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This manual describes the functional, mechanical and interface specifications for the following Maxtor
DiamondMax® 20 PATA model drives:
STM3300622ASTM3160212A
STM3250623ASTM3160812A
STM3250624ASTM3802110A
STM3200827ASTM3402111A
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 Giant magnetoresistive (TGMR) 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.
• 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 20 PATA Product Manual, Rev. A1
2DiamondMax 20 PATA Product Manual, Rev. A
2.0Drive specifications
Unless otherwise noted, all specifications are measured under ambient conditions, at 25°C, and nominal
power. For convenience, the phrases t he drive and this drive are used throughout th is manual to indi cate the
following drive models:
The specificatio ns l isted in the f ollowing tables i n thi s se ction are for q uick r efer ence. F or de tails on s pecif ication measurement or definition, see the appropriate section of this manual.
DiamondMax 20 PATA Product Manual, Rev. A3
Table 1: Drive specifi cations summary for 300 and 250 Gbyte models
Formatted Gbytes (512 bytes/sector)*300250250
Guaranteed sectors586,072,368488,397,168488,397,168
Bytes per sector512
Default sectors per track63
Default read/write heads16
Default cylinders16,383
Recording density790.1 kbits/in max763 kbits/in max
Track density124.5 ktracks/in avg120 ktracks/in avg
Areal density97.69 Gbits/in
Spindle speed7,200 RPM
Internal data transfer rate867.2 Mbits/sec max760 Mbits/sec max
Sustained data transfer rate OD76.6 Mbytes/sec max65 Mbytes/sec max
I/O data-transfer rate100 Mbytes/sec max
ATA data-transfer modes supportedPIO modes 0–4
Cache buffer16 Mbytes
Height (max)26.11 mm (1.028 inches)
Width (max)101.6 mm (4.000 inches) +/- 0.010 inches101.85 mm (4.010 inches)
Length (max)146.99 mm (5.787 inches)
Weight (max)655 grams (1.44 lb.)580 grams (1.28 lb.)635 grams (1.39 lb.)
Average latency4.16 msec
Power-on to ready (max)11.0 sec10.0 sec
Standby to ready (max)11.0 sec10.0 sec
Track-to-track seek time<0.8 msec typical (read), <1.0 msec typical (write)
Average seek, read<11.0 msec typical)
Average seek, write<12.0 msec typical)
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)
Operational Shock63 G max at 2 msec
Non-Operational Shock300 G max at 2 msec350 G max at 2 msec300 G max at 2 msec
Vibration, operating5–22 Hz: 0.25 G, Limited displacement
Drive acoustics, sound power (Bels)
Idle**2.7 (typical)
Quiet seek3.0 (typical)
Nonrecoverable read errors1 per 10
Annualized Failure Rate (AFR)0.34%
Warranty3 years on distribution units.
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: 5.0 G
350–500 Hz: 1.0 G
2.9 (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:
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.
2.7 (typical)
2.9 (max)
3.0 (typical)
3.2 (max)
5–22 Hz:
Limited displacement
23–350 Hz: 5.0 G
2.8 (typical)
3.4 (max)
3.7 (typical)
3.9
DiamondMax 20 PATA Product Manual, Rev. A5
Table 2: Drive specifi cations summary for the 200 Gbyte model
Drive specificationSTM3200827A
Formatted Gbytes (512 bytes/sector)*200
Guaranteed sectors390,721,968
Bytes per sector512
Default sectors per track63
Default read/write heads16
Default cylinders16,383
Recording density790.1 kbits/in max
Track density124.5 ktracks/in avg
Areal density97.69 Gbits/in
Spindle speed7,200 RPM
Internal data transfer rate867.2 Mbits/sec max
Sustained data transfer rate OD76.6 Mbytes/sec max
I/O data-transfer rate100 Mbytes/sec max
ATA data-transfer modes supportedPIO modes 0–4
Cache buffer8 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 (max)580 grams
Average latency4.16 msec
Power-on to ready (max)11 sec
Standby to ready (max)11 sec
Track-to-track seek time<0.8 msec typical (read), <1.0 msec typical (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)
Operational Shock63 G max at 2 msec
Non-Operational Shock350 G max at 2 msec
Vibration, operating5–22 Hz: 0.25 G, Limited displacement
Drive acoustics, sound power (Bels)
Idle**2.7 (typical)
Quiet seek3.0 (typical)
Nonrecoverable read errors1 per 10
Annualized Failure Rate (AFR)0.34%
Warranty3 years on distribution units.
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: 5.0 G
350–500 Hz:: 1.0 G
2.9 (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:
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.
DiamondMax 20 PATA Product Manual, Rev. A7
Table 3: Drive specifi cations summary for the 160 Gbyte models
Drive specificationSTM3160812ASTM3160212A
Formatted Gbytes (512 bytes/sector)*160
Guaranteed sectors312,581,808
Bytes per sector512
Default sectors per track63
Default read/write heads16
Default cylinders16,383
Recording density840.0 kbits/in max
Track density141.5 ktracks/in avg
Areal density119. 0 Gbit s/in
Spindle speed7,200 RPM
Internal data transfer rate867.2 Mbits/sec max
Sustained data transfer rate OD83.0 Mbytes/sec max
I/O data-transfer rate100 Mbytes/sec max
ATA data-transfer modes supportedPIO modes 0–4
Cache buffer8 Mbytes2 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 (max)580 grams (1.28 lb.)
Average latency4.16 msec
Power-on to ready (max)<10.0 sec
Standby to ready (max)<10.0 sec
Track-to-track seek time<0.8 msec typical (read), <1.0 msec typical (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)
Operational Shock63 G max at 2 msec
Non-Operational Shock350 G max at 2 msec
Vibration, operating5–22 Hz: 0.25 G, Limited displacement
Drive acoustics, sound power (Bels)
Idle**2.5 (typical)
Quiet seek2.8 (typical)
Nonrecoverable read errors1 per 10
Annualized Failure Rate (AFR)0.34%
Warranty3 years on distribution units.
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: 5.0 G
350–500 Hz:: 1.0 G
2.7 (max)
3.0 (max)
14
bits read
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.
DiamondMax 20 PATA Product Manual, Rev. A9
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