Seagate EE25 SERIES ST940814AM User Manual

Product Manual  
EE25 Series  
ST940813AM  
ST940814AM  
ST930813AM  
ST930814AM  
ST920813AM  
ST920814AM  
100384290  
Rev. E  
August 2007  
Contents  
5.0  
EE25 Series Product Manual, Rev. E  
i
ii  
EE25 Series Product Manual, Rev. E  
iv  
EE25 Series Product Manual, Rev. E  
1.0  
Introduction  
This manual describes the functional, mechanical and interface specifications for the following Seagate® EE25  
Series drives:  
ST940813AM  
ST940814AM  
ST930813AM  
ST930814AM  
ST920813AM  
ST920814AM  
OEM  
40 GBytes  
40 GBytes  
30 Gbytes  
30 Gbytes  
20 Gbytes  
20 Gbytes  
Aftermarket  
OEM  
Aftermarket  
OEM  
Aftermarket  
These drives provide the following key features:  
• Extreme operating environment capabilities:  
OEM temperature range: -30°C to 85°C  
Aftermarket temperature range: -20°C to 75°C  
• 5,400-RPM spindle speed and 8-Mbyte buffer combine for superior performance.  
• Quiet operation. Fluid Dynamic Bearing (FDB) motor.  
• High instantaneous (burst) data transfer rates (up to 100 Mbytes per second) using Ultra DMA mode 5.  
• Tunneling Magnetoresistive (TMR) recording heads.  
• State-of-the-art cache and on-the-fly error-correction algorithms.  
• Full-track multiple-sector transfer capability without local processor intervention.  
• 800 Gs nonoperating shock and 200 Gs operating shock.  
• SeaTools™ diagnostic software performs a drive self-test that eliminates unnecessary drive returns.  
• The 3D Defense System™, which includes Drive Defense, Data Defense, and Diagnostic Defense, offers the  
industry’s most comprehensive protection for disc drives.  
• 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).  
EE25 Series Product Manual, Rev. E  
1
                                               
2
EE25 Series Product Manual, Rev. E  
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  
ST940813AM, ST940814AM, ST930813AM, ST930814AM, ST920813AM, and ST920814AM model drives.  
2.1  
Specification summary  
The specifications listed in the following two tables are for quick reference. For details on specification mea-  
surement or definition, see the appropriate section of this manual.  
EE25 Series Product Manual, Rev. E  
3
         
