Page 3 - Contents
Momentus 5400.2 SATA Product Manual, Rev. C i Contents 1.0 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.1 About the Serial ATA interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....
Page 4 - ii
Page 5 - iii; List of Figures
Momentus 5400.2 SATA Product Manual, Rev. C iii List of Figures Figure 1. Momentus 5400.2 SATA disc drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Figure 2. Typical +5V only startup and operation current profile . . . . . . . . . . . . . . . . . . ....
Page 7 - Introduction; Momentus; Figure 1. Momentus 5400.2 SATA disc drive
Momentus 5400.2 SATA Product Manual, Rev. C 1 1.0 Introduction This manual describes the functional, mechanical and interface specifications for the following Seagate Momentus ® 5400.2 SATA model drives: • ST9120821AS • ST9100824AS • ST98823AS • ST96812AS • ST94813AS • ST93811AS These drives provide...
Page 8 - About the Serial ATA interface; ers or other configuration options.
2 Momentus 5400.2 SATA Product Manual, Rev. C 1.1 About 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 n...
Page 9 - Specification summary table; Drive specifications
Momentus 5400.2 SATA Product Manual, Rev. C 3 2.0 Drive 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 the ST9120821AS, ST...
Page 11 - Formatted capacity; Default logical geometry; LBA mode
Momentus 5400.2 SATA Product Manual, Rev. C 5 * 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. **Typical notebooks will pull power to the drive when entering S3 and S4; while in the...
Page 12 - Drive model
6 Momentus 5400.2 SATA Product Manual, Rev. C 2.4 Physical organization 2.5 Recording and interface technology 2.6 Physical characteristics Drive model Read/write heads Number of discs ST9120821AS 4 2 ST9100824AS 4 2 ST98823AS 3 2 ST96812AS 2 1 ST94813AS 2 1 ST93811AS 1 1 Interface Serial ATA (SATA)...
Page 13 - Seek time; Typical seek times; Read; Average; Time to ready
Momentus 5400.2 SATA Product Manual, Rev. C 7 2.7 Seek time Seek measurements are taken with nominal power at 25°C ambient temperature. All times are measured using drive diagnostics. The specifications in the table below are defined as follows: • Track-to-track seek time is an average of all possib...
Page 14 - Power specifications; • Read/write power and current; Power dissipation
8 Momentus 5400.2 SATA Product Manual, Rev. C 2.9 Power specifications The drive receives DC power (+5V) through a native SATA power connector. 2.9.1 Power consumption Power requirements for the drives are listed in the table on page 8. Typical power measurements are based on an average of drives te...
Page 15 - Figure 2. Typical +5V only startup and operation current profile; Deferred spinup; • SATA 1.0 design guides
Momentus 5400.2 SATA Product Manual, Rev. C 9 Figure 2. Typical +5V only startup and operation current profile 2.9.2 Deferred spinup Momentus 5400.2 SATA drives provide a deferred spinup feature which storage subsystem controllers can use to sequence disc drive initialization. This is beneficial to ...
Page 17 - Environmental specifications
Momentus 5400.2 SATA Product Manual, Rev. C 11 • Idle and Standby timers Each time the drive performs an Active function (read, write or seek), the standby timer is reinitialized and begins counting down from its specified delay times to zero. If the standby timer reaches zero before any drive activ...
Page 19 - Acoustics; Electromagnetic immunity; Drive level acoustics; Performance Seek; Radio frequency environments; Test
Momentus 5400.2 SATA Product Manual, Rev. C 13 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 ref...
Page 20 - Safety certification; Measurement type
14 Momentus 5400.2 SATA Product Manual, Rev. C 2.13 Reliability 2.14 Agency certification 2.14.1 Safety certification The drives are recognized in accordance with UL 1950 and CSA C22.2 (950) and meet all applicable sections of IEC950 and EN 60950 as tested by TUV North America. 2.14.2 Electromagneti...
Page 22 - Environmental protection; European Union Restriction of Hazardous Substances (RoHS); Corrosive environment
16 Momentus 5400.2 SATA Product Manual, Rev. C If necessary, you should consult your dealer or an experienced radio/television technician for additional sug-gestions. You may find helpful the following booklet prepared by the Federal Communications Commission: How to Identify and Resolve Radio-Telev...
Page 23 - Configuring and mounting the drive; Handling and static-discharge precautions; • Handle the drive only by its edges or frame.
