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.
Momentus 5400.3 SATA Removable Drive Cartridge Product Manual, Rev. D
Momentus 5400.3 SATA Removable Drive Cartridge Product Manual, Rev. D
1
1.0Introduction
This manual describes the functional, mechanical and interface specifications for the 160GB Seagate
Momentus® 5400.3 SATA Removable Drive Cartridge (RDC).
These drives provide the following key features:
• Reliable--nonrecoverable read error rate of 1 in 1014 bits read.
• Rugged--can survive up to 1 M drop for all axes and each corner.
• Removable drive cartridges for convenience and portability.
• 5,400 RPM spindle speed.
• 8 Mbyte buffer .
• High instantaneous (burst) data-transfer rates (up to 150 Mbytes per second).
• 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.
• The 3D Defense System ™, which in clu des Drive D efense, Dat a Defen se and D iagnost ic De fense, of fer s 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.
Figure 1. Momentus 5400.3 SATA Removable Drive Cartridge
2
Momentus 5400.3 SATA Removable Drive Cartridge Product Manual, Rev. D
1.1About the Serial ATA interface
The Serial ATA interface provides several advantages over the traditional (parallel) ATA interface. The primary
advantages include:
• Easy installation and configuration with true plug-and-play connectivity. It is not necessary to set any jumpers or other configuration options.
• Thinner and more flexible cabling for improved enclosure airflow and ease of installation.
• Scalability to higher performance levels.
In addition, Serial ATA makes the transition from parallel ATA easy by providing legacy sof twar e suppo rt. S erial
ATA was designed to allow you to install a Serial ATA host adapter and Serial ATA disc drive in your current
system and expect all of your existing applications to work as normal.
The Serial ATA interface connects each disc drive in a point-to-point configuration with the S erial ATA host
adapter. There is no master/slave relationship with Serial ATA devices like there is with parallel ATA. If two
drives are attached on one Serial ATA host adapter, the host operating system views the two devices as if they
were both “masters” on two separate ports. This essentially means both drives behave as if they ar e Device 0
(master) devices.
Note.The host adapter may, optionally, emulate a master/slave environment to host software where two
devices on separate Serial ATA ports are represented to host software as a Device 0 (master) and
Device 1 (slave) accessed at the same set of host bus addresses. A host adapter that emulates a
master/slave environment manages two sets of shadow registers. This is not a typical Serial ATA
environment.
The Serial ATA host adapter and drive share the function of emulating parallel ATA device behavior to provide
backward compatibility with existing host systems and software. The Command and Control Block registers,
PIO and DMA data transfers, resets, and interrupts are all emulated.
The Serial ATA host adapter cont ains a set of regi ste rs that sha dow the conte nt s of the trad i tional devi ce r egisters, referred to as the Shadow Register Block. All Serial ATA devices behave like Device 0 devices. For additional information about how Serial ATA emulates parallel ATA, refer to the “Serial ATA: High Speed Serialized
AT Attachment” specification. The specification can be downloaded from http://www.serialata.org.
Momentus 5400.3 SATA Removable Drive Cartridge Product Manual, Rev. D
3
2.0Removable Drive Cartridge specifications
Unless otherwise noted, all specifications are measured under ambient conditions, at 25°C, and nominal
power . F or co nvenience, the words and phrases RDC, removable drive cartridge, drive, and this drive are used
throughout this manual to indicate the 160GB Momentus 5400.3 SATA Removable Drive Cartridge (RDC).
2.1Specification summary
The specifications listed below are for quick reference. For details on specification measurement or definition,
see the appropriate section of this manual.
