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Seagate Technology LLC. Other product names are registered trade- marks or trademarks of their owners. Seagate reserves the right to change, without notice, product offerings or specifications. No part of this publication may be reproduced in any form without written permission of Seagate Technology LLC.
Introduction This manual describes the functional, mechanical and interface specifications for the following Seagate Momentus™ 4200 N-Lite drive: • ST940110A This drive provides the following key features: • 4,200-RPM-class performance spindle speed and 2-Mbyte buffer combine for superior performance. • Quiet operation. Fluid Dynamic Bearing (FDB) motor.
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 ST940110A model drives. Specification summary The specifications listed in this table are for quick reference. For details on specification measurement or defi- nition, see the appropriate section of this manual.
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**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. ST940110A 14.0 22 (typical); 26 (max) 2.4 watts...
Formatted capacity Model Formatted capacity ST940110A 40 Gbytes Default logical geometry Cylinders Read/write heads 16,383 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.
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. Time to ready Time to ready Typical Power-on to Ready (sec) Standby to Ready (sec) Power specifications The drive receives DC power (+5V) through the interface connector.
Table 2: DC power Power dissipation (watts) Average (watts, 25° C) Seeking Read Write Standby 0.36 Sleep 0.36 *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. 2.9.1.1 Typical current profile Amps...
2.9.4 Power-management modes The drive provides programmable power management to provide greater energy efficiency. In most systems, you can control power management through the system setup program. The drive features the following power-management modes: Table 3: Power management modes Power modes Heads Active (operating) Tracking...
2.10 Environmental specifications 2.10.1 Ambient temperature Ambient temperature is defined as the temperature of the environment immediately surrounding the drive. Actual drive case temperature should not exceed 65°C (149°F) within the operating ambient conditions. Above 1,000 feet (305 meters), the maximum temperature is derated linearly by 1°C every 1000 feet. Operating 5°...
2.10.5 Shock All shock specifications assume that the drive is mounted securely with the input shock applied at the drive mounting screws. Shock may be applied in the X, Y or Z axis. 2.10.5.1 Operating shock These drives comply with the performance levels specified in this document when subjected to a maximum operating shock of 100 Gs based on half-sine shock pulses of 2 msec.
2.11 Acoustics Drive acoustics are measured as overall A-weighted acoustic sound power levels (no pure tones). All mea- surements are consistent with ISO document 7779. Sound power measurements are taken under essentially free-field conditions over a reflecting plane. For all tests, the drive is oriented with the cover facing upward. Note.
Information Technology Equipment (ITE). Emission levels are defined by EN 55022, Class B and the immunity levels are defined by EN 55024. Seagate uses an independent laboratory to confirm compliance with the EC directives specified in the previous paragraph. Drives are tested in representative end-user systems. Although CE-marked Seagate drives comply with the directives when used in the test systems, we cannot guarantee that all systems will comply with the directives.
As a subassembly, no Federal Communications Commission verification or certification of the device is required. Seagate Technology LLC has tested this device in enclosures as described above to ensure that the total assembly (enclosure, disc drive, motherboard, power supply, etc.) does comply with the limits for a Class B computing device, pursuant to Subpart J, Part 15 of the FCC rules.
Configuring and mounting the drive This section contains the specifications and instructions for configuring and mounting the drive. Handling and static discharge precautions After unpacking, and before installation, the drive may be exposed to potential handling and electrostatic dis- charge (ESD) hazards. Observe the following standard handling and static-discharge precautions: Caution: •...
3.2.2 Cable-select option Computers that use cable select determine the master and slave drives by selecting or deselecting pin 28, CSEL, on the interface bus. Master and slave drives are determined by their physical position on the cable. To enable cable select, set a jumper as shown in Figure 3. Refer to your computer manual to determine whether your computer supports this option.
ATA interface These drives use the industry-standard ATA task file interface that supports 16-bit data transfers. It supports ATA programmed input/output (PIO) modes 0–4; multiword DMA modes 0–2, and Ultra DMA modes 0–5. The drive also supports the use of the IORDY signal to provide reliable high-speed data transfers. For detailed information about the ATA interface, refer to the draft of AT Attachment with Packet Interface Extension (ATA/ATAPI-6), NCITS T13 1410D, subsequently referred to as the Draft ATA-6 Standard.