Momentus 5400.2 SATA Product Manual, Rev. C 17 3.0 Configuring and mounting the drive This section contains the specifications and instructions for configuring and mounting the drive. 3.1 Handling and static-discharge precautions After unpacking, and before installation, the drive may be exposed to ...
Page 24 - Configuring the drive; Figure 3. Serial ATA connectors; Serial ATA cables and connectors; Figure 4. Attaching SATA cabling; Each cable is keyed to ensure correct orientation.
18 Momentus 5400.2 SATA Product Manual, Rev. C 3.2 Configuring the drive Each drive on the Serial ATA interface connects in a point-to-point configuration with the Serial ATA host adapter. There is no master/slave relationship because each drive is considered a master in a point-to-point relationshi...
Page 25 - Drive mounting; • Use only M3 UNC mounting screws.; Figure 5. Mounting dimensions—top, side and end view
Momentus 5400.2 SATA Product Manual, Rev. C 19 3.4 Drive mounting You can mount the drive using four screws in the side-mounting holes or four screws in the bottom-mounting holes. See Figure 5 for drive mounting dimensions. Follow these important mounting precautions when mount-ing the drive: • Allo...
Page 27 - Serial ATA connector pin definitions; Segment
Momentus 5400.2 SATA Product Manual, Rev. C 21 4.0 Serial ATA (SATA) 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 suppo...
Page 28 - Power
22 Momentus 5400.2 SATA Product Manual, Rev. C Notes: 1. All pins are in a single row, with a 1.27 mm (0.050”) pitch. 2. The comments on the mating sequence apply to the case of backplane blindmate connector only. In this case, the mating sequences are: • the ground pins P4 and P12. • the pre-charge...
Page 29 - Supported ATA commands; Command name
Momentus 5400.2 SATA Product Manual, Rev. C 23 4.3 Supported ATA 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. comman...
Page 32 - Identify Device command; The Identify Device command (command code EC; Word; xxxx
26 Momentus 5400.2 SATA Product Manual, Rev. C 4.3.1 Identify Device command The Identify Device command (command code EC H ) transfers information about the drive to the host following power up. The data is organized as a single 512-byte block of data, whose contents are shown in the table on page ...
Page 34 - Bit
28 Momentus 5400.2 SATA Product Manual, Rev. C 93 Hardware reset value (see description following this table) xxxx H 94 Auto acoustic management setting xxxx H 95–99 ATA-reserved 0000 H 100–103 Total number of user-addressable LBA sectors available (see Section 2.2 for related information) These wor...
Page 35 - Set Features command; Set Features command values
Momentus 5400.2 SATA Product Manual, Rev. C 29 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 inter-rupt. If ...
Page 36 - Code in features register
30 Momentus 5400.2 SATA Product Manual, Rev. C 4.3.3 S.M.A.R.T. commands S.M.A.R.T. provides near-term failure prediction for disc drives. When S.M.A.R.T. is enabled, the drive moni-tors predetermined drive attributes that are susceptible to degradation over time. If self-monitoring determines that ...
Page 37 - Seagate Technology support services; Internet; For information regarding Seagate products and services, visit; Seagate Service Centers; Presales Support; Seagate technical support is available to assist you online at
Momentus 5400.2 SATA Product Manual, Rev. C 31 5.0 Seagate Technology support services Internet For information regarding Seagate products and services, visit www.seagate.com . Worldwide support is available 24 hours daily by email for your questions. Presales Support: [email protected] Technical...
Page 38 - Customer Service Operations; Warranty Service; USA/Canada/Latin America support services; Direct dial; and Mexico; Europe, the Middle East and Africa Support Services
32 Momentus 5400.2 SATA Product Manual, Rev. C Customer Service Operations Warranty Service Seagate offers worldwide customer support for Seagate products. Seagate distributors, OEMs and other direct customers should contact their Seagate Customer Service Operations (CSO) representative for warranty...
Page 39 - Index
Momentus 5400.2 SATA Product Manual, Rev. C 33 Index A ACA 15 acoustics 4 , 13 Active mode 10 Address 23 Agency certification 14 Altitude 11 Altitude, nonoperating 4 Altitude, operating 4 Ambient temperature 4 , 11 ambient temperature 7 Annualized Failure Rate (AFR) 4 Areal density 3 , 6 ATA command...
