Publication number: 100451230, Rev. B September 2007
Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC
in the United States and/or other countries. DiamondMax, MaxBlast, Maxtor and the Maxtor logo 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. Seagate reserves the right to change, with
out notice, product offerings or specifications.
This manual describes the functional, mechanical and interface specifications for the following Maxtor
DiamondMax® 21 PATA model drives:
STM3320820ASTM3250620ASTM3200820ASTM380215A
STM3300620ASTM3250820ASTM3160215A
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.
• Tunneling magnetoresistive (TMR) recording heads and 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).
®
DiamondMax 21 PATA Product Manual, Rev. B1
2DiamondMax 21 PATA Product Manual, Rev. B
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 the
following drive models:
STM3320820ASTM3250620ASTM3200820ASTM380215A
STM3300620ASTM3250820ASTM3160215A
2.1Specification summary tables
The specifications listed in the following tables are for quick reference. For details on specification measurement or definition, see the appropriate section of this manual.
DiamondMax 21 PATA Product Manual, Rev. B3
Table 1: Drive specifications summary for the 320 and 300 Gbyte models
Drive specificationSTM3320820ASTM3300620A
Formatted Gbytes (512 bytes/sector)*320300
Guaranteed sectors625,142,448586,072,368
Heads43
Discs2
Bytes per sector512
Default sectors per track63
Default read/write heads16
Default cylinders16,383
Recording density781 kbits/in max
Track density145 ktrakcs/in avg.
Areal density114.4 Gbits/in2 avg
Spindle speed7,200 RPM
Internal data transfer rate1,030 Mbits/sec max
Sustained data transfer rate72 Mbytes/sec max
I/O data-transfer rate100 Mbytes/sec max
ATA data-transfer modes supportedPIO modes 0–4
Cache buffer8 Mbytes16 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)
Weight635 grams600 grams
Average latency4.16 msec
Power-on to ready (max)15 sec 11 s ec
Standby to ready (max)15 sec
Track-to-track seek time (typical)<0.8 msec (read), <1.0 msec (write)
Average seek, read (typical)<11.0 msec
Average seek, write (typical)<12.0 msec
Startup current (typical) 12V (peak)2.8 amps
Voltage tolerance (including noise)5V ± 5%
Ambient temperature0° to 60°C (operating)
Temperature gradient20°C per hour max (operating)
Relative humidity5% to 90% (operating)
Relative humidity gradient30% per hour max
Wet bulb temperature (max)37.7°C (operating)
Altitude, operating–60.96 m to 3,048 m
Altitude, nonoperating
(below mean sea level, max)
Contact start-stop cycles50,000 at 25°C, 50% rel. humidity
*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.
22–350 Hz: 0.50 G
350–500 Hz:: 0.25 G
22–350 Hz: 5.0 G
350–500 Hz:: 1.0 G
3.0 (max)
3.4 (max)
14
bits read
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 sys
tem will display the warranty information for your drive.
http://www.seagate.com/support/service/
2.5 (typical)
2.8 (max)
3.0 (typical)
3.1 (max)
-
DiamondMax 21 PATA Product Manual, Rev. B5
Table 2: Drive specifications summary for 250 and 200 Gbyte models
Contact start-stop cycles50,000 at 25°C, 50% rel. humidity
*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.
22–350 Hz: 0.50 G
350–500 Hz:: 0.25 G
22–350 Hz: 5.0 G
350–500 Hz:: 1.0 G
2.8 (max)
3.1 (max)
14
bits read
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 sys
tem will display the warranty information for your drive.
http://www.seagate.com/support/service/
-
DiamondMax 21 PATA Product Manual, Rev. B7
Table 3: Drive specifications summary for the 160 and 80 Gbyte model
Drive specificationSTM3160215ASTM380215A
Formatted Gbytes (512 bytes/sector)*16080
Guaranteed sectors312,581,808156,301,488
Heads21
Discs1
Bytes per sector512
Default sectors per track63
Default read/write heads16
Default cylinders16,383
Recording density824 kbits/in max
Track density137.259 ktracks/in avg.
Areal density101 Gbits/in2 avg
Spindle speed7,200 RPM
Internal data transfer rate930 Mbits/sec max
Sustained data transfer rate OD78 Mbytes/sec max
I/O data-transfer rate100 Mbytes/sec max
ATA data-transfer modes supportedPIO modes 0–4
Cache buffer2 Mbytes
Height (max)19.99 mm (0.787 inches)
Width (max)101.6 mm (4.000 inches) +/- 0.010 inches
Length (max)146.99 mm (5.787 inches)
Weight (max)380 grams365 grams
Average latency4.16 msec
Power-on to ready (max)7.9 sec
Standby to ready (max)7.9 sec
Track-to-track seek time (typical)<1.0 msec (read), <1.2 msec (write)
Average seek, read (typical)<11.0 msec
Average seek, write (typical)<12.0 msec
Startup current (typical) 12V (peak)2.8 amps
Voltage tolerance (including noise)5V ± 5%
Ambient temperature0° to 60°C (operating)
Temperature gradient20°C per hour max (operating)
Relative humidity5% to 90% (operating)
Relative humidity gradient30% per hour max
Wet bulb temperature37.7°C max) (operating)
Altitude, operating–60.96 m to 3,048 m
Altitude, nonoperating
(below mean sea level, max)
Contact start-stop cycles50,000 at 25°C, 50% rel. humidity
*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.
22–350 Hz: 0.50 G
350–500 Hz:: 0.25 G
22–350 Hz: 5.0 G
350–500 Hz:: 1.0 G
3.0 (max)
3.2 (max)
14
bits read
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 sys
tem will display the warranty information for your drive.
http://www.seagate.com/support/service/
-
DiamondMax 21 PATA Product Manual, Rev. B9
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