, typical

Average seek, write, typical

Startup current (typical) 12V (peak)

Voltage tolerance (including noise)

16 sec

<0.8 msec (read), <1.0 msec (write)

<11.0 msec

<12.0 msec

2.0 amps

5V ± 5%

12V ± 10%

Ambient temperature

operating

0° to 65°C

nonoperating

–40° to 70°C

Temperature gradient, max

20°C per hour (operating)

30°C per hour (nonoperating)

Relative humidity

5% to 90% (operating)

5% to 95% (nonoperating)

Relative humidity gradient, per hour max

Wet bulb temperature, max

30%

37.7°C (operating)

37.7°C (nonoperating)

Altitude, operating

–60.96 m to 3,048 m

(–200 ft. to 10,000+ ft.)

Altitude, nonoperating, max

–60.96 m to 12,192 m below mean sea level

(–200 ft. to 40,000+ ft. below mean sea level

Operational Shock, max

Non-Operational Shock, max

Vibration, operating

63 Gs at 2 msec

300 Gs at 2 msec

5–22 Hz: 0.25 Gs, Limited displacement

22–350 Hz: 0.50 Gs

350–500 Hz:: 0.25 Gs

DB35.3 Series PATA Product Manual, Rev. C

Drive specification

ST3320820ACE

ST3300820ACE

ST3250820ACE

Vibration, nonoperating

5–22 Hz: 0.25 Gs, Limited displacement

22–350 Hz: 5.0 Gs

350–500 Hz:: 1.0 Gs

Drive acoustics, sound power

Idle**

2.7 bels (typical)

2.9 bels (max)

2.5 bels (typical)

2.7 bels (max)

CE seek profile

2.8 bels (typical)

2.9 bels (max)

2.7 bels (typical)

2.8 bels (max)

Nonrecoverable read errors

Annualized Failure Rate (AFR)***

Warranty

1 per 10¹⁴bits read

0.68%

5 years on distribution units.

To determine the warranty for a specific drive, use a web browser to access the

following web page:

www.seagate.com/support/service/

From this page, click on the “Verify Your Warranty” link. You will be asked to

provide the drive serial number, model number (or part number) and country of

purchase. The system will display the warranty information for your drive.

Contact start-stop cycles (25°C, 50% rel. humidity)

50,000

*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment

and formatting.

**During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and

power to operational levels.

DB35.3 Series PATA Product Manual, Rev. C

2.2

Formatted capacity

Formatted

capacity*

Guaranteed

sectors

Model

Bytes per sector

ST3750840ACE

ST3500830ACE

ST3400820ACE

ST3320820ACE

ST3300820ACE

ST3250820ACE

750 Gbytes

500 Gbytes

400 Gbytes

320 Gbytes

300 Gbytes

250 Gbytes

1,465,149,168

976,773,168

781,422,768

625,142,448

586,072,368

488,397,168

512

*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environ-

ment and formatting.

2.2.1

LBA mode

When addressing these drives in LBA mode, all blocks (sectors) are consecutively numbered from 0 to n–1,

where n is the number of guaranteed sectors as defined above.

See Section 4.1.2, "Identify Device command" (words 60-61 and 100-103) for additional information about 48-

bit addressing support of drives with capacities over 137 Gbytes.

2.3

Default logical geometry

Cylinders

16,383

Read/write heads

Sectors per track

DB35.3 Series PATA Product Manual, Rev. C

2.4

Recording and interface technology

750GB

500GB

400GB

320GB

300GB

250GB

Interface

ATA

Recording method

Perpendicular

Recording density, KBPI (kbits/inch max)

Track density, KTPI (ktracks/inch avg)

926

813

781

813

145

Areal density (Gbits/inch avg)

128.2

7,200

1,030

114.4

Spindle speed (RPM) (± 0.2%)

Internal data transfer rate (Mbits/sec max)

Sustained data transfer rate (Mbytes/sec max)

I/O data-transfer rate (Mbytes/sec max)

100 (Ultra DMA mode 5)

2.5

Physical characteristics

Drive specification

Maximum height

Maximum width

Maximum length

Typical weight

(mm)

(inches)

26.1

1.028

(mm)

(inches)

101.6

4.000 +/- 0.010

(mm)

(inches)

146.99

5.787

ST3320820ACE, ST3300820ACE and ST3250820ACE

ST3500830ACE and ST3400820ACE

ST3750840ACE

580 grams (1.28 lbs)

635 grams (1.40 lbs)

720 grams (1.59 lbs)

Cache Size

8 Mbytes

DB35.3 Series PATA Product Manual, Rev. C

2.6

Seek time

Seek measurements are taken with nominal power at 25°C ambient temperature. All times are measured using

drive diagnostics. The specifications in the table below are defined as follows:

• Track-to-track seek time is an average of all possible single-track seeks in both directions.

• Average seek time is a true statistical random average of at least 5,000 measurements of seeks between

random tracks, less overhead.

Typical seek times (msec)

Track-to-track

Read

<0.8

Write

<1.0

Average

<11.0

4.16

<12.0

4.16

Average latency

Note. These drives are designed to consistently meet the seek times represented in this manual. Physical seeks,

regardless of mode (such as track-to-track and average), are expected to meet or exceed the noted values.

However, due to the manner in which these drives are formatted, benchmark tests that include command

overhead or measure logical seeks may produce results that vary from these specifications.

2.7

Start/stop times

Power-on to Ready (sec)

16 (max)

10 (max)

Standby to Ready (sec)

Ready to spindle stop (sec)

2.8

Power specifications

The drive receives DC power (+5V or +12V) through a four-pin standard drive power connector.

2.8.1 Power consumption

Power requirements for the drives are listed in the table on page 11. Typical power measurements are based

on an average of drives tested, under nominal conditions, using +5.0V and +12.0V input voltage at 25°C ambi-

ent temperature.

• Spinup power

Spinup power is measured from the time of power-on to the time that the drive spindle reaches operating speed.

• Seek mode

During seek mode, the read/write actuator arm moves toward a specific position on the disc surface and does

not execute a read or write operation. Servo electronics are active. Seek mode power represents the worst-

case power consumption, using only random seeks with read or write latency time. This mode is not typical

and is provided for worst-case information.

• Read/write power and current

Read/write power is measured with the heads on track, based on a 16-sector write followed by a 32-msec

delay, then a 16-sector read followed by a 32-msec delay.

• Operating power and current

Operating power is measured using 40 percent random seeks, 40 percent read/write mode (1 write for each

10 reads) and 20 percent drive idle mode.

• Idle mode power

DB35.3 Series PATA Product Manual, Rev. C

Idle mode power is measured with the drive up to speed, with servo electronics active and with the heads in

a random track location.

• Standby mode

During Standby mode, the drive accepts commands, but the drive is not spinning, and the servo and read/

write electronics are in power-down mode.

