Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC
in the United States and/or other countries. Barracuda, SeaTools and SeaTDD are either trademarks or
registered trademarks of Seagate Technology LLC or one of its affiliated companies in the United States
and/or other countries. All other trademarks or registered trademarks are the property of their respective
owners.
One gigabyte, or GB, equals one billion bytes when referring to hard drive capacity. Accessible capacity
may vary depending on operating environment and formatting. Quantitative usage examples for various
applications are for illustrative purposes. Actual quantities will vary based on various factors, including file
size, file format, features and application software. Seagate reserves the right to change, without notice,
product offerings or specifications.
This manual describes the functional, mechanical and interface specifications for the following Seagate
Barracuda® 7200.8 PATA model drives:
Barracuda 7200.8 PATA
• ST3400832A
• ST3400632A
• ST3300831A
• ST3300631A
• ST3250823A
• ST3250623A
• ST3200826A
These drives provide the following key features:
• 7,200-RPM spindle speed
• 8-Mbyte buffer on: ST3400832A, ST3300831A, ST3250823A and ST3200826A.
• 16-Mbyte buffer on: ST3400632A, ST3300631A, and ST3250623A
• High instantaneous (burst) data transfer rates (up to 100 Mbytes per second) using Ultra DMA mode 5.
• Tunneling Magnetoresistive (TMR) recording heads 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.
• 300 Gs nonoperating shock.
• 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).
®
2
Barracuda 7200.8 PATA Product Manual, Rev. F
Barracuda 7200.8 PATA Product Manual, Rev. F
3
2.0Drive 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
ST3400832A, ST3400632A, ST3300831A, ST3300631A, ST3250823A, ST3250623A, and ST3200826A
model drives.
2.1Specification summary table
The specifications listed in tables 1, 2, and 3 are for quick reference. For details on specification measurement
or definition, see the appropriate section of this manual.
4
Barracuda 7200.8 PATA Product Manual, Rev. F
T a ble 1: Drive specifications for 400 Gbyte models
(Mbits/in2 avg)
Spindle speed (RPM)7,200
Internal data transfer rate (Mbytes/sec max)95
Sustained data transfer rate OD (Mbytes/sec)65
I/O data-transfer rate (Mbytes/sec max)100
ATA data-transfer modes
supported
Cach e buffer8 Mbytes16 Mbytes
Height (mm max)26.11 mm (1.028 inches)
Width (mm max)101.85 mm (4.010 inches)
Length (mm max)146.99 mm (5.787 inches)
Weight (max)635 grams (1.39 lb.)
Average latency (msec)4.16
Power-on to ready (sec max)10.0 sec
Standby to ready (sec max)10.0 sec
Track-to-track seek time (msec typical)0.8 (read), 1.0 (write)
Average seek, read (msec typical)<11.0
Average seek, write (msec typical)<12.0
Startup current (typical) 12V (peak)2.8 amps
Seek power (typical)12.4 watts
Read/write power (typical)12.8 watts
Idle mode (typical)7.2 watts
Standby mode (typical)0.8 watts
Sleep mode (typical)0.8 watts
Voltage tolerance
(including noise)
Ambient
temperature
Temperature gradient
(°C per hour max)
Relative humidity5% to 90% (operating)
Relative humidity gradient30% per hour max
Wet bulb temperature
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.
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 period s of driv e idle, some offline acti vity may occur according to th e S.M.A .R .T. spe cif ica tion, whi ch ma y increase acoustic and
power to operational levels.
6
Barracuda 7200.8 PATA Product Manual, Rev. F
T a ble 2: Drive specifications for 300 Gbyte models
(Mbits/in2 avg)
Spindle speed (RPM)7,200
Internal data transfer rate (Mbytes/sec max)95
Sustained data transfer rate OD (Mbytes/sec)65
I/O data-transfer rate (Mbytes/sec max)100
ATA data-transfer modes
supported
Cache buffer8 Mbytes16 Mbytes
Height (mm max)26.11 mm (1.028 inches)
Width (mm max)101.85 mm (4.010 inches)
Length (mm max)146.99 mm (5.787 inches)
Weight (max)635 grams (1.39 lb.)
Average latency (msec)4.16
Power-on to ready (sec max)10.0 sec
Standby to ready (sec max)10.0 sec
Track-to-track seek time (msec typical)0.8 (read), 1.0 (write)
Average seek, read (msec typical)<11.0
Average seek, write (msec typical)<12.0
Startup current (typical) 12V (peak)2.8 amps
Seek power (typical)12.4 watts
Read/write power (typical)12.8 watts
Idle mode (typical)7.2 watts
Standby mode (typical)0.8 watts
Sleep mode (typical)0.8 watts
Voltage tolerance
(including noise)
Ambient
temperature
Temperature gradient
(°C per hour max)
Relative humidity5% to 90% (operating)
Relative humidity gradient30% per hour max
Wet bulb temperature
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 Y our 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.
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 period s of driv e idle, some offline acti vity may occur according to th e S.M.A .R .T. spe cif ica tion, whi ch ma y increase acoustic and
power to operational levels.
8
Barracuda 7200.8 PATA Product Manual, Rev. F
T a ble 3: Drive specifications for 250 and 200 Gbyte models
(Mbits/in2 avg)
Spindle speed (RPM)7,200
Internal data transfer rate (Mbytes/sec max)95
Sustained data transfer rate OD (Mbytes/sec)65
I/O data-transfer rate (Mbytes/sec max)100
ATA data-transfer modes
supported
Cache buffer8 Mbytes16 Mbytes
Height (mm max)26.11 mm (1.028 inches)
Width (mm max)101.85 mm (4.010 inches)
Length (mm max)146.99 mm (5.787 inches)
Weight (max)635 grams (1.39 lb.)
Average latency (msec)4.16
Power-on to ready (sec max)10.0 sec
Standby to ready (sec max)10.0 sec
Track-to-track seek time (msec typical)0.8 (read), 1.0 (write)
Average seek, read (msec typical)<11.0
Average seek, write (msec typical)<12.0
Startup current (typical) 12V (peak)2.8 amps
Seek power (typical)12.4 watts
Read/write power (typical)12.8 watts
Idle mode (typical)7.2 watts
Standby mode (typical)0.8 watts
Sleep mode (typical)0.8 watts
Voltage tolerance
(including noise)
Ambient
temperature
Temperature gradient
(°C per hour max)
Relative humidity5% to 90% (operating)
Relative humidity gradient30% per hour max
Wet bulb temperature
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 Y our 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.
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 period s of driv e idle, some offline acti vity may occur according to th e S.M.A .R .T. spe cif ica tion, whi ch ma y increase acoustic and
power to operational levels.
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