Table 1:  
Specifications for 40 and 30 Gbyte models  
ST940813AM  
ST940814AM  
(Aftermarket)  
ST930813AM  
(OEM)  
ST930814AM  
(Aftermarket)  
Drive specification  
(OEM)  
Formatted (512 bytes/sector)*  
Guaranteed sectors  
Bytes per sector  
Physical read/write heads  
Discs  
40 Gbytes  
30 Gbytes  
58,605,120  
78,140,160  
512  
2
1
Cache  
8 Mbytes  
Recording density, BPI  
Track density. TPI  
Areal density  
540.1k bits/inch at ID  
119k tracks/inch at ID  
2
64.3 Gbits/inch at ID  
Spindle speed  
5,400 RPM  
Internal data transfer rate  
I/O data transfer rate  
ATA data-transfer modes supported  
Height  
321.1 Mbits/sec max  
100 Mbytes/sec  
PIO modes 0–4; Multiword DMA modes 0–2; Ultra DMA modes 0–5  
9.5 +/-0.2 mm (0.374 +/-.008 inches)  
69.85 +/-0.25 mm (2.750 +/-0.010 inches)  
100.2 +/-0.25 mm (3.945 +/-0.010 inches)  
100 grams (0.22 lb) (typical)  
Width  
Length  
Weight  
Average latency  
5.6 msec  
Power-on to ready  
-20 to 85°C)  
-30 to -20°C  
3 sigma maximum at extreme temperature  
3.0 seconds (typical)  
15 seconds (typical)  
30 seconds  
Standby to ready  
-20 to 85°C  
-30 to -20°C  
3 sigma maximum at extreme temperature  
3.0 seconds (typical)  
15 seconds (typical)  
30 seconds  
Track-to-track seek time  
Average seek time  
Average seek, read  
Average seek, write  
Full-stroke seek  
Startup current 5V  
Seek power  
1.0 ms (read, typical), 1.5 ms (write, typical)  
12.5 msec (typical)  
12.5 msec (typical)  
14.5 msec (typical)  
22 msec (typical); 24 msec (max)  
1.1 amps (typical)  
1.90 watts / 0.38 amps (typical)  
1.90 watts / 0.38 amps (typical)  
1.70 watts / 0.34 amps (typical)  
0.99 watts / 0.20 amps (typical)  
0.26 watts / 0.05 amps (typical)***  
0.26 watts / 0.05 amps (typical)***  
5V ± 5%  
Read power  
Write power  
Idle mode  
Standby mode  
Sleep mode  
Voltage tolerance (including noise)  
Ambient temperature  
-30° to 85°C (OEM); -20° to 75°C (aftermarket);  
–40° to 95°C (OEM and aftermarket)  
Operating  
Nonoperating  
Temperature gradient  
3°C (operating)  
(°C per minute, max, noncondensing)  
3°C (nonoperating)  
Relative humidity (noncondensing)  
5% to 90% (operating)  
5% to 95% (nonoperating)  
Relative humidity gradient  
30% per hour max  
4
EE25 Series Product Manual, Rev. E  
ST940813AM  
(OEM)  
ST940814AM  
(Aftermarket)  
ST930813AM  
(OEM)  
ST930814AM  
(Aftermarket)  
Drive specification  
Wet bulb temperature  
40°C (operating, max)  
40°C (nonoperating, max)  
Altitude, operating (at 25°C)  
–304.8 m to 4,419.6 m (–1000 ft to 14,500 ft)  
For higher temperature capabilities, See “Temperature vs. altitude capability”  
Altitude, nonoperating (below mean sea level, max)  
–304.8 m to 12,192 m (–1,000 ft to 40,000 ft)  
Shock, operating  
at 2 msec  
200 Gs max  
110 Gs max  
at 11 msec  
Shock, nonoperating  
at 2 msec  
800 Gs max  
800 Gs max  
400 Gs max  
at 1 msec  
at 0.5 msec  
Vibration, operating (swept sine)  
(max displacement may apply below 10 hz)  
2.0 G (10 - 200 Hz)  
1.0 G (200 - 500 Hz)  
Vibration, nonoperating  
5.0 Gs (0 to peak, 5–500 Hz); (X, Y, Z axis 0, 22, 45° angles)  
(max displacement may apply below 22 hz)  
Drive acoustics, sound power  
Idle**  
2.3 Bels (typical)  
2.5 Bels (max)  
Normal seek  
2.5 Bels (typical)  
2.7 Bels (max)  
Performance seek  
2.8 Bels (typical)  
3.0 Bels (max)  
14  
Nonrecoverable read errors  
1 per 10 bits read  
Mean Time Before Failure (MTBF)  
550,000 power-on hours  
At 8,760 POH (Power On Hours) per year  
Max case temperature: 70°C at the case measurement location shown in  
Figure 3.  
Load/Unload (U/UL) cycles  
25°C, 50% relative humidity  
600,000 software-controlled power on/off cycles  
30,000 hard power on/off cycles  
32°C, 80% relative humidity  
5°C, 80% relative humidity  
5°C, 10% relative humidity  
60°C, 20% relative humidity  
600,000 software-controlled power on/off cycles  
30,000 hard power on/off cycles  
Service life  
Warranty  
10 years (form, fit, and function replacement)  
1 year standard (up to 5 years max with additional warranty purchase).  
To determine the warranty for a specific drive, use a web browser to access the  
following web page:  
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.  
*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.  
***Typical host systems will pull power to the drive when entering S3 and S4; while in the S3 and S4 states, drive sleep and drive standby  
modes will not contribute to battery power consumption.  
EE25 Series Product Manual, Rev. E  
5
Table 2:  
Specifications for 20 Gbyte models  
ST920813AM  
(OEM)  
ST920814AM  
(Aftermarket)  
Drive specification  
Formatted (512 bytes/sector)*  
Guaranteed sectors  
Bytes per sector  
Physical read/write heads  
Discs  
20 Gbytes  
39,070,080  
512  
1
1
Cache  
8 Mbytes  
Recording density, BPI  
Track density. TPI  
Areal density  
540.1k bits/inch at ID  
119k tracks/inch at ID  
2
64.3 Gbits/inch at ID  
Spindle speed  
5,400 RPM  
Internal data transfer rate  
I/O data transfer rate  
ATA data-transfer modes supported  
Height  
321.1 Mbits/sec max  
100 Mbytes/sec  
PIO modes 0–4; Multiword DMA modes 0–2; Ultra DMA modes 0–5  
9.5 +/-0.2 mm (0.374 +/-.008 inches)  
69.85 +/-0.25 mm (2.750 +/-0.010 inches)  
100.2 +/-0.25 mm (3.945 +/-0.010 inches)  
100 grams (0.22 lb) (typical)  
Width  
Length  
Weight  
Average latency  
5.6 msecs  
Power-on to ready  
-20 to 85°C)  
-30 to -20°C  
3 sigma maximum at extreme temperature  
3.0 seconds (typical)  
15 seconds (typical)  
30 seconds  
Standby to ready  
-20 to 85°C  
-30 to -20°C  
3 sigma maximum at extreme temperature  
3.0 seconds (typical)  
15 seconds (typical)  
30 seconds  
Track-to-track seek time  
Average seek time  
Average seek, read  
Average seek, write  
Full-stroke seek  
Startup current 5V  
Seek power  
1.0 msec (read, typical), 1.5 msec (write, typical)  
12.5 msec (typical)  
12.5 msec (typical)  
14.5 msec (typical)  
22 msec (typical); 24 msec (max)  
1.1 amps (typical)  
1.90 watts / 0.38 amps (typical)  
1.90 watts / 0.38 amps (typical)  
1.70 watts / 0.34 amps (typical)  
0.99 watts / 0.20 amps (typical)  
0.26 watts / 0.05 amps (typical)***  
0.26 watts / 0.05 amps (typical)***  
5V ± 5%  
Read power  
Write power  
Idle mode  
Standby mode  
Sleep mode  
Voltage tolerance (including noise)  
Ambient temperature  
Operating  
Nonoperating  
-30° to 85°C (OEM); -20° to 75°C (aftermarket);  
–40° to 95°C (OEM and aftermarket)  
Temperature gradient  
3°C per minute, noncondensing (operating)  
3°C per minutes, max, noncondensing (nonoperating)  
Relative humidity (noncondensing)  
Relative humidity gradient  
5% to 90% (operating)  
5% to 95% (nonoperating)  
30% per hour max  
6
EE25 Series Product Manual, Rev. E  
ST920813AM  
(OEM)  
ST920814AM  
(Aftermarket)  
Drive specification  
Wet bulb temperature  
40°C (operating, max)  
40°C (nonoperating, max)  
Altitude, operating (at 25°C)  
–304.8 m to 4,419.6 m (–1000 ft to 14,500 ft)  
For higher temperature capabilities, See “Temperature vs. altitude capability”  
Altitude, nonoperating (below mean sea level, max)  
–304.8 m to 12,192 m (–1,000 ft to 40,000 ft)  
Shock, operating  
at 2 msec  
200 Gs max  
110 Gs max  
at 11 msec  
Shock, nonoperating  
at 2 msec  
800 Gs max  
800 Gs max  
400 Gs max  
at 1 msec  
at 0.5 msec  
Vibration, operating  
(max displacement may apply below 10 hz)  
2.0 G (10 - 200 Hz)  
1.0 G (200 - 500 Hz)  
Vibration, nonoperating  
5.0 Gs (0 to peak, 5–500 Hz)  
(max displacement may apply below 22 hz)  
Drive acoustics, sound power  
Idle**  
2.3 Bels (typical)  
2.5 Bels (max)  
Normal seek  
2.5 Bels (typical)  
2.7 Bels (max)  
Performance seek  
2.8 Bels (typical)  
3.0 Bels (max)  
14  
Nonrecoverable read errors  
1 per 10 bits read  
Mean Time Before Failure (MTBF)  
550,000 power-on hours  
At 8,760 POH (Power On Hours) per year  
Max case temperature: 70°C at the case measurement location shown in  
Figure 3.  
Load/Unload (U/UL) cycles  
25°C, 50% relative humidity  
600,000 software-controlled power on/off cycles  
30,000 hard power on/off cycles  
32°C, 80% relative humidity  
5°C, 80% relative humidity  
5°C, 10% relative humidity  
60°C, 20% relative humidity  
600,000 software-controlled power on/off cycles  
30,000 hard power on/off cycles  
Service life  
Warranty  
10 years (form, fit, and function replacement)  
1 year standard (up to 5 years max with additional warranty purchase).  
To determine the warranty for a specific drive, use a web browser to access the  
following web page:  
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.  
*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.  
***Typical host systems will pull power to the drive when entering S3 and S4; while in the S3 and S4 states, drive sleep and drive standby  
modes will not contribute to battery power consumption.  
EE25 Series Product Manual, Rev. E  
7
2.2  
Formatted capacity  
Model  
Formatted capacity*  
Guaranteed sectors  
78,140,160  
Bytes per sector  
ST940813AM  
ST940814AM  
ST930813AM  
ST930814AM  
ST920813AM  
ST920814AM  
40 Gbytes  
40 Gbytes  
30 Gbytes  
30 Gbytes  
20 Gbytes  
20 Gbytes  
512  
512  
512  
512  
512  
512  
78,140,160  
58,605,120  
58,605,120  
39,070,080  
39,070,080  
*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment  
and formatting.  
2.3  
Default logical geometry  
Cylinders  
Read/write heads  
Sectors per track  
16,383  
16  
63  
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.  
2.4  
Physical organization  
Model  
Read/write heads  
Number of discs  
ST940813AM  
ST940814AM  
ST930813AM  
ST930814AM  
ST920813AM  
ST920814AM  
2
2
2
2
1
1
1
1
1
1
1
1
8
EE25 Series Product Manual, Rev. E  
                       