Table 3:

DC power requirements

Power dissipation using consumer

storage profile (ST3750840ACE values

shown)

Average

(watts, 25° C)

Average

5V typ amps

Average

12V typ amps

Spinup

—

2.0 (peak)

0.540

Idle*

9.30

10.40

8.20

0.80

0.611

0.719

0.425

0.106

Idle with offline activity

Operating (CE seeks)

Standby

0.567

0.510

0.023

Sleep

0.023

*During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and

power to operational levels.

DB35.3 Series PATA Product Manual, Rev. C

2.8.1.1

Typical current profile

Figure 1

Typical 5V startup and operation current profile

Figure 2

2.8.2

Typical 12V startup and operation current profile

Conducted noise

Input noise ripple is measured at the host system power supply across an equivalent 80-ohm resistive load on

the +12 volt line or an equivalent 15-ohm resistive load on the +5 volt line.

• Using 12-volt power, the drive is expected to operate with a maximum of 120 mV peak-to-peak square-wave

injected noise at up to 10 MHz.

• Using 5-volt power, the drive is expected to operate with a maximum of 100 mV peak-to-peak square-wave

injected noise at up to 10 MHz.

Note. Equivalent resistance is calculated by dividing the nominal voltage by the typical RMS read/write

current.

DB35.3 Series PATA Product Manual, Rev. C

2.8.3

Voltage tolerance

Voltage tolerance (including noise):

5V ± 5%

12V ± 10%

2.8.4

Power-management modes

The drive provides programmable power management to provide greater energy efficiency. In most systems,

you can control power management through the system setup program. The drive features the following

power-management modes:

Power mode

Active

Heads

Spindle

Rotating

Stopped

Buffer

Tracking

Parked

Enabled

Disabled

Idle

Standby

Sleep

• Active mode

The drive is in Active mode during the read/write and seek operations.

• Idle mode

The buffer remains enabled, and the drive accepts all commands and returns to Active mode any time disc

access is necessary.

• Standby mode

The drive enters Standby mode when the host sends a Standby Immediate command. If the host has set the

standby timer, the drive can also enter Standby mode automatically after the drive has been inactive for a

specifiable length of time. The standby timer delay is established using a Standby or Idle command. In Standby

mode, the drive buffer is enabled, the heads are parked and the spindle is at rest. The drive accepts all

commands and returns to Active mode any time disc access is necessary.

• Sleep mode

The drive enters Sleep mode after receiving a Sleep command from the host. In Sleep mode, the drive buffer

is disabled, the heads are parked and the spindle is at rest. The drive leaves Sleep mode after it receives a

Hard Reset or Soft Reset from the host. After receiving a reset, the drive exits Sleep mode and enters Standby

mode with all current translation parameters intact.

• Idle and Standby timers

Each time the drive performs an Active function (read, write or seek), the standby timer is reinitialized and

begins counting down from its specified delay times to zero. If the standby timer reaches zero before any drive

activity is required, the drive makes a transition to Standby mode. In both Idle and Standby mode, the drive

accepts all commands and returns to Active mode when disc access is necessary.

DB35.3 Series PATA Product Manual, Rev. C

2.9

Environmental specifications

Ambient temperature

2.9.1

Ambient temperature is defined as the temperature of the environment immediately surrounding the drive.

Actual drive case temperature should not exceed 75°C (167°F) within the operating ambient conditions. Rec-

ommended measurement locations are shown in Figure 6 on page 25.

Above 1,000 feet (305 meters), the maximum temperature is derated linearly to 112°F (44°C) at 10,000 feet

(3,048 meters).

Operating

ST3320820ACE, ST3300820ACE and ST3250820ACE

ST3500830ACE and ST3400820ACE

ST3750840ACE

0° to 65°C (32° to 149°F)

0° to 62°C (32° to 143.6°F)

0° to 60°C (32° to 140°F)

Nonoperating

–40° to 70°C (–40° to 158°F)

2.9.2

Temperature gradient

Operating

Nonoperating

20°C per hour (68°F per hour max), without condensation

30°C per hour (86°F per hour max)

2.9.3

2.9.3.1

Humidity

Relative humidity

Operating

Nonoperating

5% to 90% noncondensing (30% per hour max)

5% to 95% noncondensing (30% per hour max)

2.9.3.2

Wet bulb temperature

Operating

37.7°C (99.9°F max)

Nonoperating

2.9.4

Altitude

Operating

–60.96 m to 3,048 m (–200 ft. to 10,000+ ft.)

–60.96 m to 12,192 m (–200 ft. to 40,000+ ft.)

Nonoperating

DB35.3 Series PATA Product Manual, Rev. C

2.9.5

Shock

All shock specifications assume that the drive is mounted securely with the input shock applied at the drive

mounting screws. Shock may be applied in the X, Y or Z axis.

2.9.5.1

Operating shock

These drives comply with the performance levels specified in this document when subjected to a maximum

operating shock of 63 Gs based on half-sine shock pulses of 2 msec. Shocks should not be repeated more

than two times per second.

2.9.5.2

Nonoperating shock

2 Disc models

The nonoperating shock level that the drive can experience without incurring physical damage or degradation

in performance when subsequently put into operation is 350 Gs based on a nonrepetitive half-sine shock pulse

of 2 msec duration.

3 and 4 Disc models

The nonoperating shock level that the drive can experience without incurring physical damage or degradation

in performance when subsequently put into operation is 300 Gs based on a nonrepetitive half-sine shock pulse

of 2 msec duration.

2.9.6

Vibration

All vibration specifications assume that the drive is mounted securely with the input vibration applied at the

drive mounting screws. Vibration may be applied in the X, Y or Z axis.

2.9.6.1

Operating vibration

The following table lists the maximum vibration levels that the drive may experience while meeting the perfor-

mance standards specified in this document.

5–22 Hz

0.25 Gs (Limited displacement)

22–350 Hz

350–500 Hz

0.50 Gs

0.25 Gs

2.9.6.2

Nonoperating vibration

The following table lists the maximum nonoperating vibration that the drive may experience without incurring

physical damage or degradation in performance when subsequently put into operation.

5–22 Hz

0.25 Gs (limited displacement)

22–350 Hz

350–500 Hz

5.0 Gs

1.0 Gs

DB35.3 Series PATA Product Manual, Rev. C

2.10

Acoustics

Drive acoustics are measured as overall A-weighted acoustic sound power levels (no pure tones). All mea-

surements are consistent with ISO document 7779. Sound power measurements are taken under essentially

free-field conditions over a reflecting plane. For all tests, the drive is oriented with the cover facing upward.

