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Product Manual
DB35.3 Series Serial ATA
ST3750640SCE
ST3750840SCE
ST3500830SCE
ST3400820SCE
ST3320820SCE
ST3300820SCE
ST3250820SCE
100427570
Rev. D
August 2007
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Revision history Revision Date Sheets affected or comments Rev. A 08/04/06 Initial draft. Rev. B 08/17/06 4-11 and 21. Rev. C 07/18/07 ft cover, 1, 3, 4, 6, 8, 10 and 23. Rev. D 08/2307 1, 39 and 40. Copyright © 2006-2007 Seagate Technology LLC. All rights reserved. Printed in USA Publication number: 100427570, Rev. D August 2007 Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC in the United States and/or other countries. DB35.3 Series, SeaTools
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Contents 1.0 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.1 About the Serial ATA interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2.0 Drive specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.1 Specification summary tables . . . . . . . . . . . . . . .
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ii DB35.3 Series Serial ATA Product Manual, Rev. D
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List of Figures Figure 1. Typical 5V startup and operation current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Figure 2. Typical 12V startup and operation current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Figure 3. Serial ATA connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Figure 4. Attaching SATA cabling . . . . . . . . . . . . . . . . . . . . . . .
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1.0 Introduction This manual describes the functional, mechanical and interface specifications for the following Seagate DB35.3 Series Serial ATA model drives: ST3750640SCE ST3500830SCE ST3320820SCE ST3250820SCE ST3750840SCE ST3400820SCE ST3300820SCE These drives provide the following key features: � 7,200 RPM spindle speed. � High instantaneous (burst) data-transfer rates (up to 150 Mbytes per second). � Tunneling Magnetoresistive (TMR) recording heads. � State-of-the-art cache and on-the-fly
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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 necessary to set any jump- ers 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 transition fro
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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 following drive models: ST3750640SCE ST3500830SCE ST3320820SCE ST3250820SCE ST3750840SCE ST3400820SCE ST3300820SCE 2.1 Specification summary tables The specifications listed in the following table are for quick reference. For details on specification measureme
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Table 1: Drive specifications summary for 750 Gbyte models Drive specification ST3750640SCE ST3750840SCE Formatted Gbytes (512 bytes/sector)* 750 Guaranteed sectors 1,465,149,168 Bytes per sector 512 Default sectors per track 63 Default read/write heads 16 Default cylinders 16,383 Recording density, max 926 kbits/in Track density, max 145 ktracks/in 2 Areal density, max 128.2 Gbits/in Spindle speed 7,200 RPM Internal data transfer rate, max 1,030 Mbits/sec Sustained data transfer rate, max 78 Mb
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Drive specification ST3750640SCE ST3750840SCE Vibration, nonoperating 5–22 Hz: 0.25 Gs, Limited displacement 22–350 Hz: 5.0 Gs 350–500 Hz:: 1.0 Gs Drive acoustics, sound power Idle** 2.8 bels (typical) 3.0 bels (max) CE seek profile 3.0 bels (typical) 3.1 bels (max) 14 Nonrecoverable read errors 1 per 10 bits read Annualized Failure Rate (AFR) 0.68% Warranty 5 years on distribution units. To determine the warranty for a specific drive, use a web browser to access the following web pa
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Table 2: Drive specifications summary for 500 and 400 Gbyte models Drive specification ST3500830SCE ST3400820SCE Formatted Gbytes (512 bytes/sector)* 500 400 Guaranteed sectors 976,773,168 781,422,768 Bytes per sector 512 Default sectors per track 63 Default read/write heads 16 Default cylinders 16,383 Recording density, max 813 kbits/in 781 kbits/in Track density, max 145 ktracks/in 2 2 Areal density, max 114.4 Gbits/in 128.2 Gbits/in Spindle speed 7,200 RPM Internal data transfer rate, max 1,0