2.5  
Recording and interface technology  
Technology  
Interface  
Specification  
Parallel ATA  
Recording density BPI  
Track density TPI  
Areal density  
540.1k bits/inch typical  
119k tracks/inch typical  
2
64.3 Gbits/inch max  
Spindle speed  
5,400 RPM (± 0.2%)  
321.1 Mbits/sec max  
100 Mbytes/sec max  
1:1  
Internal data-transfer rate  
I/O data transfer rate  
Interleave  
Cache buffer  
8 Mbytes (8,192 kbytes)  
2.6  
Physical characteristics  
Height  
(mm)  
(inches)  
9.5 +/–0.2  
0.374 +/–0.008  
Width  
(mm)  
(inches)  
69.85 +/–0.25  
2.750 +/–0.010  
Length  
(mm)  
(inches)  
100.2 +/–0.25  
3.945 +/–0.010  
Typical weight  
(grams)  
(pounds)  
100  
0.22  
2.7  
Seek time  
Seek measurements are taken with nominal power. All times are measured using drive diagnostics. The spec-  
ifications 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.  
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 speci-  
fications.  
EE25 Series Product Manual, Rev. E  
9
                                                 
Read seek times vs temperature  
85°C  
msec  
Typical  
25°C  
-20°C  
-30°C  
msec  
msec  
msec  
Max  
Typical  
Max  
Typical  
Max  
Typical  
Max  
Track-to-track  
Average  
1
1
0.5  
11  
1
0.5  
11  
6
1
6
11  
22  
5.6  
15  
28  
13  
24  
14  
28  
11  
23  
5.6  
17  
29  
Full-stroke  
22  
22  
Average latency  
5.6  
5.6  
Write seek times vs temperature  
85°C  
msec  
Typical  
25°C  
msec  
Typical  
-20°C  
msec  
Typical  
-30°C  
msec  
Typical Max  
Max  
Max  
Max  
Track-to-track  
Average  
1
2
1
2
1
7
1
7
14  
23  
5.6  
19  
30  
14  
25  
5.6  
15  
27  
14  
25  
5.6  
16  
30  
15  
25  
5.6  
19  
30  
Full-stroke  
Average latency  
2.8  
Start/stop times  
Typical  
Max  
Power-on to Ready  
-20 to 85°C  
-30 to -20°C  
3 sigma at extreme temperature  
3.0 seconds  
15 seconds  
-
8.0 seconds  
-
30 seconds  
Standby to Ready  
-20 to 85°C  
3.0 seconds  
15 seconds  
-
8.0 seconds  
-
30 seconds  
-30 to -20°C  
3 sigma at extreme temperature  
Spin down (secs typical at 1 to 85°C)  
Spin down (secs typical at -30 to 0°C)  
5.0  
15  
8.0  
20  
10  
EE25 Series Product Manual, Rev. E  
       