Note. For seek mode tests, the drive is placed in seek mode only. The number of seeks per second is defined

by the following equation:

(Number of seeks per second = 0.4 / (average latency + average access time)

Table 4:

Fluid Dynamic Bearing (FDB) motor acoustics

Idle*

CE seek profile

ST3750840ACE

ST3500830ACE

ST3400820ACE

ST3320820ACE

ST3300820ACE

ST3250820ACE

2.8 bels (typ)

3.0 bels (max)

2.9 bels (typ)

3.0 bels (max)

2.8 bels (typ)

3.0 bels (max)

2.9 bels (typ)

3.0 bels (max)

2.7 bels (typ)

2.9 bels (max)

2.8 bels (typ)

2.9 bels (max)

2.7 bels (typ)

2.9 bels (max)

2.8 bels (typ)

2.9 bels (max)

2.5 bels (typ)

2.7 bels (max)

2.7 bels (typ)

2.8 bels (max)

2.5 bels (typ)

2.7 bels (max)

2.7 bels (typ)

2.8 bels (max)

*During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and

power to operational levels.

DB35.3 Series PATA Product Manual, Rev. C

2.11

Electromagnetic immunity

When properly installed in a representative host system, the drive operates without errors or degradation in

performance when subjected to the radio frequency (RF) environments defined in the following table:

Table 5:

Radio frequency environments

Performance

level

Reference

standard

Test

Description

Electrostatic discharge

Radiated RF immunity

Contact, HCP, VCP: ± 4 kV; Air:

± 8 kV

EN 61000-4-2: 95

80 to 1,000 MHz, 3 V/m,

80% AM with 1 kHz sine

900 MHz, 3 V/m, 50% pulse

modulation @ 200 Hz

EN 61000-4-3: 96

ENV 50204: 95

Electrical fast transient

Surge immunity

± 1 kV on AC mains, ± 0.5 kV on

external I/O

EN 61000-4-4: 95

EN 61000-4-5: 95

EN 61000-4-6: 97

EN 61000-4-11: 94

± 1 kV differential, ± 2 kV com-

mon, AC mains

Conducted RF immunity

Voltage dips, interrupts

150 kHz to 80 MHz, 3 Vrms,

80% AM with 1 kHz sine

0% open, 5 seconds

0% short, 5 seconds

40%, 0.10 seconds

70%, 0.01 seconds

2.12

Reliability

Nonrecoverable read errors

Annualized Failure Rate (AFR)

Contact start-stop cycles

1 per 10 bits read, max.

0.68% (nominal power, 25°C ambient temperature)

50,000 cycles

(at nominal voltage and temperature, with 60 cycles per hour and a 50% duty cycle)

Warranty

5 years on distribution units.

To determine the warranty for a specific drive, use a web browser to access the fol-

lowing web page:

www.seagate.com/support/service/

From this page, click on the “Verify Your Warranty” link. You will be asked to provide

the drive serial number, model number (or part number) and country of purchase.

The system will display the warranty information for your drive.

Preventive maintenance

None required.

2.13

Agency certification

2.13.1

Safety certification

The drives are recognized in accordance with UL 1950 and CSA C22.2 (950) and meet all applicable sections

of IEC950 and EN 60950 as tested by TUV North America.

DB35.3 Series PATA Product Manual, Rev. C

2.13.2

Electromagnetic compatibility

Hard drives that display the CE mark comply with the European Union (EU) requirements specified in the Elec-

tromagnetic Compatibility Directive (89/336/EEC). Testing is performed to the levels specified by the product

standards for Information Technology Equipment (ITE). Emission levels are defined by EN 55022, Class B and

the immunity levels are defined by EN 55024.

Seagate uses an independent laboratory to confirm compliance with the EC directives specified in the previous

paragraph. Drives are tested in representative end-user systems. Although CE-marked Seagate drives comply

with the directives when used in the test systems, we cannot guarantee that all systems will comply with the

directives. The drive is designed for operation inside a properly designed enclosure, with properly shielded I/O

cable (if necessary) and terminators on all unused I/O ports. Computer manufacturers and system integrators

should confirm EMC compliance and provide CE marking for their products.

Korean RRL

If these drives have the Korea Ministry of Information and Communication (MIC) logo, they comply with para-

graph 1 of Article 11 of the Electromagnetic Compatibility control Regulation and meet the Electromagnetic

Compatibility (EMC) Framework requirements of the Radio Research Laboratory (RRL) Ministry of Information

and Communication Republic of Korea.

These drives have been tested and comply with the Electromagnetic Interference/Electromagnetic Susceptibil-

ity (EMI/EMS) for Class B products. Drives are tested in a representative, end-user system by a Korean-recog-

nized lab.

• EUT name (model numbers): DB35 Series

• Certificate number: STX-L3510 (B)

• Trade name or applicant: Seagate Technology

• Manufacturing date: March 2006

• Manufacturer/nationality: Singapore and China

Australian C-Tick (N176)

If these models have the C-Tick marking, they comply with the Australia/New Zealand Standard AS/NZS3548

1995 and meet the Electromagnetic Compatibility (EMC) Framework requirements of the Australian Communi-

cation Authority (ACA).

2.13.3

FCC verification

These drives are intended to be contained solely within a personal computer or similar enclosure (not attached

as an external device). As such, each drive is considered to be a subassembly even when it is individually mar-

keted to the customer. As a subassembly, no Federal Communications Commission verification or certification

of the device is required.

Seagate Technology LLC has tested this device in enclosures as described above to ensure that the total

assembly (enclosure, disc drive, motherboard, power supply, etc.) does comply with the limits for a Class B

computing device, pursuant to Subpart J, Part 15 of the FCC rules. Operation with noncertified assemblies is

likely to result in interference to radio and television reception.

Radio and television interference. This equipment generates and uses radio frequency energy and if not

installed and used in strict accordance with the manufacturer’s instructions, may cause interference to radio

and television reception.

This equipment is designed to provide reasonable protection against such interference in a residential installa-

tion. However, there is no guarantee that interference will not occur in a particular installation. If this equipment

does cause interference to radio or television, which can be determined by turning the equipment on and off,

you are encouraged to try one or more of the following corrective measures:

• Reorient the receiving antenna.

DB35.3 Series PATA Product Manual, Rev. C

• Move the device to one side or the other of the radio or TV.

• Move the device farther away from the radio or TV.

• Plug the computer into a different outlet so that the receiver and computer are on different branch outlets.

If necessary, you should consult your dealer or an experienced radio/television technician for additional sug-

gestions. You may find helpful the following booklet prepared by the Federal Communications Commission:

How to Identify and Resolve Radio-Television Interference Problems. This booklet is available from the Super-

intendent of Documents, U.S. Government Printing Office, Washington, DC 20402. Refer to publication num-

ber 004-000-00345-4.

2.14

Environmental protection

Seagate designs its products to meet environmental protection requirements worldwide, including regulations

restricting certain chemical substances.

2.14.1

European Union Restriction of Hazardous Substances (RoHS)

The European Union Restriction of Hazardous Substances (RoHS) Directive restricts the presence of chemical

substances, including Lead (Pb), in electronic products effective July 2006. Although amendments to the

Euro-pean Union’s Restriction of Hazardous Substances (RoHS) Directive have not been finalized, to the best

of our knowledge the disc drives documented in this publication will comply with the final RoHS Directive

require-ments.

