Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate
Technology LLC in the United States and/or other countries. Momentus, SeagateSeaBOARD, SeaFONE, SeaTDD, and SeaTools are either trademarks or registered trademarks of Seagate Technology LLC or one of it s af filiate d compa nies 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 and one terabyte, or TB, equals one trillion
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 p urpo ses. Actual quan tities w ill vary based on vari ou s factors, including fi le
size, file format, features and application software. Seagate reserves the right to change,
without notice, product offerings or specifications.
• 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.
• 250 Gs operating 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).
®
Figure 1. Momentus 7200.1 PATA disc drive
2
Momentus 7200.1 PATA Product Manual, Rev. C
Momentus 7200.1 PATA Product Manual, Rev. C
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
ST910021A. ST980825A , ST96023A and ST94015A mode l drives.
2.1Specification summary
The specifications listed in this table are for quick reference. For details on specification measurement or
definition, see the appropriate section of this manual.
Seek power (typical)2.6 watts
Read/write power (typical)2.2 watts
Idle mode (typical)1.3 watts
Standby mode0.26 watts (typical)**
Sleep mode0.26 watts (typical)**
Voltage tolerance (including noise)+5V ± 5% / -8% startup
Ambient temperature5° to 55°C (operating)
Temperature gradient (°C per hour max)20°C (operating)
Relative humidity (noncondensing)5% to 90% (operating)
Relative humidity gradient30% per hour max
Wet bulb temperature (°C max)30°C (operating)
Altitude, operating–304.8 m to 3,048 m (–1000 ft to 10,000+ ft)
Altitude, nonoperating (below mean sea level,
max)
Shock, operating (Gs max at 2 msec)250
Shock, nonoperating (Gs max at 2 msec)800
Shock, nonoperating (Gs max at 1 msec)900
Shock, nonoperating (Gs max at 0.5 msec)400
Vibration, operating (max displacement may
Service life5 Y ears
Warranty5 Y e ars on distribution units.
*Duri ng pe riods of driv e idl e, some off lin e a c tivit y ma y occu r ac cord in g t o t he S.M .A. R. T. speci fic ation , w hich may increase ac ou sti c an d
power to operational levels.
**Typical notebooks 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.
–40° to 70°C (nonoperating)
30°C (nonoperating)
5% to 95% (nonoperating)
40°C (nonoperating)
–304.8 m to 12,192 m (–1,000 ft to 40,000+ ft)
1.0 Gs (0 to peak, 5–500 Hz)
5.0 Gs (0 to peak, 5–500 Hz)
2.8 (max)
3.1 (max)
600,000 software-controlled power on/off cycles
20,000 hard power on/off cycles
100,000 software-controlled power on/off cycles
20,000 hard power on/off cycles
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.
Momentus 7200.1 PATA Product Manual, Rev. C
5
2.2Formatted capacity
ModelFormatted capacityGuaranteed sectors Bytes per sector
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.
2.4Physical organization
ModelRead/write headsNumber of discs
ST910021A42
ST980825A42
ST96023A32
ST94015A21
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Momentus 7200.1 PATA Product Manual, Rev. C
2.5Recording and inter fac e technolo gy
TechnologySpecification
InterfaceParallel ATA
Recording methodRLL 0,11
Recording density BPI (bits/inch max)700,000
Track density TPI (tracks/inch max)114,000
Areal density (Gbits/inch2 max)81
Spindle speed (RPM) (± 0.2%)7,200
Internal data-transfer rate OD (Mbits/sec max)539
Sustained data transfer rate OD (Mbytes/sec max)45.8
I/O data-transfer rate (Mbytes/sec max)100 (Ultra DMA mode 5)
Interleave1:1
Cache buffer8 Mbytes (8,192 kbytes)
2.6Physical characteristics
Height(mm)
(inches)
Width(mm)
(inches)
Length(mm)
(inches)
Typical weight(grams)
(pounds)
9.5 +/-0.2
0.374 +/-0.0078
69.85 +/-0.25
2.75 +/-0.0098
100.2 +/-0.25
3.945 +/-0.0098
115
0.254
Momentus 7200.1 PATA Product Manual, Rev. C
7
2.7Seek time
Seek measurem ent s a re t ake n wi th nom inal po w er a t 25 °C amb ient temperature. All times are measured usi ng
drive diagnostics. The specifications 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)Read Write
Track-to-track1.52.0
Average10.512.5
Full-stroke22.024.0
Average latency4.2
*Measured in performance mode
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.
2.8Time to ready
Time to readyTypicalMax
Power-on to Ready (sec)48
St andby to Ready (sec)38
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