2.9  
Power specifications  
The drive receives DC power (+5V) through the interface connector.  
2.9.1 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 input voltage at 25°C ambient tempera-  
ture.  
• Spinup power  
Spinup power is measured fromthe time ofpower-onto thetimethat 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 is measured based on  
three random seek operations every 100 msecs. This mode is not typical.  
Read/write power and current  
Read/write power is measured with the heads on track, based on three 63 sector read or write operations  
every 100 msecs.  
• Idle mode power*  
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 model  
+5V average  
Power dissipation  
85C  
25C  
-20C  
-30C  
Watts  
4.5  
Amps  
0.9  
Watts  
Amps  
1.0  
Watts  
Amps  
1.0  
Watts  
6.5  
Amps  
1.3  
Spinup, typical  
Spinup, maximum  
Idle, performance mode*  
Idle, active*  
Idle, low power mode*  
Seeking  
5
5
5
1.0  
5.5  
1.1  
5.5  
1.1  
7.5  
1.5  
1.35  
0.96  
0.82  
1.57  
1.57  
1.38  
0.30  
0.30  
0.27  
0.19  
0.16  
0.31  
0.31  
0.27  
0.06  
0.06  
1.72  
0.99  
0.88  
1.90  
1.90  
1.70  
0.26  
0.26  
0.34  
0.2  
2.18  
2.05  
1.95  
2.38  
2.40  
2.45  
0.22  
0.22  
0.43  
0.41  
0.39  
0.47  
0.48  
0.49  
0.04  
0.04  
2.76  
2.69  
2.67  
2.97  
2.97  
3.00  
0.22  
0.22  
0.55  
0.53  
0.53  
0.59  
0.59  
0.60  
0.04  
0.04  
0.17  
0.38  
0.38  
0.34  
0.05  
0.05  
Read  
Write  
Standby  
Sleep  
*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.  
EE25 Series Product Manual, Rev. E  
11  
                                     
2.9.1.1  
Typical current profile  
Figure 1. Typical 5V startup and operation current profile  
2.9.2  
Conducted noise  
Input noise ripple is measured at the host system power supply across an equivalent 15-ohm resistive load on  
the +5 volt line.  
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 cur-  
rent.  
2.9.3  
Voltage tolerance  
Voltage tolerance (including noise):  
5V ± 5%  
12  
EE25 Series Product Manual, Rev. E  
                 
2.9.4  
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 modes  
Active (operating)  
Idle, performance  
Idle, active  
Heads  
Spindle  
Rotating  
Rotating  
Rotating  
Rotating  
Stopped  
Stopped  
Buffer  
Tracking  
Tracking  
Floating  
Parked  
Parked  
Parked  
Enabled  
Enabled  
Disabled  
Disabled  
Disabled  
Disabled  
Idle, low power  
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.  
EE25 Series Product Manual, Rev. E  
13  
                   
2.10  
Environmental specifications  
Ambient temperature  
2.10.1  
Ambient temperature is defined as the temperature of the environment immediately surrounding the drive.  
Actual drive case temperature, measured on baseplate, should not exceed 90°C (194°F) within the operating  
ambient conditions.  
Operating  
OEM: -30° to 85°C (-86° to 185°F)  
Aftermarket: -20° to 75°C (-68° to 167°F)  
Nonoperating  
–40° to 95°C (–140° to 203°F)  
2.10.2  
2.10.3  
Temperature gradient  
Operating  
3°C per minute (37°F per minute max), without condensation  
3°C per minute (37°F per minute max)  
Nonoperating  
Humidity  
2.10.3.1  
2.10.3.2  
Relative humidity  
Operating 5% to 90% noncondensing (30% per hour max)  
Nonoperating 5% to 95% noncondensing (30% per hour max)  
Wet bulb temperature  
Operating 40°C (104°F max)  
Nonoperating 40°C (104°F max)  
2.11  
Altitude  
Operating  
Nonoperating  
–304.8 m to 5,000 m (–1,000 ft to 16,400 ft) at 25°C.  
For higher temperature capabilities, see Figure 2 below.  
–304.8 m to 12,192 m (–1,000 ft to 40,000 ft)  
14  
EE25 Series Product Manual, Rev. E  
                           
5500  
5000  
4500  
4000  
3500  
3000  
2500  
75C  
85C  
-30  
-10  
10  
30  
50  
70  
90  
Temperature (degrees C)  
Altitude (m)  
Figure 2. Temperature vs. altitude capability  
2.11.1  
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.  
2.11.1.1  
Operating shock  
These drives comply with the performance levels specified in this document when subjected to a maximum  
operating shock of 200 Gs based on half-sine shock pulses of 2 msec. Shocks should not be repeated more  
than two times per second. For 11 msec shock duration, these drives will withstand operating shock up to 110  
Gs.  
2.11.1.2  
Nonoperating shock  
The nonoperating shock level that the drive can experience without incurring physical damage or degradation  
in performance when subsequently put into operation is 800 Gs based on a nonrepetitive half-sine shock pulse  
of 2 msec duration.  
The nonoperating shock level that the drive can experience without incurring physical damage or degradation  
in performance when subsequently put into operation is 800 Gs based on a nonrepetitive half-sine shock pulse  
of 1 msec duration.  
The nonoperating shock level that the drive can experience without incurring physical damage or degradation  
in performance when subsequently put into operation is 400 Gs based on a nonrepetitive half-sine shock pulse  
of 0.5 msec duration.  
EE25 Series Product Manual, Rev. E  
15  
         
2.11.2  
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.  
2.11.2.1  
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.  
10–200 Hz 2.0 G (0 to peak)  
200–500 Hz 1.0 G (0 to peak)  
2.11.2.2  
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.  
5–500 Hz  
5.0 Gs (0 to peak). Max displacement may apply below 22 Hz.  
2.12  
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)  
Acoustic mode  
Idle*  
Normal Seek  
Performance Seek  
2.3 bels (typ)  
2.5 bels (max)  
2.5 bels (typ)  
2.7 bels (max)  
2.8 bels (typ)  
3.0 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.  
16  
EE25 Series Product Manual, Rev. E  
               