A number of parts and materials in Seagate products are procured from external suppliers. We rely on the

rep-resentations of our suppliers regarding the presence of RoHS substances in these parts and materials. Our

supplier contracts require compliance with our chemical substance restrictions, and our suppliers document

their compliance with our requirements by providing material content declarations for all parts and materials for

the disc drives documented in this publication. Current supplier declarations include disclosure of the inclusion

of any RoHS-regulated substance in such parts or materials.

Seagate also has internal systems in place to ensure ongoing compliance with the RoHS Directive and all laws

and regulations which restrict chemical content in electronic products. These systems include standard

operat-ing procedures that ensure that restricted substances are not utilized in our manufacturing operations,

labora-tory analytical validation testing, and an internal auditing process to ensure that all standard operating

procedures are complied with.

2.15

Corrosive environment

Seagate electronic drive components pass accelerated corrosion testing equivalent to 10 years exposure to

light industrial environments containing sulfurous gases, chlorine and nitric oxide, classes G and H per ASTM

B845. However, this accelerated testing cannot duplicate every potential application environment. Users

should use caution exposing any electronic components to uncontrolled chemical pollutants and corrosive

chemicals as electronic drive component reliability can be affected by the installation environment. The silver,

copper, nickel and gold films used in Seagate products are especially sensitive to the presence of sulfide, chlo-

ride, and nitrate contaminants. Sulfur is found to be the most damaging. In addition, electronic components

should never be exposed to condensing water on the surface of the printed circuit board assembly (PCBA) or

exposed to an ambient relative humidity greater than 95%. Materials used in cabinet fabrication, such as vulca-

nized rubber, that can outgas corrosive compounds should be minimized or eliminated. The useful life of any

electronic equipment may be extended by replacing materials near circuitry with sulfide-free alternatives.

DB35.3 Series PATA Product Manual, Rev. C

3.0

Configuring and mounting the drive

This section contains the specifications and instructions for configuring and mounting the drive.

3.1

Handling and static discharge precautions

After unpacking, and before installation, the drive may be exposed to potential handling and electrostatic dis-

charge (ESD) hazards. Observe the following standard handling and static-discharge precautions:

Caution:

• Before handling the drive, put on a grounded wrist strap, or ground yourself frequently by touching the metal

chassis of a computer that is plugged into a grounded outlet. Wear a grounded wrist strap throughout the

entire installation procedure.

• Handle the drive by its edges or frame only.

• The drive is extremely fragile—handle it with care. Do not press down on the drive top cover.

• Always rest the drive on a padded, antistatic surface until you mount it in the computer.

• Do not touch the connector pins or the printed circuit board.

• Do not remove the factory-installed labels from the drive or cover them with additional labels. Removal voids

the warranty. Some factory-installed labels contain information needed to service the drive. Other labels are

used to seal out dirt and contamination.

DB35.3 Series PATA Product Manual, Rev. C

3.2

Breather filter hole precautions

This section contains information regarding the precautions which should be taken regarding the breather filter

hole in Seagate hard disc drives. Proper precautions should be taken to ensure full functionality and prevent

possible damage to the drive.

Breather hole

Do not cover or seal

this hole.

Figure 3

Breather filter hole location

Caution: Do not cover, seal, or insert any object into this hole.

This hole has two purposes:

• To allow condensation inside the hard disc to escape

• To allow air pressure inside the hard disc to equalize with ambient pressure

Note. If this hole is covered, sealed, or penetrated by any object, the drive reliability may be compromised

and could lead to permanent damage. Covering or sealing this hole voids the warranty.

DB35.3 Series PATA Product Manual, Rev. C

3.3

Jumper settings

3.3.1

Master/slave configuration

The options jumper block shown in Figure 4 is used to configure the drive for operation. It is the 8-pin dual

header between the interface connector and the power connector. Use the following settings to configure the

drive as a master or a slave.

Master or single drive. The drive is configured at the factory for a master or single-drive operation with a

jumper set on pins 7 and 8.

Drive as slave. Remove all jumpers.

Drive as master with a non-ATA-compatible slave.

Use this jumper setting only if the drive does not work as a master with no jumpers installed.

Options jumper block

*Master or single drive

Drive is slave

Master with non ATA-

compatible slave

*Cable select

Figure 4

Master/slave jumper settings

3.3.2

Cable-select option

Computers that use cable select determine the master and slave drives by selecting or deselecting pin 28,

CSEL, on the interface bus. Master and slave drives are determined by their physical position on the cable. To

enable cable select, set a jumper on pins 5 and 6 as shown in Figure 4. Refer to your computer manual to

determine whether your computer supports this option.

DB35.3 Series PATA Product Manual, Rev. C

3.3.3

Ultra ATA/100 cable

An 80-conductor 40-pin cable is required to run Ultra DMA mode 3, mode 4, and mode 5. This cable uses

even-numbered conductors connected to the ground pins to improve signal integrity.

Note.

If you are using a 40-pin, 80-conductor

cable, attach the blue connector to the

motherboard, the black connector to the

master drive, and the gray connector

to the slave.

Master

Slave

Pin 1

Computer

Motherboard

Figure 5

Ultra ATA cable connectors

Note. The drive supports both host and drive cable detection. The host detects the 80-conductor cable by

sampling pin 34, CBLID–, on the interface bus. The drive detects the 80-conductor cable by sens-

ing a capacitor at the host side through the CBLID– signal. The result is reported in a Fast Rise

Detected bit (bit 13 of word 93 in the Identify drive parameter block).

3.4

Drive mounting

You can mount the drive in any orientation using four screws in the side-mounting holes or four screws in the

bottom-mounting holes. See Figure 6 for drive mounting dimensions. Follow these important mounting precau-

tions when mounting the drive:

• Allow a minimum clearance of 0.030 inches (0.76 mm) around the entire perimeter of the drive for cooling.

• Use only 6-32 UNC mounting screws.

• Do not overtighten the mounting screws (maximum torque: 6 inch-lb.).

• Do not use a drive interface cable that is more than 18 inches long.

DB35.3 Series PATA Product Manual, Rev. C

Notes:

1. Dimensions are shown in inches (mm).

2 Dimensions per SFF-8301 specification.

0.228

(5.79)

0.178

(4.27)

2.23

(56.56)

1.028 max

(26.11)

2.83

(71.80)

3 x 0.25 0.010

(6.35 0.037)

both sides

3.71

(94.35)

1.122 0.02

(28.5 0.51)

1.625 0.020

(41.28 0.51)

1.638 0.01

(41.61 0.25)

5.787 max

(146.99)

1.75 0.01

(44.45 0.25)

4.0 0.01

(101.60 0.25)

4 x 6-32 UNC-2B

0.150 (3.81) max. fastener

penetration. 3 threads

minimum engagement.

3 x 6-32 UNC-2B

0.1240 0.01

(3.18 0.25)

0.150 (3.81) max. fastener

penetration both sides. 3 threads

minimum engagement.

