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5400-RPM Standard models Free-fall sensor models ST9750423ASG ST9750423AS ST9750420ASG ST9750422AS ST9640423ASG ST9750420AS ST9500423ASG ST9750424AS * ST9640424AS ST9640423AS ST9640422AS * ST9500424AS ST9500423AS ST9500428AS * 100627937 Rev. F December 2012 * specifications for these models are available from Seagate technical support www.seagate.com/www/en-us/about/contact_us/...
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Publication number: 100627937, Rev. F December 2012 Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC in the United States and/or other countries. Momentus and SeaTools are either trademarks or registered trademarks of Seagate Technology LLC or one of its affiliated companies in the United States and/or other countries.
Global Support Services telephone numbers & business hours • Authorized Service Centers For information regarding Warranty Support, visit http://www.seagate.com/support/warranty-and-returns For information regarding data recovery services, visit http://www.seagate.com/services-software/data-recovery-services/ For Seagate OEM and Distribution partner portal, visit https://direct.seagate.com/portal/system For Seagate reseller portal, visit http://spp.seagate.com Momentus Product Manual, Rev. F...
NTRODUCTION This manual describes the functional, mechanical and interface specifications for the following Seagate ® Momentus model drives: TANDARD MODELS ROTECTION MODELS ST9750423AS ST9750423ASG ST9750422AS ST9750420AS ST9750420ASG ST9640424AS ST9640423AS ST9640423ASG ST9500424AS ST9500423AS ST9500423ASG These drives provide the following key features: •...
BOUT THE ERIAL 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 normally necessary to set any jumpers or other configuration options.
The specifications listed in this table are for quick reference. For details on specification measurement or definition, see the appropriate section of this manual. Table 1 Drive specifications for 750, 640 and 500 GB models ST9640424AS ST9750422AS ST9500424AS ST9750423AS ST9640423AS ST9750420AS ST9500423AS Drive specification ST9750423ASG...
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Table 1 Drive specifications for 750, 640 and 500 GB models ST9640424AS ST9750422AS ST9500424AS ST9750423AS ST9640423AS ST9750420AS ST9500423AS Drive specification ST9750423ASG ST9640423ASG ST9750420ASG ST9500423ASG Altitude, nonoperating –304.8 m to 12,192 m (–1000 ft to 40,000 (meters below mean sea level, max)
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. HYSICAL ORGANIZATION RIVE MODEL WRITE HEADS UMBER OF DISCS ST9750423AS, ST9750423ASG, ST9750422AS, ST9750420AS and ST9750420ASG ST9640424AS, ST9640423AS and ST9640423ASG ST9500424AS, ST9500423AS and ST9500423ASG OMENTUS RODUCT...
27.0 ST9640423AS and ST9640423ASG models only) Full-stroke (all other models) 22.0 Average latency (ST9750423AS, ST9750423ASG, ST9640424AS, ST9640423AS and ST9640423ASG models only) Average latency (all other models) 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 the noted values.
• 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 Table 3 DC power ST9750423AS, ST9750423ASG, ST9750422AS, ST9750420AS, ST9640424AS, ST9640423AS, ST9750420ASG, ST9500424AS, and ST9640423ASG, ST9500423AS and ST9500423ASG (25°...
2.9.1.1 Typical current profile Figure 1. Typical +5V only startup and operation current profile (7200-RPM models) Figure 2. Typical +5V only startup and operation current profile (5400-RPM models) OMENTUS RODUCT ANUAL...
2.9.2 Conducted noise Input noise ripple is measured at the host system power supply across an equivalent 15-ohm resistive load on the +5V line. Using 5V power, the drive is expected to operate with a maximum of 100mV peak-to-peak square-wave injected noise at up to 10 MHz. Note.
2.10 NVIRONMENTAL SPECIFICATIONS This section provides the temperature, humidity, shock, and vibration specifications for Momentus drives. 2.10.1 Ambient temperature Ambient temperature is defined as the temperature of the environment immediately surrounding the drive. Above 1000 feet (305 meters), the maximum temperature is derated linearly by 1°C every 1000 feet. Operating: 0°C to 60°C (32°F to 140°F) Nonoperating:...
2.10.6 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. Note. Additional shock protection is provided by the Free Fall Protection feature on ST9750423ASG, ST9750420ASG, ST9640423ASG and ST9500423ASG models.
Seagate follows the ECMA-74 standards for measurement and identification of PDTs. An exception to this process is the use of the absolute threshold of hearing. Seagate uses the lower limit for the threshold curve* to discern tone audibility and to compensate for the inaudible components of sound prior to computation of tone ratios according to Annex D of the ECMA-74 standards.
To determine the warranty for a specific drive, use a web browser to access the following web page: http://www.seagate.com/support/warranty-and-returns From this page, click on the “Verify Your Warranty” link. You will be asked to pro- vide the drive serial number, model number (or part number) and country of pur- chase.
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.