2.13  
Electromagnetic immunity  
When properly installed in a representative host system, the drive operates without errors or degradation in  
performance when subjected to the rradio frequency (RF) environments defined in the following table:  
Performance  
level  
Reference  
standard  
Test  
Description  
Electrostatic discharge  
Radiated RF immunity  
Contact, HCP, VCP: ± 4 kV; Air: ± 8 kV  
B
A
EN 61000-4-2: 95  
EN 61000-4-3: 96  
80 to 2,000 MHz, 10 V/m,  
80% AM with 1 kHz sine  
900 MHz, 3 V/m, 50% pulse modulation @ 200 Hz  
ENV 50204: 95  
Electrical fast transient  
Surge immunity  
± 1 kV on AC mains, ± 0.5 kV on external I/O  
± 1 kV differential, ± 2 kV common, AC mains  
B
B
A
EN 61000-4-4: 95  
EN 61000-4-5: 95  
EN 61000-4-6: 97  
Conducted RF immunity  
150 kHz to 80 MHz, 3 Vrms, 80% AM with 1 kHz  
sine  
Power Frequency H-field 1 A/m, 50Hz/60Hz, 3 axes  
immunity  
A
EN 61000-4-8: 97  
EN 61000-4-11: 94  
Voltage dips, interrupts  
30% Reduction for 25 cycles  
>95% Reduction for 250 cycles  
>95%, 0.5 cycles  
C
C
B
A - 1) No upset or degradation in performance beyond manufacturer’s specified limits.  
2) No data loss.  
B - 1) Unit self recovers without user intervention.  
2) No data loss.  
C - 1) Upset OK provided that unit will function after user intervention.  
2.14  
Reliability  
Measurement type  
Specification  
14  
Nonrecoverable read errors  
1 per 10 bits read, max.  
Mean time between failures  
(MTBF)  
550,000 power-on hours  
At 8,760 POH (Power On Hours) per year  
Max case temperature: 70°C at the case measurement location shown in Figure 4.  
Load/Unload (U/UL)  
25°C, 50% relative humidity  
600,000 software-controlled power on/off cycles  
30,000 hard power on/off cycles  
32°C, 80% relative humidity  
5°C, 80% relative humidity  
5°C, 10% relative humidity  
60°C, 20% relative humidity  
600,000 software-controlled power on/off cycles  
30,000 hard power on/off cycles  
Service Life  
Warranty  
10 years, form, fit, and function replacement  
1 year standard (up to 5 years with additional warranty purchase).  
To determine the warranty for a specific drive, use a web browser to access the fol-  
lowing web page:  
From this page, click on the “Verify Your Warranty” link. You will be asked to pro-  
vide the drive serial number, model number (or part number) and country of pur-  
chase. The system will display the warranty information for your drive.  
EE25 Series Product Manual, Rev. E  
17  
                                               
2.15  
Agency certification  
Safety certification  
2.15.1  
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.  
2.15.2  
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: EE25 Series  
• Certificate numbers:STX-EE251 (B)  
• Trade name or applicant: Seagate Technology International  
• Manufacturing date: March 2006  
• Manufacturer/nationality: Seagate Technology International  
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).  
2.15.3  
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.  
18  
EE25 Series Product Manual, Rev. E  
                                                   
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.  
• 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.  
2.16  
Environmental protection  
Seagate designs its products to meet environmental protection requirements worldwide, including regulations  
restricting certain chemical substances.  
2.16.1  
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.  
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.  
2.17  
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 corro-  
sive chemicals as electronic drive component reliability can be affected by the installation environment. The sil-  
ver, copper, nickel and gold films used in Seagate products are especially sensitive to the presence of sulfide,  
chloride, 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  
EE25 Series Product Manual, Rev. E  
19  
             
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.  
20  
EE25 Series Product Manual, Rev. E  
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:  
• Keep the drive in the electrostatic discharge (ESD) bag until you are ready for installation to limit the drive’s  
exposure to ESD.  
• 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 only by its edges or frame.  
• The drive is 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.  
3.2  
Jumper settings  
3.2.1  
Master/slave configuration  
Use the options jumper block shown in Figure 3 to configure the drive for operation. This jumper block is the  
4-pin header adjacent to pins 1 and 2 of the I/O signal pins. For additional information about using the Cable  
select option, see Section 3.2.2.  
The “Drive is master (or single drive)” option is the default setting.  
Drive is master (or single drive)  
Drive is slave  
Cable select  
Figure 3. Jumper settings  
EE25 Series Product Manual, Rev. E  
21  
                     
3.2.2  
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 as shown in Figure 3. Refer to your computer manual to determine whether  
your computer supports this option.  
3.3  
Drive mounting  
You can mount the drive using four screws in the side-mounting holes or four screws in the bottom-mounting  
holes. See Figure 4 for drive mounting dimensions (dimensions in inches with mm in parentheses). Follow  
these important mounting precautions 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 M3 x 0.5 mounting screws.  
• Do not overtighten the mounting screws (maximum torque: 4.0 inch-lb).  
• Four (4) threads (0.080 inches) minimum screw engagement recommended.  
3.945 +/-0.010  
(100.2 +/-.25)  
0.490 +/- .010  
(12.446 +/- .254)  
.157  
(3.9878)  
.399  
(10.135)  
0.673 +/- .010  
(17.09 +/- .254)  
Breather Hole  
Do not cover  
or seal.  
2.750 +/- .010  
(69.85 +/- .25)  
3.567  
(90.60)  
Recommended case temp.  
measurement location  
.551  
2X M3 X 0.5-6H  
Mounting holes  
Both sides  
(13.99)  
.374 +/- .008  
(9.5 +/- .2)  
.12 min. full thread  
2X .118 (3.00)  
Both sides  
4X M3 X 0.5-6H  
Mounting holes  
.10 min. full thread  
3.567  
(90.60)  
.551  
(13.99)  
inches  
(mm)  
2.430  
(61.72)  
.399  
(10.135)  
.160  
(4.06)  
Detail A  
Detail A  
Figure 4. Mounting dimensions—top, side and end view  
22  
EE25 Series Product Manual, Rev. E  
               