Recommended

case temperature

measurement location

case temperature

measurement location

3.750 0.01

(95.25 0.25)

4.0 0.01

(101.60 0.25)

Figure 6

Mounting dimensions—top, side and end view

DB35.3 Series PATA Product Manual, Rev. C

4.0

ATA interface

These drives use the industry-standard ATA task file interface that supports 16-bit data transfers. It supports

ATA programmed input/output (PIO) modes 0–4; multiword DMA modes 0–2, and Ultra DMA modes 0–5. The

drive also supports the use of the IORDY signal to provide reliable high-speed data transfers.

You can use a daisy-chain cable to connect two drives to a single AT host bus. For detailed information about

the ATA interface, refer to the draft of AT Attachment with Packet Interface Extension (ATA/ATAPI-7), NCITS

T13 1410D, subsequently referred to as the Draft ATA-7 Standard.

4.1

ATA interface signals and connector pins

Figure 7 on page 27 summarizes the signals on the ATA interface connector that the drive supports. For a

detailed description of these signals, refer to the Draft ATA-7 Standard.

Drive pin #

Host pin # and signal description

Signal name

–

Reset

Hardware Reset

Ground

DD7

Host Data Bus Bit 7

Host Data Bus Bit 8

Host Data Bus Bit 6

Host Data Bus Bit 9

Host Data Bus Bit 5

Host Data Bus Bit 10

Host Data Bus Bit 4

DD8

DD6

DD9

DD5

DD10

DD4

DD11

DD3

10 Host Data Bus Bit 11

11 Host Data Bus Bit 3

12 Host Data Bus Bit 12

13 Host Data Bus Bit 2

14 Host Data Bus Bit 13

15 Host Data Bus Bit 1

16 Host Data Bus Bit 14

17 Host Data Bus Bit 0

18 Device Data (15:0)

19 Ground

DD12

DD2

DD13

DD1

DD14

DD0

DD15

Ground

(removed)

DMARQ

Ground

DIOW–

STOP

Ground

(No Pin)

21 DMA Request

22 Ground

23 Device I/O Write:

Stop Ultra DMA Burst

24 Ground

DIOR

–

25 Device I/O Read:

Host Ultra DMA Ready:

Host Ultra DMA Data Strobe

26 Ground

27 I/O Channel Ready

Device Ultra DMA Ready

Device Ulta DMA Data Strobe

28 Cable Select

29 DMA Acknowledge

30 Ground

31 Device Interrupt

32 Reserved

33 Host Address Bus Bit 1

34 Passed Diagnostics

Cable Assembly Type Identifier

35 Device Address (2:0)

36 Device Address (2:0)

37 Chip Select (1:0)

38 Chip Select (1:0)

39 Drive Active/Slave Present

40 Ground

HDMARDY

–

HSTROBE

Ground

IORDY

DDMARDY–

DSTROBE

CSEL

–

DMACK

Ground

INTRQ

–

IOCS16

DA1

PDIAG

–

CBLID–

DA0

DA2

CS0

CS1

–

DASP

Ground

Pins 28, 34 and 39 are used for master-slave communication (details shown below).

Drive 1 (slave)

Drive 0 (master)

Host

CSEL

–

PDIAG

DASP–

Figure 7

I/O pins and supported ATA signals

DB35.3 Series PATA Product Manual, Rev. C

4.1.1

Supported ATA commands

The following table lists ATA-standard commands that the drive supports. For a detailed description of the ATA

commands, refer to the Draft ATA-7 Standard. See “S.M.A.R.T . c ommands” on page 34 for details and sub-

commands used in the S.M.A.R.T. implementation.

Table 6:

Supported ATA commands

Command name

Command code (in hex)

98 or E5

Check Power Mode

Device Configuration Freeze Lock

Device Configuration Identify

Device Configuration Restore

Device Configuration Set

Device Reset

B1 / C1

B1 / C2

B1 / C0

B1 / C3

Download Microcode

Execute Device Diagnostics

Flush Cache

Flush Cache Extended

Format Track

Identify Device

Idle

97 or E3

Idle Immediate

95 or E1

Initialize Device Parameters

Read Buffer

Read DMA

Read DMA Extended

Read DMA Without Retries

Read Log Ext

Read Multiple

Read Multiple Extended

Read Native Max Address

Read Native Max Address Extended

Read Sectors

Read Sectors Extended

Read Sectors Without Retries

Read Verify Sectors

Read Verify Sectors Extended

Read Verify Sectors Without Retries

Recalibrate

Security Disable Password

Security Erase Prepare

DB35.3 Series PATA Product Manual, Rev. C

Command name

Security Erase Unit

Security Freeze

Security Set Password

Security Unlock

Seek

Command code (in hex)

Set Features

Set Max Address

Note: Individual Set Max Address

commands are identified by the value

placed in the Set Max Features regis-

ter as defined to the right.

Address:

Password:

Lock:

Unlock:

Freeze Lock:

Set Max Address Extended

Set Multiple Mode

Sleep

99 or E6

S.M.A.R.T. Disable Operations

S.M.A.R.T. Enable/Disable Autosave

S.M.A.R.T. Enable Operations

S.M.A.R.T. Execute Offline

S.M.A.R.T. Read Attribute Thresholds

S.M.A.R.T. Read Data

S.M.A.R.T. Read Log Sector

S.M.A.R.T. Return Status

S.M.A.R.T. Save Attribute Values

S.M.A.R.T. Write Log Sector

Standby

B0 / D9

B0 / D2

B0 / D8

B0 / D4

B0 / D1

B0 / D0

B0 / D5

B0 / DA

B0 / D3

B0 / D6

96 or E2

Standby Immediate

94 or E0

Write Buffer

Write DMA

Write DMA Extended

Write DMA Without Retries

Write Log Extended

Write Multiple

Write Multiple Extended

Write Sectors

Write Sectors Without Retries

Write Sectors Extended

DB35.3 Series PATA Product Manual, Rev. C

4.1.2

Identify Device command

The Identify Device command (command code EC ) transfers information about the drive to the host following

power up. The data is organized as a single 512-byte block of data, whose contents are shown in the Table 6

on page 28. All reserved bits or words should be set to zero. Parameters listed with an “x” are drive-specific or

vary with the state of the drive. See Section 2.0 on page 3 for default parameter settings.

The following commands contain drive-specific features that may not be included in the Draft ATA-7 Standard.

