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Product Manual Momentus ® 7200-RPM 5400-RPM 100627937 Re v . C January 2011 St anda rd models ST9750423AS ST9750422AS ST9750420AS ST9750424AS * ST9640424AS ST9640423AS ST9640422AS * ST9500424AS ST950.
Revision history © 201 1 Seagate T echnology LLC. All right s reserved. Publication number: 1006 27937, Rev . C, January 201 1 Seagate, Seagate T echnology and the W ave logo are registered trademarks of Seaga te T echnology LLC in the United S tates and/or other countries.
Momentus Product Manua l, Rev. C i Contents 1.0 Seagate Technology support services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.0 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ii Momentus Product Manu al, Rev. C.
Momentus Product Manua l, Rev. C iii List of Figures Figure 1. Typical +5V only startup and operation curren t profile (7200-RPM models) . . . . . . . . . . . . . 10 Figure 2. Typical +5V only startup and operation curren t profile (5400-RPM models) .
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Momentus Product Manua l, Rev. C 1 1.0 Seagate T echnology support services SEAGA TE ONLINE SUPPORT and SERVICES For information regarding pr oducts and services, visit http://www .
2 Momentus Product Manu al, Rev. C 2.0 Introduction This manual describes the functiona l, mechanical an d interface specifications for the following Seagate Momentus ® model dr ives: These drives pr.
Momentus Product Manua l, Rev. C 3 2.1 About the Serial A T A interface The Serial A T A interface provides several ad vantages over the traditional (p arallel) A T A interf ace. The p rimary advantages include : • Easy installation and configur ation with true plug-and-p lay connectivit y .
4 Momentus Product Manu al, Rev. C 3.0 Drive specifications Unless otherwise noted, all specific ations are measured und er ambient conditions, at 25°C, and nominal power . 3.1 Spec ification summary t able The specifications listed in this t able are for quick re ference.
Momentus Product Manua l, Rev. C 5 * On e Gbyte equals one billion bytes when referring to hard driv e capacity. Accessible capacity may vary depending on operating environment and formatting. **During periods of drive idle, some offlin e activity may occur acco rding to the S.
6 Momentus Product Ma nual, Rev. C 3.2 Formatted cap acity Model Formatted cap acity* Guaranteed secto rs Bytes per sector (log ical) ST9750423AS, ST97504 23ASG, ST9750422AS, ST97504 20AS and ST975042.
Momentus Product Manua l, Rev. C 7 3.5 Recording and interface tec hnology Interface Serial A T A (SA T A) Recording method Perpendicular Recording density BPI (bits/in max) 1,586k T rack density TPI (tracks/in max) 341k Areal density (Gb/in 2 max) 541 S pindle speed (RPM) ( ± 0.
8 Momentus Product Ma nual, Rev. C 3.7 Seek time Seek measurement s are t aken with nominal p ower at 25°C ambient tempera ture. All times a re measur ed using drive diagnostics. The specifications in th e table below are defined as follows: • T rack-to-track seek time is an average of al l possible single-track seeks in both direction s .
Momentus Product Manua l, Rev. C 9 3.9 Power specifications The drive receives DC power (+5V) thr ough a native SA T A power connector . 3.9.1 Power consumption Power requirement s for the drives are listed in the t abl e on p a ge 9.
10 Momentus Product Ma nual, Rev. C 3.9.1.1 T ypical current prof ile Figure 1. T ypical +5V only startup and op eratio n current profile (7200-RPM mode ls ) Figure 2.
Momentus Product Manua l, Rev. C 11 3.9.2 Conducted noise Input noise ripp le is meas ured at the host sys tem po we r supply across an equivalent 15-ohm resistive load on the +5V line. Using 5V power , th e drive is ex pected to oper ate with a m aximum of 100mV peak-to -peak squa re-wave injected nois e at up to 10 MHz.
12 Momentus Product Manu al, Rev. C 3.9.4 Power-man agement mo des The drive provides prog rammable power man agement to provide greater energy effici ency .
Momentus Product Manua l, Rev. C 13 3.10 Environment al specifications This section provides the tempe r ature, humidity , shoc k, and vibration specificat ions for Momentus drives. 3.10.1 Ambient tempe rature Ambient temperature is defined as the temperature of th e envir onment immediately surrounding the drive.
14 Momentus Product Manu al, Rev. C 3.10.6 Shock All shock specifications assu me that the drive is mounted secu rely with the input shock applied at the drive mounting screws.
Momentus Product Manua l, Rev. C 15 3.1 1 Acoustics Drive emission of so und is measured consistent with the ECMA-74 an d its referenced standards. T esting is conducted at room temper ature (approximately 25 ° C). Emission levels are reported as the tot al A-weighted sound power levers for steady st ate, idle, and active seeks modes of operation.
16 Momentus Product Ma nual, Rev. C 3.13 Reliability Measurement type S pecification Nonrecoverable read errors 1 per 10 14 bits read, max. Annualized Fa ilure Rate (AFR) 0.
Momentus Product Manua l, Rev. C 17 Korean RRL If these drives have the Korean Communications Commission (KCC) logo , they comply with paragraph 1 of Article 1 1 of the El ectromagnetic Compatib ility.