Users should use caution exposing any electronic components to uncontrolled chemical pollutants and corrosive chemicals as electronic drive component reliability can be affected by the installation environment. The silver, copper, nickel and gold films used in Seagate products are especially sensitive to the presence of sulfide, chloride, and nitrate contaminants. Sulfur is found to be the most damaging.
ONFIGURING AND MOUNTING THE DRIVE This section contains the specifications and instructions for configuring and mounting the drive. ANDLING AND STATIC DISCHARGE PRECAUTIONS After unpacking, and before installation, the drive may be exposed to potential handling and electrostatic discharge (ESD) hazards. Observe the following standard handling and static-discharge precautions: Caution: •...
ERIAL CABLES AND CONNECTORS The Serial ATA interface cable consists of four conductors in two differential pairs, plus three ground connections. The cable size may be 30 to 26 AWG with a maximum length of one meter (39.37 inches). See for connector pin definitions.
RIVE MOUNTING You can mount the drive using four screws in the side-mounting holes or four screws in the bottom-mounting holes. See Figure Figure 5. for drive mounting dimensions. Follow these important mounting precautions when mounting the drive: • Allow a minimum clearance of 0.030 inches (0.76 mm) around the entire perimeter of the drive for cooling. •...
ATA (SATA) ERIAL INTERFACE These drives use the industry-standard Serial ATA interface that supports FIS data transfers. It supports ATA programmed input/output (PIO) modes 0–4; multiword DMA modes 0–2, and Ultra DMA modes 0–6. The drive also supports the use of the IORDY signal to provide reliable high-speed data transfers.
ERIAL DEVICE PLUG CONNECTOR PIN DEFINITIONS summarizes the signals on the Serial ATA interface and power connectors. Table 7 Table 7 Serial ATA connector pin definitions EGMENT UNCTION EFINITION Ground 2nd mate Differential signal pair A from Phy Ground 2nd mate Differential signal pair B from Phy Signal Ground...
UPPORTED COMMANDS The following table lists Serial ATA standard commands that the drive supports. For a detailed description of the ATA commands, refer to the Serial ATA: High Speed Serialized AT Attachment specification. See “S.M.A.R.T. commands” on page 30.for details and subcommands used in the S.M.A.R.T.
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OMMAND NAME OMMAND CODE IN HEX S.M.A.R.T. Enable Operations B0h/D8h S.M.A.R.T. Enable/Disable Auto Offline B0h/DBh S.M.A.R.T. Enable One Attribute Modification B0h/E0h S.M.A.R.T. Execute Offline B0h/D4h S.M.A.R.T. Free Fall Protection Host Interface S.M.A.R.T. Read Attribute Thresholds B0h/D1h S.M.A.R.T. Read Data B0h/D0h S.M.A.R.T.
0004 Obsolete 0000 23–26 Firmware revision (8 ASCII character string, padded with blanks to end of x.xx string) 27–46 Drive model number: (40 ASCII characters, padded with blanks to end of ST9750423AS string) ST9750423ASG ST9750422AS ST9750420AS ST9750420ASG ST9640424AS ST9640423AS ST9640423ASG...
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Number of sectors transferred during a Read Multiple or Write Multiple com- xxxx mand 60–61 Total number of user-addressable sectors ST9750423AS = 0FFFFFFFh ST9750423ASG = 0FFFFFFFh This field contains a value that is one greater than the total number of user- ST9750422AS = 0FFFFFFFh addressable sectors.
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0000 98–99 Streaming Performance Granularity 0000 100–103 Total number of user-addressable LBA sectors available ST9750423AS = 1,465,149,168 ST9750423ASG = 1,465,149,168 (see Section 2.2 for related information) ST9750422AS = 1,465,149,168 These words are required for drives that support the 48-bit addressing fea-...
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Ultra DMA mode 0 is supported. Ultra DMA mode 1 is supported. Ultra DMA mode 2 is supported. Ultra DMA mode 3 is supported. Ultra DMA mode 4 is supported. Ultra DMA mode 5 is supported Ultra DMA mode 6 is supported Ultra DMA mode 0 is currently active.
4.3.2 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 interrupt. If the value in the register does not represent a feature that the drive supports, the command is aborted.
) that eliminates unnecessary drive returns. The diagnostic software ships with all new drives and is also available at: http://www.seagate.com/support/downloads/seatools/. 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. to enable this feature.
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S.M.A.R.T. implementation 23 Track-to-track seek time 4 Safety certification 16 TUV North America 16 SATA 7 screws 13 Seagate Technology Support Services 1 UL 1950 16 sector 6 sectors 6 Sectors per track 6 Vibration 13 Security Disable Password 24...
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Seagate Technology LLC 10200 South De Anza Boulevard, Cupertino, California 95014, United States, 408-658-1000 ASIA/PACIFIC Seagate Singapore International Headquarters Pte. Ltd. 7000 Ang Mo Kio Avenue 5, Singapore 569877, 65-6485-3888 EUROPE, MIDDLE EAST AND AFRICA Seagate Technology SAS 16-18 rue du Dôme, 92100 Boulogne-Billancourt, France, 33 1-4186 10 00 Publication Number: 100627937, Rev.