Word

Description

Value

Configuration information:

• Bit 15: 0 = ATA; 1 = ATAPI

• Bit 7: removable media

• Bit 6: removable controller

• Bit 0: reserved

0C5A

Number of logical cylinders

16,383

ATA-reserved

0000

Number of logical heads

Retired

0000

Retired

Number of logical sectors per logical track: 63

Retired

003F

7–9

10–19

0000

Serial number: (20 ASCII characters, 0000 = none)

ASCII

Retired

Obsolete

0000

0400

0000

x.xx

23–26

Firmware revision (8 ASCII character string, padded with blanks to

end of string)

27–46

Drive model number

(40 ASCII characters, padded with blanks to end of string)

ST3xxxxxACE

(Bits 7–0) Maximum sectors per interrupt on Read multiple and

Write multiple (16)

8010

0000

Reserved

Standard Standby timer, IORDY supported and may be disabled

ATA-reserved

2F00

0000

0200

0007

PIO data-transfer cycle timing mode

Retired

Words 54–58, 64–70 and 88 are valid

Number of current logical cylinders

Number of current logical heads

Number of current logical sectors per logical track

Current capacity in sectors

xxxx

57–58

Number of sectors transferred during a Read Multiple or Write Multi-

ple command

DB35.3 Series PATA Product Manual, Rev. C

Word

Description

Value

60–61

Total number of user-addressable LBA sectors available

(see Section 2.2 for related information)

0FFFFFFFh*

*Note: The maximum value allowed in this field is: 0FFFFFFFh

(268,435,455 sectors, 137 Gbytes). Drives with capacities over 137

Gbytes will have 0FFFFFFFh in this field and the actual number of

user-addressable LBAs specified in words 100-103. This is required

for drives that support the 48-bit addressing feature.

Retired

0000

Multiword DMA active and modes supported

(see note following this table)

xx07

Advanced PIO modes supported (modes 3 and 4 supported)

Minimum multiword DMA transfer cycle time per word (120 nsec)

0003

0078

Recommended multiword DMA transfer cycle time per word (120

nsec)

Minimum PIO cycle time without IORDY flow control (240 nsec)

Minimum PIO cycle time with IORDY flow control (120 nsec)

ATA-reserved

00F0

0078

0000

69–74

Queue depth

76–79

SATA-specific

xxxx

Major version number

007E

Minor version number

0000

Command sets supported

346B

Command sets supported

7D01

Command sets support extension

Command sets enabled

4003

34xx

Command sets enabled

3xxx

Command sets enable extension

4003

Ultra DMA support and current mode

(see note following this table)

xx3F

Security erase time

0000

Enhanced security erase time

Master password revision code

Hardware reset value (see description following this table)

ATA-reserved

FFFE

xxxx

95–99

100–103

0000

Total number of user-addressable LBA sectors available (see Sec-

tion 2.2 for related information). These words are required for drives

that support the 48-bit addressing feature. Maximum value:

0000FFFFFFFFFFFFh.

ST3750840ACE = 1,465,149,168

ST3500830ACE = 976,773,168

ST3400820ACE = 781,422,768

ST3320820ACE = 625,142,448

ST3300820ACE = 586,072,368

ST3250820ACE = 488,397,168

104–127

128

ATA-reserved

0000

Security status

Seagate-reserved

0001

129–159

xxxx

DB35.3 Series PATA Product Manual, Rev. C

Word

160–254

255

Description

ATA-reserved

Integrity word

Value

0000

xxA5

Note. Advanced Power Management (APM) and Automatic Acoustic Management (AAM) features are not supported

Note. See the bit descriptions below for words 63, 88, and 93 of the Identify Drive data:

Description (if bit is set to 1)

Bit

Word 63

Multiword DMA mode 0 is supported.

Multiword DMA mode 1 is supported.

Multiword DMA mode 2 is supported.

Multiword DMA mode 0 is currently active.

Multiword DMA mode 1 is currently active.

Multiword DMA mode 2 is currently active.

Word 88

Bit

Ultra DMA mode 0 is supported.

Ultra DMA mode 1 is supported.

Ultra DMA mode 2 is supported.

Ultra DMA mode 3 is supported.

Ultra DMA mode 4 is supported.

Ultra DMA mode 5 is supported.

Ultra DMA mode 0 is currently active.

Ultra DMA mode 1 is currently active.

Ultra DMA mode 2 is currently active.

Ultra DMA mode 3 is currently active.

Ultra DMA mode 4 is currently active.

Ultra DMA mode 5 is currently active.

Word 93

Bit

1 = 80-conductor cable detected, CBLID above V^IH

0 = 40-conductor cable detected, CBLID below VIL

DB35.3 Series PATA Product Manual, Rev. C

4.1.3

Set Features command

This command controls the implementation of various features that the drive supports. When the drive receives

this command, it sets BSY, checks the contents of the Features register, clears BSY and generates an inter-

rupt. If the value in the register does not represent a feature that the drive supports, the command is aborted.

Power-on default has the read look-ahead and write caching features enabled. The acceptable values for the

Features register are defined as follows:

Enable write cache (default).

Set transfer mode (based on value in Sector Count register).

Sector Count register values:

Set PIO mode to default (PIO mode 2).

Set PIO mode to default and disable IORDY (PIO mode 2).

PIO mode 0

PIO mode 1

PIO mode 2

PIO mode 3

PIO mode 4 (default)

Multiword DMA mode 0

Multiword DMA mode 1

Multiword DMA mode 2

Ultra DMA mode 0

Ultra DMA mode 1

Ultra DMA mode 2

Ultra DMA mode 3

Ultra DMA mode 4

Ultra DMA mode 5

Disable read look-ahead (read cache) feature.

Disable write cache.

Enable read look-ahead (read cache) feature (default).

Report full capacity available

Note. At power-on, or after a hardware or software reset, the default values of the features are as indi-

cated above.

DB35.3 Series PATA Product Manual, Rev. C

4.1.4

S.M.A.R.T. commands

S.M.A.R.T. provides near-term failure prediction for disc drives. When S.M.A.R.T. is enabled, the drive moni-

tors predetermined drive attributes that are susceptible to degradation over time. If self-monitoring determines

that a failure is likely, S.M.A.R.T. makes a status report available to the host. Not all failures are predictable.

S.M.A.R.T. predictability is limited to the attributes the drive can monitor. For more information on S.M.A.R.T.

commands and implementation, see the Draft ATA-7 Standard.

SeaTools diagnostic software activates a built-in drive self-test (DST S.M.A.R.T. command for D4 ) that elimi-

nates unnecessary drive returns. The diagnostic software ships with all new drives and is also available at:

http://seatools.seagate.com.

This drive is shipped with S.M.A.R.T. features disabled. You must have a recent BIOS or software package that

supports S.M.A.R.T. to enable this feature. The table below shows the S.M.A.R.T. command codes that the

drive uses.

Codeinfeatures

S.M.A.R.T. command

S.M.A.R.T. Read Data

S.M.A.R.T. Enable/Disable Attribute Autosave

S.M.A.R.T. Save Attribute Values

S.M.A.R.T. Execute Off-line Immediate (runs DST)

S.M.A.R.T. Read Log Sector

S.M.A.R.T. Write Log Sector

S.M.A.R.T. Enable Operations

S.M.A.R.T. Disable Operations

S.M.A.R.T. Return Status

Note. If an appropriate code is not written to the Features Register, the command is aborted and 0x04

(abort) is written to the Error register.