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.  
For detailed information about the ATA interface, refer to the AT Attachment - 6 with Packet Interface (ATA/  
ATAPI-6), ANSI NCITS 361-200, subsequently referred to as the ATA-6 Standard.  
4.1  
ATA interface signals and connector pins  
The following table summarizes the signals on the 44-pin ATA interface connector. For a detailed description of  
these signals, refer to the ATA-6 Standard.  
Connector  
Contact  
Cable  
Conductor  
Cable  
Conductor  
Connector  
Contact  
Signal Name  
Signal Name  
RESET-  
DD7  
1
1
2
2
Ground  
DD8  
3
3
4
4
DD6  
5
5
6
6
DD9  
DD5  
7
7
8
8
DD10  
DD4  
9
9
10  
12  
14  
16  
18  
20  
22  
24  
26  
28  
30  
32  
34  
36  
38  
40  
42  
44  
10  
12  
14  
16  
18  
20  
22  
24  
26  
28  
30  
32  
34  
36  
38  
40  
42  
44  
DD11  
DD3  
11  
13  
15  
17  
19  
21  
23  
25  
27  
29  
31  
33  
35  
37  
39  
41  
43  
11  
13  
15  
17  
19  
21  
23  
25  
27  
29  
31  
33  
35  
37  
39  
41  
43  
DD12  
DD2  
DD13  
DD1  
DD14  
DD0  
DD15  
Ground  
DMARQ  
DIOW-  
DIOR-  
IORDY  
DMACK-  
INTRQ  
DA1  
(keypin)  
Ground  
Ground  
Ground  
PSYNC:CSEL  
Ground  
IOCS16-  
PDIAG-  
DA2  
DA0  
CS1FX-  
DASP-  
+5 V (Logic)  
Ground (Return)  
CS3FX-  
Ground  
+5V (Motor)  
No connection  
EE25 Series Product Manual, Rev. E  
23  
                   
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 ATA-6 Standard.  
Command name  
ATA-standard commands  
ATA Device Configuration Overlay  
ATA Service  
Command code (in hex)  
B1  
A2  
H
H
Check Power Mode  
Download Microcode  
Execute Device Diagnostics  
Flush Cache  
98 E5  
H,  
H
92  
90  
H
H
E7  
H
H
Format Track (Legacy)  
Identify Device  
50  
EC  
H
Idle  
97 E3  
H,  
H
Idle Immediate  
95 E1  
H,  
H
Initialize (Set) Device Parameters  
Read Buffer  
91  
H
E4  
H
Read DMA  
C8 C9  
H,  
H
Read Log Extended  
Read Multiple  
22  
H
C4  
H
H
Read Native Max Address  
Read Sectors  
F8  
20 21  
H,  
H
Read Verify Sectors  
Recalibrate  
40 41  
H, H  
10  
H
Security Disable Password  
Security Erase Prepare  
Security Erase Unit  
Security Freeze Lock  
Security Set Password  
Security Unlock  
F6  
F3  
F4  
F5  
F1  
F2  
H
H
H
H
H
H
H
H
Seek  
70  
91  
Set Drive Parameters  
Set Features  
EF  
H
H
Set Max Address  
F9  
24  
EE25 Series Product Manual, Rev. E  
                                 
Command name  
Command code (in hex)  
Note: Individual Set Max com-  
mands are identified by the value Password  
placed in the Set Max Features  
register as defined to the right.  
Address  
00  
01  
02  
03  
H
H
H
H
H
Lock  
Unlock  
Freeze Lock 04  
Set Multiple Mode  
Sleep  
C6  
H
99 E6  
H,  
H
S.M.A.R.T.  
B0  
H
Standby  
96 E2  
H, H  
Standby Immediate  
Vendor Unique  
Write Buffer  
94 E0  
H, H  
9A FA FB  
H,  
H
H,  
H
E8  
Write DMA  
CA CB  
H, H  
Write Log Extended  
Write Multiple  
Write Sectors  
32  
H
C5  
H
30 31  
H,  
H
ATA-standard power-management commands  
Check Power Mode  
Idle  
98 or E5  
H
H
H
H
H
H
H
97 or E3  
H
Idle Immediate  
95 or E1  
H
Sleep  
99 or E6  
H
Standby  
96 or E2  
H
Standby Immediate  
ATA-standard security commands  
Security Set Password  
Security Unlock  
94 or E0  
H
F1  
F2  
F3  
F4  
F5  
F6  
H
H
H
H
H
H
Security Erase Prepare  
Security Erase Unit  
Security Freeze Lock  
Security Disable Password  
EE25 Series Product Manual, Rev. E  
25  
                                       
4.1.2  
Identify Device command  
The Identify Device command (command code EC ) transfers information about the drive to the host following  
H
power up. The data, shown below, is organized as a single 512-byte block of data. 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 ATA-6 Standard.  
Word  
Description  
Value  
0C5A  
0
Configuration information:  
• Bit 15: 0 = ATA; 1 = ATAPI  
• Bit 7: removable media  
• Bit 6: removable controller  
• Bit 0: reserved  
H
1
Number of logical cylinders  
16,383  
2
ATA-reserved  
0000  
16  
H
3
Number of logical heads  
4
Retired  
0000  
0000  
H
H
5
Retired  
6
Number of logical sectors per logical track: 63  
Retired  
003F  
H
H
7–9  
10–19  
20  
0000  
Serial number: (20 ASCII characters, 0000 = none)  
ASCII  
H
Retired  
Retired  
Obsolete  
0000  
0400  
0000  
x.xx  
H
H
H
21  
22  
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)  
ST940813AM  
ST940814AM  
ST930813AM  
ST930814AM  
ST920813AM  
ST920814AM  
47  
(Bits 7–0) Maximum sectors per interrupt on Read multiple and  
Write multiple (16)  
8010  
H
48  
49  
50  
51  
52  
53  
54  
55  
56  
Reserved  
0000  
H
Standard Standby timer, IORDY supported and may be disabled  
ATA-reserved  
2F00  
H
H
H
H
H
0000  
0200  
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  
xxxx  
xxxx  
xxxx  
H
H
H
26  
EE25 Series Product Manual, Rev. E  
   