18 Momentus Product Ma nual, Rev. C 3.15 Environment al protection Seagate designs it s products to meet en vironmental pr otection requirement s worldwide, including regulations restricting certain chemical substances.
Momentus Product Manua l, Rev. C 19 4.0 Configuring and mounting the drive This section contains the specif ications an d instructions for configuring and mounting the drive.
20 Momentus Product Manu al, Rev. C 4.2 Configuring the drive Each drive on th e Serial A T A interface connect s in a point-to-point configuration with the Serial A T A host adapter . There is no master/slave rela tionship because each drive is consid ered a master in a point-to-poin t relationships.
Momentus Product Manua l, Rev. C 21 4.4 Drive mounting Y ou can mount the drive using four screws in the side-mo un ting holes or four screws in the bottom-mounting holes. See Figure 5 for drive mounting dimensions. Follow these important moun ting precautio ns when mount - ing the drive: • Allow a minimum clearance of 0.
22 Momentus Product Manu al, Rev. C 5.0 Serial A T A (SA T A) interface These drives use the industry-s tandard Ser ial A T A interfac e that supp orts FIS data transfers. It supp orts A T A programmed inpu t/output (PIO) mod es 0–4; multiword DMA modes 0–2 , and Ultra DMA mo des 0–6.
Momentus Product Manua l, Rev. C 23 5.2 Serial A T A device plug conn ector pin definitions T able 7 summarizes the signals on the Seri al A T A interface and power connecto rs. 1. All pins are in a single row , with a 1.27 mm (0.050”) pitch. 2. The comment s on the mating sequence a pply to the case of backplane blindmate connector only .
24 Momentus Product Manu al, Rev. C 5.3 Supported A T A commands The following t able list s Serial A T A standard comman ds that the drive supports. For a det ailed description of the A T A commands, refer to the Serial A T A: High S peed Serialized A T Attachment specification .
Momentus Product Manua l, Rev. C 25 S.M.A.R.T . Enabl e/Disabl e Autosave B0h/D2h S.M.A.R.T . Enabl e Ope rations B0h/D8h S.M.A.R.T . Enabl e/Disabl e Auto Offline B0h/D Bh S.M.A.R.T . Enabl e One Attribute Modification B0h /E0 h S.M.A.R.T . Execut e Offline B0h/D4h S.
26 Momentus Product Manu al, Rev. C 5.3.1 Identify D evice comman d The Identify Device command (command code EC H ) tran sfers information about the drive to the host following power up. The dat a is organized as a single 51 2-byte bl ock of data, whose content s are shown in the table on page 27.
Momentus Product Manua l, Rev. C 27 54 Number of current logical cylinders xxxx H 55 Number of current logical heads xxxx H 56 Number of current logi cal sectors per logica l track xxxx H 57–58 Curr.
28 Momentus Product Manu al, Rev. C 89 Security erase time 0045 H 90 Enhanced security erase time 0045 H 91 Current APM values 8080 H 92 Master password revision code FFFE H 93 Hardware reset value (see description follo wing this table) xxxx H 94 Auto acoustic management settin g xxxx H 95 S tream Min.
Momentus Product Manua l, Rev. C 29 Note. See the bit descriptio ns belo w for words 63, 88, 93 and 94 of the Identify Drive data: Description (if bit is set to 1) Bit Wor d 6 3 0 Multiword DMA mode 0 is supported . 1 Multiword DMA mode 1 is supported .
30 Momentus Product Manu al, Rev. C 5.3.2 Set Featu res command This command controls the implemen tation of various fe at ur es that the drive su pports. When the drive receives this command, it sets BSY , checks the contents of the Features r egister , clears BSY and generate s an inter- rupt.
Momentus Product Manua l, Rev. C 31 5.3.3 S.M.A.R.T . commands S.M.A.R.T . provides near-term failure pre diction for disc drives. When S.M.A.R.T . is ena bled, the drive moni- tors predetermined drive attributes that are suscep t ible to degradation over time.
32 Momentus Product Manu al, Rev. C.
Momentus Product Manua l, Rev. C 33 Index A ACA 17 acoustics 5 , 15 Active m ode 12 Address 24 AFR 16 Agency certification 16 Altitude 13 Altitude, nonoperating 5 Altitude, operating 5 Ambient tempera.
34 Momentus Product Manu al, Rev. C gradient 5 Guaranteed sectors 4 , 6 guaranteed sector s 6 H handling 19 Handling precautions 19 heads 6 Height 4 height 7 humidity 5 I I/O data-transfer rate 4 , 7 .
Momentus Product Manua l, Rev. C 35 Read Verify Sectors Extended 24 Read Verify Sect ors without R etries 24 Read/write heads 6 Read/write power 4 read/write power and current 9 Recording density 4 , 7 Recording method 7 Recording technology 7 Relative humidity 5 , 13 Reliability 16 resistance 11 Retries 24 RF 15 RoHS 18 RPM 4 RRL 17 S S.
36 Momentus Product Manu al, Rev. C.
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Seagate T echnology LLC 920 Disc Drive, Scotts V alley , California 95066-4544, USA Publication Number: 1006279 37, Rev . C.
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