DB35.3 Series PATA Product Manual, Rev. C

5.0

Seagate Technology support services

Online services

Internet

www.seagate.com for information about Seagate products and services. Worldwide support is available 24

hours daily by e-mail for your questions.

Presales Support: www.seagate.com/support/email/email_presales.html or [email protected]

Technical Support: www.seagate.com/support/email/email_disc_support.html or [email protected]

mySeagate

my.seagate.com is the industry’s first Web portal designed specifically for OEMs and distributors. It provides

self-service access to critical applications, personalized content and the tools that allow our partners to man-

age their Seagate account functions. Submit pricing requests, orders and returns through a single, password-

protected Web interface—anytime, anywhere in the world.

spp.seagate.com

spp.seagate.com supports Seagate resellers with product information, program benefits and sales tools. You

may register for customized communications that are not available on the web. These communications contain

product launch, EOL, pricing, promotions and other channel-related information. To learn more about the ben-

efits or to register, go to spp.seagate.com, any time, from anywhere in the world.

Seagate Service Centers

Presales Support

Our Presales Support staff can help you determine which Seagate products are best suited for your specific

application or computer system, as well as product availability and compatibility.

Technical Support

Seagate technical support is available to assist you online at support.seagate.com or through one of our call

centers. Have your system configuration information and your “ST” model number available.

SeaTDD™ (+1-405-324-3655) is a telecommunications device for the deaf (TDD). You can send questions or

comments 24 hours daily and exchange messages with a technical support specialist during normal business

hours for the call center in your region.

Customer Service Operations

Warranty Service

Seagate offers worldwide customer support for Seagate drives. Seagate distributors, OEMs and other direct

customers should contact their Seagate Customer Service Operations (CSO) representative for warranty-

related issues. Resellers or end users of drive products should contact their place of purchase or one of the

Seagate CSO warranty centers for assistance. Have your drive’s “ST” model number and serial number avail-

able.

DB35.3 Series PATA Product Manual, Rev. C

Data Recovery Services

Seagate offers data recovery services for all formats and all brands of storage media. Our Data Recovery Ser-

vices labs are currently located in North America. To speak with a case management representative, call

1-800-475-0143. Additional information, including an online request form and data loss prevention resources,

is available at www.datarecovery.seagate.com.

Authorized Service Centers

In some locations outside the US, you can contact an Authorized Service Center for service.

USA/Canada/Latin America support services

Seagate Service Centers

Presales Support

Call center

Americas

Toll-free

Direct dial

FAX

+1-405-324-4704

1-877-271-3285¹

+1-405-324-4730¹

Technical Support

Call center

Americas

Toll-free

Direct dial

FAX

+1-405-324-3339

1-800-SEAGATE²

+1-405-324-4700²

Customer Service Operations

Warranty Service

Call center

USA, Canada, Mexico and

Latin America

Toll-free

Direct dial

—

FAX / E-mail

+1-956-664-4725

1-800-468-3472³

Brazil

Jabil Industrial Do Brasil

—

+55-11-4191-4761

+55-11-4191-5084

[email protected]

LTDA⁴

Data Recovery Services

Call center

Toll-free

Direct dial

FAX

USA, Canada,

and Mexico

1-800-475-01435

+1-905-474-2162

1-800-475-0158

+1-905-474-2459

Hours of operation are 8:00 A.M. to 7:00 P.M., Monday through Friday (Central time).

Hours of operation are 8:00 A.M. to 8:00 P.M., Monday through Friday (Central time).

Hours of operation are 8:00 A.M. to 5:00 P.M., Monday through Friday (Central time).

Authorized Service Center

Hours of operation are 8:00 A.M. to 8:00 P.M., Monday through Friday, and 9:00 A.M. to 5:00 P.M., Saturday (Eastern time).

DB35.3 Series PATA Product Manual, Rev. C

European support services

For presales and technical support in Europe, dial the Seagate Service Center toll-free number for your spe-

cific location. If your location is not listed here, dial our presales and technical support call center at +1-405-

324-4714 from 8:00 A.M. to 11:45 A.M. and 1:00 P.M. to 5:00 P.M. (Central Europe time) Monday through Friday.

The presales and technical support call center is located in Oklahoma City, USA.

For European warranty service, dial the toll-free number for your specific location. If your location is not listed

here, dial our European CSO warranty center at +31-20-316-7222 from 8:30 A.M. to 5:00 P.M. (Central Europe

time) Monday through Friday. The CSO warranty center is located in Amsterdam, The Netherlands.

Seagate Service Centers

Toll-free support numbers

Call center

Austria

Belgium

Denmark

France

Germany

Ireland

Italy

Presales and Technical Support

—

Warranty Service

00 800-47324289

00 800-311 12 38

00 800-47324289

00 800-31 92 91 40

00 800-47324289

00 800-47324283 (00 800-4SEAGATE)

00 800-47324283

00 800-311 12 38

00 800-47324283

00 800-31 92 91 40

00 800-47324283

Netherlands

Norway

Poland

Spain

Sweden

Switzerland

Turkey

United Kingdom

FAX services—All Europe (toll call)

Technical Support

Warranty Service

+1-405-324-3339

+31-20-653-3513

Africa/Middle East support services

For presales and technical support in Africa and the Middle East, dial our presales and technical support call

center at +1-405-324-4714 from 8:00 A.M. to 11:45 A.M. and 1:00 P.M. to 5:00 P.M. (Central Europe time) Mon-

day through Friday. The presales and technical support call center is located in Oklahoma City, USA.

For warranty service in Africa and the Middle East, dial our European CSO warranty center at +31-20-316-

7222 from 8:30 A.M. to 5:00 P.M. (Central Europe time) Monday through Friday, or send a FAX to +31-20-653-

3513. The CSO warranty center is located in Amsterdam, The Netherlands.

DB35.3 Series PATA Product Manual, Rev. C

Asia/Pacific support services

For Asia/Pacific presales and technical support, dial the toll-free number for your specific location. The Asia/

Pacific toll-free numbers are available from 6:00 A.M. to 10:45 A.M. and 12:00 P.M. to 6:00 P.M. (Australian East-

ern time) Monday through Friday, except as noted. If your location is not listed here, direct dial one of our tech-

nical support locations.

Warranty service is available from 9:00 A.M. to 5:00 P.M., Monday through Friday. Warranty service for Australia

is available from 10:00 A.M. to 7:00 P.M., April through October, and from 11:00 A.M. to 8:00 P.M. November

through March (Australian Eastern time) Monday through Friday.