4.1.1 Supported ATA commands The following table lists ATA-standard commands that the drive supports. For a detailed description of the ATA commands, refer to the Draft ATA-6 Standard. See “S.M.A.R.T. commands” on page 23. for details and sub- commands used in the S.M.A.R.T. implementation. Table 7: Supported commands Command name...
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Table 7: Supported commands (Continued) Command name Security Unlock Seek Set Drive Parameters Set Features Set Max Address Note: Individual Set Max com- mands are identified by the value placed in the Set Max Features register as defined to the right. Set Multiple Mode Sleep S.M.A.R.T.
) transfers information about the drive to the host following = none) Momentus 4200 N-Lite Product Manual, Rev. A Value 0C5A 16,383 0000 0000 0000 003F 0000 ASCII 0000 0400 0000 x.xx ST940110A 8010 0000 2F00 0000 0200 0200 0007 xxxx...
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Hardware reset value (see description following this table) Auto acoustic management setting 95–127 ATA-reserved Security status 129– Seagate-reserved Momentus 4200 N-Lite Product Manual, Rev. A Value xxxx xxxx xxxx xxxx ST940110A = 78,140,160 0000 xx07 0003 0078 0078 00F0 0078 0000 0000 0000 007E 0000...
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Word Description 160– ATA-reserved Integrity word See the bit descriptions below for words 63, 88, 93 and 94 of the Identify Drive data. Description (if bit is set to 1) Word 63 Multiword DMA mode 0 is supported. Multiword DMA mode 1 is supported. Multiword DMA mode 2 is supported.
4.1.3 Set Features command This command controls the implementation of various features that the drive supports. When the drive receives this command, it sets BSY, checks the contents of the Features register, clears BSY and generates an inter- rupt. If the value in the register does not represent a feature that the drive supports, the command is aborted. Power-on default has the read look-ahead and write caching features enabled.
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SeaTools diagnostic software activates a built-in drive self-test (DST S.M.A.R.T. command for D4 nates unnecessary drive returns. The diagnostic software ships with all new drives and is also available at: http://seatools.seagate.com. This drive is shipped with S.M.A.R.T. features disabled. You must have a recent BIOS or software package that supports S.M.A.R.T.
+1-405-324-4770. Presales, Technical Support and Warranty Service Presales Support Our Presales Support staff can help you determine which Seagate products are best suited for your specific application or computer system. Technical Support If you need help installing your drive, consult your system's documentation or contact the dealer's support ser- vices department for assistance specific to your system.
Seagate service center representative for warranty-related issues. Resellers or end users of drive products should contact their place of purchase or one of the Seagate warranty service cen- ters for assistance. Have your drive’s “ST” model number and serial number available.
USA/Canada/Latin America Support Services Presales Support Call Center Toll-free Americas 1-877-271-3285 Technical Support Call Center Toll-free Americas 1-800-SEAGATE Warranty Service Call Center Toll-free USA, Mexico and 1-800-468-3472 Latin America Canada Memofix 1-800-636-6349 Brazil MA Centro de Serviços — Hours of operation are 8:00 .
European Support Services For presales and technical support in Europe, dial the toll-free number for your specific location. If your location is not listed here, dial our presales and technical support call center at +1-405-324-4714 from 8:00 11:45 . and 1:00 .
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Asia/Pacific Support Services For Asia/Pacific presales and technical support, dial the toll-free number for your specific location. The Asia/ Pacific toll-free numbers are available from 6:00 ern time) Monday through Friday, except as noted. If your location is not listed here, direct dial one of our tech- nical support locations.
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Index Numerics 3D Defense System 1 acoustics 12 Active mode 9 adio frequency (RF) 12 agency certification (regulatory) 13 altitude 10 ambient conditions 3 ambient temperature 6 areal density 1 ATA interface 17 ATA-standard commands 18 Australian C-Tick 14 autodetection 1 average seek time 6 BPI 6 buffer 1...
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Seeking 8 Service Life 13 servo electronics 7 Set Features 19 Set Features command 23 Set Max 19 Set Multiple Mode 19 shock 11 signals 17 single-track seeks 6 Sleep 8 Sleep mode 9 sound 12 specifications 3 spindle speed 6 Spinup 7 spinup power 7 Standby 8...
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