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Drive specification ST3500830SCE ST3400820SCE Vibration, nonoperating 5–22 Hz: 0.25 Gs, Limited displacement 22–350 Hz: 5.0 Gs 350–500 Hz:: 1.0 Gs Drive acoustics, sound power Idle** 2.8 bels (typical) 2.7 bels (typical) 3.0 bels (max) 2.9 bels (max) CE seek profile 3.0 bels (typical) 2.9 bels (typical) 3.1 bels (max) 3.0 bels (max) 14 Nonrecoverable read errors 1 per 10 bits read Annualized Failure Rate (AFR) 0.68% Warranty 5 years on distribution units. To determine the warranty for a s
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Table 3: Drive specifications summary for 320 and 300 Gbyte models Drive specification ST3320820SCE ST3300820SCE Formatted Gbytes (512 bytes/sector)* 320 300 Guaranteed sectors 625,142,448 586,072,368 Bytes per sector 512 Default sectors per track 63 Default read/write heads 16 Default cylinders 16,383 Recording density, max 781 kbits/in Track density, max 145 ktracks/in 2 Areal density, max 114.4 Gbits/in Spindle speed 7,200 RPM Internal data transfer rate, max 1,030 Mbits/sec Sustained data tr
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Drive specification ST3320820SCE ST3300820SCE Vibration, nonoperating 5–22 Hz: 0.25 Gs, Limited displacement 22–350 Hz: 5.0 Gs 350–500 Hz:: 1.0 Gs Drive acoustics, sound power Idle** 2.7 bels (typical) 2.5 bels (typical) 2.9 bels (max) 2.7 bels (max) CE seek profile 2.9 bels (typical) 2.8 bels (typical) 3.0 bels (max) 2.9 bels (max) 14 Nonrecoverable read errors 1 per 10 bits read Annualized Failure Rate (AFR) 0.68% Warranty 5 years on distribution units. To determine the warranty for
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Table 4: Drive specifications summary for 250 Gbyte models Drive specification ST3250820SCE Formatted Gbytes (512 bytes/sector)* 250 Guaranteed sectors 488,397,168 Bytes per sector 512 Default sectors per track 63 Default read/write heads 16 Default cylinders 16,383 Recording density, max 813 kbits/in Track density, max 145 ktracks/in 2 Areal density, max 114.4 Gbits/in Spindle speed 7,200 RPM Internal data transfer rate, max 1,030 Mbits/sec Sustained data transfer rate, max 72 Mbytes/sec I/O d
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Drive specification ST3250820SCE Vibration, nonoperating 5–22 Hz: 0.25 Gs, Limited displacement 22–350 Hz: 5.0 Gs 350–500 Hz:: 1.0 Gs Drive acoustics, sound power Idle** 2.5 bels (typical) 2.7 bels (max) CE seek profile 2.8 bels (typical) 2.9 bels (max) 14 Nonrecoverable read errors 1 per 10 bits read Annualized Failure Rate (AFR) 0.68% Warranty 5 years on distribution units. To determine the warranty for a specific drive, use a web browser to access the following web page: www.seaga
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2.2 Formatted capacity Formatted Guaranteed Model capacity* sectors Bytes per sector ST3750640SCE 750 Gbytes 1,465,149,168 512 ST3750840SCE 750 Gbytes 1,465,149,168 512 ST3500830SCE 500 Gbytes 976,773,168 512 ST3400820SCE 400 Gbytes 781,422,768 512 ST3320820SCE 320 Gbytes 625,142,448 512 ST3300820SCE 300 Gbytes 586,072,368 512 ST3250820SCE 250 Gbytes 488,397,168 512 *One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating
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2.4 Recording and interface technology 750GB 500GB 400GB 320GB 300GB 250GB Interface Serial ATA (SATA) Recording method Perpendicular Recording density, KBPI (kbits/inch max) 926 813 781 813 Track density, KTPI (ktracks/inch avg) 145 2 Areal density (Gbits/inch avg) 128.2 114.4 Spindle speed (RPM) (± 0.2%) 7,200 Internal data transfer rate (Mbits/sec max) 1,030 Sustained data transfer rate (Mbytes/sec max) 78 72 I/O data-transfer rate (Mbytes/sec max) 300 (Ultra DMA mode 5) 2.5 Physical char
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2.6 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 5,000 measurements of seeks between random tracks, less overhead. Typical seek times (msec) Read Write Track-to-track <0.8 <1.0 Aver