Word  
57–58  
59  
Description  
Value  
Current capacity in sectors  
xxxx  
xxxx  
H
H
Number of sectors transferred during a Read Multiple or Write  
Multiple command  
60–61  
Total number of user-addressable LBA sectors available  
(see Section 2.2 for related information)  
ST940813AM = 78,140,160  
ST940814AM = 78,140,160  
ST930813AM = 58,605,120  
ST930814AM = 58,605,120  
ST920813AM = 39,070,080  
ST920814AM = 39,070,080  
62  
63  
Retired  
0000  
H
H
Multiword DMA active and modes supported (see note following  
this table)  
xx07  
64  
65  
Advanced PIO modes supported (modes 3 and 4 supported)  
0003  
0078  
H
Minimum multiword DMA transfer cycle time per word (120  
nsec)  
H
66  
Recommended multiword DMA transfer cycle time per word  
(120 nsec)  
0078  
H
67  
Minimum PIO cycle time without IORDY flow control (240 nsec)  
Minimum PIO cycle time with IORDY flow control (120 nsec)  
ATA-reserved  
00F0  
H
H
H
H
H
68  
0078  
0000  
0000  
0000  
69–74  
75  
Queue depth  
76–79  
80  
ATA-reserved  
Major version number  
007E  
H
H
81  
Minor version number  
0000  
82  
Command sets supported  
346B  
H
83  
Command sets supported  
7D01  
H
84  
Command sets support extension  
Command sets enabled  
4003  
H
85  
34xx  
H
H
86  
Command sets enabled  
3xxx  
87  
Command sets enable extension  
4003  
H
88  
Ultra DMA support and current mode  
(see note following this table)  
xx3F  
H
89  
Security erase time  
0000  
0000  
0040  
H
H
H
90  
Enhanced security erase time  
Advanced power management value  
Master password revision code  
Hardware reset value (see description following this table)  
Auto acoustic management setting  
ATA-reserved  
91  
92  
FFFE  
H
93  
xxxx  
xxxx  
H
94  
H
95–127  
128  
0000  
0001  
H
Security status  
H
EE25 Series Product Manual, Rev. E  
27  
Word  
Description  
Value  
xxxx  
129–159  
160–254  
255  
Seagate-reserved  
ATA-reserved  
Integrity word  
H
0000  
xxA5  
H
H
Note. See the bit descriptions below for words 63, 88, 93 and 94 of the Identify Drive data.  
Description (if bit is set to 1)  
Bit  
0
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.  
1
2
8
9
10  
Bit  
0
Word 88  
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 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.  
1
2
3
4
8
9
10  
11  
12  
13  
Bit  
Word 93  
13  
1 = 80-conductor cable detected, CBLID above VIH  
0 = 40-conductor cable detected, CBLID below VIL  
28  
EE25 Series Product Manual, Rev. E  
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:  
02  
03  
Enable write cache (default).  
H
Set transfer mode (based on value in Sector Count register).  
H
Sector Count register values:  
00  
01  
08  
09  
Set PIO mode to default (PIO mode 2).  
Set PIO mode to default and disable IORDY (PIO mode 2).  
PIO mode 0  
H
H
H
H
PIO mode 1  
0A  
PIO mode 2  
H
0B  
PIO mode 3  
H
0C  
PIO mode 4 (default)  
Multiword DMA mode 0  
Multiword DMA mode 1  
Multiword DMA mode 2  
Ultra DMA mode 0  
H
20  
21  
22  
40  
41  
42  
43  
44  
45  
H
H
H
H
H
H
H
H
H
Ultra DMA mode 1  
Ultra DMA mode 2  
Ultra DMA mode 3  
Ultra DMA mode 4  
Ultra DMA mode 5  
05  
55  
82  
Enable advanced power management  
Disable read look-ahead (read cache) feature.  
Disable write cache.  
H
H
H
AA  
Enable read look-ahead (read cache) feature (default).  
Report full capacity available  
H
F1  
H
Note. At power-on or after a hardware or software reset the default values of the features are as indicated  
above.  
EE25 Series Product Manual, Rev. E  
29  
       
30  
EE25 Series Product Manual, Rev. E  
5.0  
Seagate Technology support services  
Internet  
For information regarding Seagate products and services, visit www.seagate.com. Worldwide support is  
available 24 hours daily by email for your questions.  
Presales Support:  
Technical Support:  
Warranty Support:  
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  
manage 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  
benefits 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.  
EE25 Series Product Manual, Rev. E  
31  
   