Seagate Service Centers

Call center

Australia

China (Mandarin)

Hong Kong

Toll-free

1800-14-7201

800-810-9668

800-90-0474

Direct dial

—

+86-10-6225-5336

FAX

—

1, 4

—

1, 4

Hong Kong (Cantonese)

001-800-0830-1730

1-800-180-1104

001-803-1-003-2165

0034 800 400 554

007 98 8521 7635

1-800-80-2335

0800-443988

800-1101-150

00-800-0830-1730

001-800-11-0032165

2, 4

India

Indonesia

3, 4

Japan

Korea

3, 4

—

Malaysia

New Zealand

Singapore

Taiwan (Mandarin)

Thailand

+65-6488-7525

—

1, 4

Customer Service Operations

Warranty Service

Call center

Asia/Pacific

Australia

Toll-free

—

1800-12-9277

—

Direct dial

+65-6485-3595

—

FAX

+65-6485-4860

—

India

+91-44-42015000

+91-44-42015184

Hours of operation are 8:30 A.M. to 5:30 P.M., Monday through Friday (Australian Western time).

Hours of operation are 9:00 A.M. to 6:00 P.M., Monday through Saturday.

Hours of operation are 9:30 A.M. to 6:30 P.M., Monday through Friday.

Authorized Service Center

DB35.3 Series PATA Product Manual, Rev. C

Device Configuration Set 28

Device Reset 28

diagnostic software 1, 34

dissipation 11

Index

Download Microcode 28

drive diagnostics 10

drive monitoring 1

drive self-test 1, 34

DST 34

acoustics 16

Active mode 13

agency certification (regulatory) 17

altitude 14

ambient conditions 3

ambient temperature 10, 14

areal density 1, 9

ATA interface 27

electrical fast transient 17

electromagnetic compatibility 18

Electromagnetic Compatibility Directive 18

electromagnetic immunity 17

electrostatic discharge 17

EMC compliance 18

ATA-standard commands 28

Australian C-Tick 18

autodetection 1

average seek time 10

BPI 9

EN 60950 17

enclosures 18

environmental specifications 14

EPRML 1, 9

error-correction algorithms 1

errors 17

breather filter hole precautions 22

burst 1

European Union 18

Execute Device Diagnostics 28

cable 24

cable select 1

cable-select option 23

cache 1

case temperature 14

CE mark 18

certification 17

Check Power Mode 28

commands 28

failure prediction 34

FCC verification 18

Features register 33

Flush Cache 28

Flush Cache Extended 28

Format Track 28

compliance 18

formatted capacity 8

frequency 17

conducted noise 12

conducted RF immunity 17

configuring the drive 21

connector pins 27

connectors 24

guaranteed sectors 8

contact start-stop cycles 17

Corrosive environment 19

CSA C22.2 (950) 17

CSEL 23

C-Tick 18

current profile 12

cycles 17

handling 21

heads 1

height 9

humidity 14

I/O data-transfer rate 9

Identify Device 28

Identify Device command 30

Idle 28

Idle and Standby timers 13

Idle Immediate 28

Idle mode 13

data-transfer rates 1

DC power 10

density 9

Device Configuration Freeze Lock 28

Device Configuration Identify 28

Device Configuration Restore 28

DB35.3 Series PATA Product Manual, Rev. C

Idle mode power 10

IEC950 17

power-management modes 13

Power-on to Ready 10

Information Technology Equipment 18

Initialize Device Parameters 28

interface 9, 27

precautions 24

preventive maintenance 17

programmable power management 13

interface signals 27

interference 18

internal data-transfer rate OD 9

ISO document 7779 16

radiated RF immunity 17

radio and television interference 18

radio frequency 17

random track location 11

Read Buffer 28

jumper settings 23

Read DMA 28

Read DMA Extended 28

Read DMA without Retries 28

read errors 17

Korean RRL 18

Read Log Ext 28

Read Multiple 1, 28

Read Multiple Extended 28

Read Native Max Address 28

Read Native Max Address Extended 28

Read Sectors 28

LBA mode 8

length 9

logical geometry 8

Read Sectors Extended 28

Read Sectors Without Retries 28

Read Verify Sectors 28

Read Verify Sectors Extended 28

Read Verify Sectors Without Retries 28

read/write power and current 10

Recalibrate 28

recording and interface technology 9

recording density 9

recording heads 1

maintenance 17

master 23

master/slave 1

Master/slave configuration 23

maximum temperature 14

measurement locations 14

modes 27

monitoring 1

mounting the drive 21, 24

recording method 9

relative humidity 14

noise 12

reliability 17

nominal power 3

resistance 12

nonoperating shock 15

nonoperating vibration 15

nonrecoverable read errors 17

resistive load 12

RF 17

RoHS 19

operating power and current 10

operating shock 15

operating vibration 15

orientation 24

S.M.A.R.T. commands 34

S.M.A.R.T. Disable Operations 29

S.M.A.R.T. drive monitoring 1

S.M.A.R.T. Enable/Disable Autosave 29

S.M.A.R.T. Enagle Operations 29

S.M.A.R.T. Execute Offline 29

S.M.A.R.T. Read Attribute Thresholds 29

S.M.A.R.T. Read Data 29

S.M.A.R.T. Read Log Sector 29

S.M.A.R.T. Return Status 29

S.M.A.R.T. Save Attribute Values 29

S.M.A.R.T. Write Log sector 29

physical characteristics 9

pins 27

PIO 27

power consumption 10

power management 13

power specifications 10

DB35.3 Series PATA Product Manual, Rev. C

safety certification 17

screws 24

Ultra ATA/100 24

Ultra DMA 24

SeaTools 1, 34

sectors 8

Security Disable Password 28

Security Erase Prepare 28

Security Erase Unit 29

Security Freeze 29

Security Set Password 29

Security Unlock 29

Seek 29

vibration 15

voltage 13

voltage dips, interrupts 17

voltage tolerance 13

seek mode 10

weight 9

seek time 10

servo electronics 11

Set Features 29

wet bulb temperature 14

width 9

Write Buffer 29

Set Features command 33

Set Max Address 29

Set Max Address Extended 29

Set Multiple Mode 29

shock 15

signals 27

single-track seeks 10

slave 23

Write DMA 29

Write DMA Extended 29

Write DMA Without Retries 29

Write Log Extended 29

Write Multiple 1, 29

Write Multiple Extended 29

Write Sectors 29

Write Sectors Extended 29

Write Sectors Without Retries 29

Sleep 11, 29

Sleep mode 13

sound 16

specifications 3

spindle speed 9

Spinup 11

spinup power 10

Standby 11, 29

Standby Immediate 29

Standby mode 11, 13

Standby to Ready 10

start/stop times 10

start-stop cycles 17

static-discharge precautions 21

stop times 10

subassembly 18

support services 35

surge immunity 17

technical support services 35

temperature 14

temperature gradient 14

TGMR 1

timers 13

track density 9

track-to-track seek time 10

TUV North America 17

UL 1950 17

DB35.3 Series PATA Product Manual, Rev. C

Seagate Technology LLC

920 Disc Drive, Scotts Valley, California 95066-4544, USA

Publication Number: 100427568, Rev. C, Printed in U.S.A.

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