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Product Manual
®
Momentus XT
ST750LX003 ST500LX003
100665905
Gen-2
Rev. D
September 2011
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Revision history Revision Date Sheets affected or comments Rev. A 06/10/11 Initial release. Rev. B 06/24/11 2 & 12. Rev. C 08/02/11 FC, 2, 4, 6-7, 9, 11 & 20. Rev. D 09/28/11 8. © 2011 Seagate Technology LLC. All rights reserved. Publication number: 100665905, Rev. D, September 2011 Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC in the United States and/or other countries. Momentus XT and SeaTools are either trademarks or registered trademar
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Contents 1.0 Seagate Technology support services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.0 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2.1 About the Serial ATA interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3.0 Drive specifications . . . . . . . . . . . . . . . . . . . . . . . . . . .
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ii Momentus XT Product Manual, Rev. D
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List of Figures Figure 1. Typical +5V only startup and operation current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Figure 2. Attaching SATA cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Figure 3. Mounting dimensions—top, side and end view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Momentus XT Product Manual, Rev. D iii
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1.0 Seagate Technology support services SEAGATE ONLINE SUPPORT and SERVICES For information regarding products and services, visit http://www.seagate.com/www/en-us/about/contact_us/ Available services include: Presales & Technical support Global Support Services telephone numbers & business hours Authorized Service Centers For information regarding Warranty Support, visit http://www.seagate.com/www/en-us/support/warranty_&_returns_assistance For information regarding Data Recovery Services,
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2.0 Introduction This manual describes the functional, mechanical and interface specifications for the following Seagate ® Momentus XT model drives: ST750LX003 ST500LX003 These drives provide the following key features: • 7200-RPM spindle speed. • 32MB buffer. • Quiet operation. Fluid Dynamic Bearing (FDB) motor. • High instantaneous (burst) data-transfer rates (up to 6Gbs). • Perpendicular recording technology. • State-of-the-art cache and on-the-fly error-correction algorithms. • Addition of
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2.1 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 normally 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 tran
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3.0 Drive specifications Unless otherwise noted, all specifications are measured under ambient conditions, at 25°C, and nominal power. 3.1 Specification summary table 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. Table 1: Drive specifications Drive specification ST750LX003 ST500LX003 Formatted GB (512 bytes/sector)* 750 500 Guaranteed sectors 1,465,149,168 976,773,168 Bytes p
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Table 1: Drive specifications Drive specification ST750LX003 ST500LX003 Write power (watts typical) 3.2 Idle mode, low power (watts typical) 1.1 Standby mode (watts typical) 0.6 *** Sleep mode (watts typical) 0.6 *** Voltage tolerance (including noise) +5V ± 5% Ambient temperature (°C) 0 to 60 (operating) –40 to 70 (nonoperating) Temperature gradient (°C per hour max) 20 (operating), 35 (nonoperating) Relative humidity 5% to 95% (operating and nonoperating Relative humidity gradient 30% per hou
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3.2 Formatted capacity Model Formatted capacity* Guaranteed sectors Bytes per sector ST750LX003 750GB 1,465,149,168 4K emulated @ 512 ST500LX003 500GB 976,773,168 *One GB equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment and formatting. 3.2.1 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
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3.3 Default logical geometry Cylinders Read/write heads Sectors per track 16,383 16 63 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. 3.4 Physical organization Drive model Read/write heads Number of discs 750GB 4 2 500GB 3.5 Recording and interface technology Interface Serial ATA (SATA) Recording method Perpendicular Recording density BPI (bits/in max) 1778k Track d
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3.7 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 possible single-track seeks in both directions. • Average seek time is a true statistical random average of at least 5000 measurements of seeks between random tracks, less overhead. Table 2: Typical seek times Typical seek times (ms) Read Track-to-t
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• 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 Table 3: DC power Power dissipation +5V input average (25° C) Spinup (max) 1.2A Read 3.3W Write 3.2W Idle, performance* 2.4W Idle, active* 1.2W Idle, low power mode* 1.1W Standby 0.6W Sle
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3.9.1.1 Typical current profile Figure 1. Typical +5V only startup and operation current profile 10 Momentus XT Product Manual, Rev. D
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3.9.2 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. Equivalent resistance is calculated by dividing the nominal voltage by the typical RMS read/write current. 3.9.3 Voltage tolerance Voltage tolerance (including noise): 5V ± 5% 3.9.4 Power-management modes The drive p
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• 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 activity is required, the drive makes a transition to Standby mode. In both Idle and Standby mode, the drive accepts all commands and returns to Active mode when disc access is necessary. 3.10 Environmental specifications This section provides the t
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3.10.6.2 Nonoperating shock The nonoperating shock level that the drive can experience without incurring physical damage or degradation in performance when subsequently put into operation is 800 Gs based on a nonrepetitive half-sine shock pulse of 2 ms duration. The nonoperating shock level that the drive can experience without incurring physical damage or degradation in performance when subsequently put into operation is 1000 Gs based on a nonrepetitive half-sine shock pulse of 1 ms durati
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3.12 Electromagnetic immunity When properly installed in a representative host system, the drive operates without errors or degradation in performance when subjected to the radio frequency (RF) environments defined in the following table: Table 6: Radio frequency environments Performance Reference Test Description level standard Electrostatic discharge Contact, HCP, VCP: ± 4 kV; Air: ± 8 kV B EN 61000-4-2: 95 Radiated RF immunity 80 to 1,000 MHz, 3 V/m, A EN 61000-4-3: 96 80% AM with 1 kHz s