Customer Service Operations  
Warranty Service  
Seagate offers worldwide customer support for Seagate products. 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 Seagate  
warranty service for assistance. Have your serial number and model or part number available.  
Data Recovery Services  
Seagate offers data recovery services for all formats and all brands of storage media. Our data recovery  
services labs are currently located throughout the world. . Additional information, including an online request  
form and data loss prevention resources, is available at http://services.seagate.com/index.aspx  
Authorized Service Centers  
Seagate Service Centers are available on a global basis for the return of defective products. Contact your  
customer support representative for the location nearest you.  
USA/Canada/Latin America support services  
For an extensive list of telephone numbers to technical support, presales and warranty service in USA/  
Canada/Latin America, including business hours, go to the "Contact Us" page on www.seagate.com.  
Global Customer Support  
Presales, Technical, and Warranty Support  
Call Center  
USA, Canada,  
and Mexico  
Toll-free  
Direct dial  
1-800-SEAGATE  
+1-405-324-4700  
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  
Europe, the Middle East and Africa Support Services  
For an extensive list of telephone numbers to technical support, presales and warranty service in Europe, the  
Middle East and Africa, go to the "Contact Us" page on www.seagate.com.  
Asia/Pacific Support Services  
For an extensive list of telephone numbers to technical support, presales and warranty service in Asia/Pacific,  
go to the "Contact Us" page on www.seagate.com.  
32  
EE25 Series Product Manual, Rev. E  
discs 8  
dissipation 11  
Index  
Download Microcode 24  
Drive Defense 1  
drive diagnostics 9  
drive monitoring 1  
drive self-test 1  
Numerics  
3D Defense System 1  
A
acoustics 16  
Active mode 13  
E
electrical fast transient 17  
electromagnetic compatibility 18  
Electromagnetic Compatibility Directive 18  
electromagnetic immunity 17  
electrostatic discharge 17  
EMC compliance 18  
EN 60950 18  
enclosures 18  
environmental specifications 14  
error-correction algorithms 1  
errors 17  
agency certification (regulatory) 18  
altitude 14  
ambient conditions 3  
ambient temperature 14  
areal density 9  
ATA interface 23  
ATA-standard commands 24  
Australian C-Tick 18  
autodetection 1  
average seek time 9  
European Union 18  
European Union Restriction of Hazardous Substanc-  
B
BPI 9  
buffer 1, 9  
burst 1  
Execute Device Diagnostics 24  
F
C
FCC verification 18  
Features register 29  
Flush Cache 24  
formatted capacity 8  
frequency 17  
cable select 1  
cable-select option 22  
cache 1, 9  
case temperature 14  
CE mark 18  
certification 18  
Check Power Mode 25  
commands 24  
G
guaranteed sectors 8  
compliance 18  
H
conducted noise 12  
conducted RF immunity 17  
configuring the drive 21  
connector pins 23  
Corrosive environment 19  
CSA C22.2 (950) 18  
CSEL 22  
C-Tick 18  
current profile 12  
cycles 17  
handling 21  
heads 1, 8  
height 9  
humidity 14  
I
Identify Device 24  
Identify Device command 26  
Idle 11, 25  
Idle and Standby timers 13  
Idle Immediate 25  
D
Data Defense 1  
data-transfer rates 1  
DC power 11  
density 9  
Diagnostic Defense 1  
diagnostic software 1  
Idle mode 13  
Idle mode power 11  
IEC950 18  
Information Technology Equipment 18  
Initialize Device Parameters 24  
interface 9, 23  
EE25 Series Product Manual, Rev. E  
33  
interface signals 23  
interference 18  
precautions 22  
programmable power management 13  
interleave 9  
internal data-transfer rate OD 9  
ISO document 7779 16  
R
radiated RF immunity 17  
radio and television interference 19  
radio frequency (RF) 17  
random track location 11  
Read Buffer 24  
J
jumper settings 21  
Read DMA 24  
read errors 17  
Read Multiple 1, 24  
Read Native Max Address 24  
Read Sectors 24  
K
Korean RRL 18  
L
LBA mode 8  
length 9  
Load/Unload 17  
logical geometry 8  
Read Verify Sectors 24  
read/write heads 8  
read/write power and current 11  
recording and interface technology 9  
recording density 9  
recording heads 1  
register 29  
relative humidity 14  
reliability 17  
resistance 12  
M
master/slave 1  
Master/slave configuration 21  
Mean time between failures 17  
modes 23  
monitoring 1  
mounting the drive 21, 22  
MTBF 17  
RoHS 19  
S
S.M.A.R.T. 25  
N
S.M.A.R.T. drive monitoring 1  
safety certification 18  
screws 22  
SeaTools 1  
sectors 8  
security commands 25  
Security Disable Password 25  
Security Erase Prepare 25  
Security Erase Unit 25  
Security Freeze Lock 25  
Security Set Password 25  
Security Unlock 25  
Seek 24  
seek mode 11  
seek time 9  
Seeking 11  
Service Life 17  
servo electronics 11  
Set Features 24  
Set Features command 29  
Set Max 24  
Set Multiple Mode 25  
shock 15  
noise 12  
nominal power 3  
nonoperating shock 15  
nonoperating vibration 16  
nonrecoverable read errors 17  
O
operating shock 15  
operating vibration 16  
P
physical characteristics 9  
physical organization 8  
pins 23  
PIO 23  
power consumption 11  
power dissipation 11  
power frequency h-field immunity 17  
power management 13  
power on/off cycles 17  
power specifications 11  
power-management commands 25  
power-management modes 13  
Power-on to Ready 10  
signals 23  
single-track seeks 9  
34  
EE25 Series Product Manual, Rev. E  
Sleep 11, 25  
Sleep mode 13  
sound 16  
specifications 3  
Spin down 10  
spindle speed 9  
Spinup 11  
spinup power 11  
Standby 11, 25  
Standby Immediate 25  
Standby mode 11, 13  
static-discharge precautions 21  
subassembly 18  
support services 31  
surge immunity 17  
T
technical support services 31  
temperature 14  
temperature gradient 14  
time to ready 10  
timers 13  
TMR 1  
track density 9  
track-to-track seek time 9  
TUV North America 18  
U
UL 1950 18  
V
vibration 16  
voltage 12  
voltage dips, interrupts 17  
voltage tolerance 12  
W
Warranty 17  
weight 9  
wet bulb temperature 14  
width 9  
Write Buffer 25  
Write DMA 25  
Write Multiple 1, 25  
Write Sectors 25  
EE25 Series Product Manual, Rev. E  
35  
36  
EE25 Series Product Manual, Rev. E  
Seagate Technology LLC  
920 Disc Drive, Scotts Valley, California 95066-4544, USA  
Publication Number: 100384290, Rev. E, Printed in U.S.A.  

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