Formatted Gbytes (512 bytes/sector)160
Guaranteed sectors312,581,808
Bytes per sector512
Default sectors per track63
Default read/write heads16
Default cylinders16,383
Physical read/write heads4
Discs2
Recording density in BPI (bits/inch max)870k
Track density TPI (tracks/inch max)150k
Areal density (Gbits/inch2 max)132
Spindle speed (RPM)5,400
Internal transfer rate (Mbits/sec max)352
I/O data transfer rate (Mbytes/sec max)150
A TA data-transfer modes supportedS ATA 1.0, Serial AT A Revision 2.5 Specification; PIO modes
Cache buffer 8 Mbytes
Height (max)24.50 +/- 0.2 mm (0.965 +/- .0078 inches)
Width (max)85.7 +/- 0.3 mm (3.374 +/- 0.0118 inches)
Length (max)111.88 +/- 0.3 mm (4.40 +/- 0.0118 inches)
Weight (typical)170 grams +/- 3 grams (0.3747 lbs +/- 0.0066 lbs)
Average latency (msec)5.6
Power-on to ready (typical)3.0 sec
Standby to ready (typical)3.0 sec
Startup current, (typical, peak)+5V: 1.0A
Track-to-track seek time (msec typical)1.0 (read), 1.5 (write)
Average seek, read (msec typical)12.5
Average seek, write (msec typical)14.5
0–4; Multiword DMA modes 0–2; UDMA modes 0–6
4
Momentus 5400.3 SATA Removable Drive Cartridge Product Manual, Rev. D
Seek power (typical)2.0 watts
Read/write power (typical)Read: 1.90 watts; Write: 1.8 watts
Idle mode, low power (typical)0.6 watts
Standby mode (typical)0.2 watts**
Sleep mode (typical)0.2 watts**
Voltage tolerance (including noise)+5.0V ± 5%
Ambient temperature 5° to 55°C (operating), –40° to 70°C (nonoperating)
Temperature gradient
(°C per hour max)
Relative humidity5% to 90% (operating)
Relative humidity gradient30% per hour max
Wet bulb temperature
(°C max)
Altitude, operating–304.8 m to 3,048 m
Altitude, nonoperating (meters below mean sea level, max)–304.8 m to 12,192 m
Shock, operating (Gs max at 2 msec)250
Shock, nonoperating (Gs max at 2 msec)1,500
Vibration, operating0.5 G (0 to peak, 5–500 Hz)
Vibration, nonoperating2.22 Grms (5-500 Hz random), 30 min, each axis
Drive acoustics, sound power (bels)
Idle*<3.0 bels (typ)
Supports Hotplug operation per Serial ATA Revision 2.5 specificationY es (requires COMPRESET from host after a hotplug event)
20°C (operating)
30°C (nonoperating)
5% to 95% (nonoperating)
30 (operating)
40 (nonoperating)
(–1000 ft to 10,000+ ft)
(–1000 ft to 40,000+ ft)
Frequency (Hz); 5-300; Slope (dB/Oct.);
Power Spectral Density (PSD) (G2/Hz) +/- 6dB: 0.01
<3.25 bels (max)
<3.6 bels (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 Y our Warranty” link. You
will be asked to provide the drive ser ial number, model number (or part number) and country of purchase. The system
will display the warranty information for your drive.
600,000 software-controlled power on/off cycles
20,000 hard power on/off cycles
600,000 software-controlled power on/off cycles
20,000 hard power on/off cycles
*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 acoustic 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.
Momentus 5400.3 SATA Removable Drive Cartridge Product Manual, Rev. D
5
2.2Formatted ca pacity
Formatted capacityGuaranteed sectors Bytes per sector
160 Gbytes312,581,808512
2.2.1LBA 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.
See Section 4.3.1, "Identify Device command" (words 60-61 and 100-103) for additional information about 48bit addressing support of drives with capacities over 137 Gbytes.
2.3Default logi cal geometr y
CylindersRead/write headsSectors per track
16,3831663
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.
2.4Physical organization
Drive modelRead/write headsNumber of discs
160GB with ST9160821AS42
2.5Recording and inter f ac e te ch nology
InterfaceSerial ATA (SATA)
Recording methodPerpendicular
Recording density BPI (bits/inch max)870k
Track density TPI (tracks/inch max)150k
Areal density (Gbits/inch2 max)132
Spindle speed (RPM) (± 0.2%)5,400
Maximu m Internal tr a n sfer rate (M bits/sec)352
I/O data-transfer rate (Mbytes/sec max)150
Interleave1:1
Cache buffer8 Mbytes (8,192 kbytes)
6
Momentus 5400.3 SATA Removable Drive Cartridge Product Manual, Rev. D
2.6Physical characteristics
Height(mm)
(inches)
Width(mm)
(inches)
Length(mm)
(inches)
Typical weight(grams)
(pounds)
24.50 +/-0.2
0.965 +/-0.0078
85.70 +/-0.3
3.374 +/-0.0118
111.88 +/-0.3
4.40 +/-0.0118
170 +/- 3 g
0.3747 +/- 0.0066
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 in the table 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.
T yp ical seek times (msec)Read Write
Track-to-track1.01.5
Average12.514.5
Full-stroke22.024.0
Average latency5.565.56
Note.These drives ar e de si gned to consisten tl y me et t he se ek t imes r epr esente d in thi s manu al. P hysical
seeks, regardless of mode (such as track-to-track and average), are expected to meet 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.
2.8Start/stop times
Time to readyTypical
Power-on to Ready (sec)3.08.0
St andby to Ready (sec)3.08.0
Max @ 25°C
Momentus 5400.3 SATA Removable Drive Cartridge Product Manual, Rev. D
7
2.9Power specifications
The drive receives DC power (+5V) through a native SATA power connector.
2.9.1Power consumption
Power requiremen ts for the dr iv es are listed i n the ta ble on p age 7. Typical power measurements are ba sed on
an average of drives tested, under nominal conditions, at 25°C ambient temperature, after 25 minutes of operation.
• Spinup power
Spinup power is measured from the time of power-on to the time that the drive spindle re aches operating speed.
• Seek mode
During seek mod e, the read /write actuator arm move s toward a spe cific positi on on the d isc surface and does
not execute a read or write operati on. Servo ele ctronics ar e acti ve. Seek mode power is mea sure d 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