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Product Manual
Barracuda 7200.8 Serial ATA
ST3400832AS
ST3400632AS
ST3300831AS
ST3300631AS
ST3250823AS
ST3250623AS
ST3200826AS
100325576
Rev. F
August 2007
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©2006-2007, Seagate Technology LLC All rights reserved. Publication number: 100325576, Rev. F August 2007 Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC in the United States and/or other countries. Barracuda, SeaTools and SeaTDD are either trademarks or registered trademarks of Seagate Technology LLC or one of its affiliated companies in the United States and/or other countries. All other trademarks or registered trademarks are the property
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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 Barracuda 7200.8 Serial ATA Product Manual, Rev. F
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List of Figures Figure 1. Typical 5V startup and operation current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Figure 2. Typical 12V startup and operation current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Figure 3. Serial ATA connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 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 ® Barracuda 7200.8 Serial ATA model drives: Barracuda 7200.8 Serial ATA � ST3400832AS � ST3400632AS � ST3300831AS � ST3300631AS � ST3250823AS � ST3250623AS � ST3200826AS These drives provide the following key features: � 7,200 RPM spindle speed. � 8 Mbyte buffer (ST3400832AS, ST3300831AS, ST3250823AS, and ST3200826AS models). � 16 Mbyte buffer (ST3400632AS, ST3300631AS, an
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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 f
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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 ST3400832AS, ST3400632AS, ST3300831AS, ST3300631AS, ST3250823AS, ST3250623AS and ST3200826AS models. 2.1 Specification summary tables The specifications listed in tables 1, 2, and 3 are for quick reference. For details on specification measurement or definiti
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Table 1: Drive specifications for 400 Gbyte models Drive specification ST3400832AS ST3400632AS Formatted Gbytes (512 bytes/sector)* 400 Guaranteed sectors 781,422,768 Bytes per sector 512 Default sectors per track 63 Default read/write heads 16 Default cylinders 16,383 Recording density in BPI (bits/inch max) 763,000 Track density TPI (tracks/inch avg) 120,000 2 Areal density (Mbits/inch avg) 91,560 Spindle speed (RPM) 7,200 Internal data transfer rate (Mbytes/sec max) 95 Sustained transfer rat
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Table 1: Drive specifications for 400 Gbyte models Drive specification ST3400832AS ST3400632AS Wet bulb temperature 37.7 (operating) (°C max) 40.0 (nonoperating) Altitude, operating –60.96 m to 3,048 m (–200 ft to 10,000+ ft) Altitude, nonoperating –60.96 m to 12,192 m (meters below mean sea level, max) (–200 ft to 40,000+ ft) Shock, operating (max at 2 msec) 63 Gs Shock, nonoperating (max at 2 msec) 300 Gs Vibration, operating 5–22 Hz: Limited displacement 23–350 Hz: 0.5 G acceleration Vibrati
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Table 2: Drive specifications for 300 Gbyte models Drive specification ST3300831AS ST3300631AS Formatted Gbytes (512 bytes/sector)* 300 Guaranteed sectors 586,072,368 Bytes per sector 512 Default sectors per track 63 Default read/write heads 16 Default cylinders 16,383 Recording density in BPI (bits/inch max) 763,000 Track density TPI (tracks/inch avg) 120,000 2 Areal density (Mbits/inch avg) 91,560 Spindle speed (RPM) 7,200 Internal data transfer rate (Mbytes/sec max) 95 Sustained transfer rat
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Table 2: Drive specifications for 300 Gbyte models Drive specification ST3300831AS ST3300631AS Wet bulb temperature 37.7 (operating) (°C max) 40.0 (nonoperating) Altitude, operating –60.96 m to 3,048 m (–200 ft to 10,000+ ft) Altitude, nonoperating –60.96 m to 12,192 m (meters below mean sea level, max) (–200 ft to 40,000+ ft) Shock, operating (max at 2 msec) 63 Gs Shock, nonoperating (max at 2 msec) 300 Gs Vibration, operating 5–22 Hz: Limited displacement 23–350 Hz: 0.5 G acceleration Vibrati
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Table 3: Drive specifications for 250 and 200 Gbyte models Drive specification ST3250823AS ST3250623AS ST3200826AS Formatted Gbytes (512 bytes/sector)* 250 200 Guaranteed sectors 488,397,168 390,721,968 Bytes per sector 512 Default sectors per track 63 Default read/write heads 16 Default cylinders 16,383 Recording density in BPI (bits/inch max) 763,000 Track density TPI (tracks/inch avg) 120,000 2 Areal density (Mbits/inch avg) 91,560 Spindle speed (RPM) 7,200 Internal data transfer rate (Mbyte
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Table 3: Drive specifications for 250 and 200 Gbyte models Drive specification ST3250823AS ST3250623AS ST3200826AS Wet bulb temperature 37.7 (operating) (°C max) 40.0 (nonoperating) Altitude, operating –60.96 m to 3,048 m (–200 ft to 10,000+ ft) Altitude, nonoperating –60.96 m to 12,192 m (meters below mean sea level, max) (–200 ft to 40,000+ ft) Shock, operating (max at 2 msec) 63 Gs Shock, nonoperating (max at 2 msec) 300 Gs Vibration, operating 5–22 Hz: Limited displacement 23–350 Hz: 0.5 G
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2.2 Formatted capacity Model Formatted capacity Guaranteed sectors Bytes per sector ST3400832AS and ST3400632AS 400 Gbytes 781,422,768 512 ST3300831AS and ST3300631AS 300 Gbytes 586,072,368 512 ST3250823AS and ST3250623AS 250 Gbytes 488,397,168 512 ST3200826AS 200 Gbytes 390,721,968 512 2.2.1 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. See Section 4.3.1, "Ident
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2.4 Recording and interface technology Interface Serial ATA (SATA) Recording method 16/17 EPRML Recording density BPI (bits/inch max) 763,000 Track density TPI (tracks/inch avg) 120,000 2 Areal density (Mbits/inch avg) 91,560 Spindle speed (RPM) (± 0.2%) 7,200 Internal data transfer rate (Mbytes/sec max) 95 Sustained transfer rate OD (Mbytes/sec max) 65 I/O data-transfer rate (Mbytes/sec max) 150 (SATA 1.0) Interleave 1:1 Cache buffer ST3400832AS 8 Mbytes (8,192 kbytes) ST3300831AS S
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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 Avera
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2.8 Power specifications The drive receives DC power (+5V or +12V) through a native SATA power connector. See Figure 4 on page 24. 2.8.1 Power consumption Power requirements for the drives are listed in the table on page 9. Typical power measurements are based on an average of drives tested, under nominal conditions, using 5.0V and 12.0V input voltage at 25°C ambient temperature. • Spinup power Spinup power is measured from the time of power-on to the time that the drive spindle reaches operat
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Table 4: DC power requirements Power dissipation (typical) Average (watts, 25° C) 5V typ amps 12V typ amps Spinup — — 2.8 (peak) Idle 7.2 0.401 0.433 Idle* (with offline activity) 9.1 0.78 0.433 Operating (40% r/w, 40% seek, 20% inop.) 12.8 0.841 0.715 Seeking (random, 20% idle) 12.4 0.602 0.782 Standby 1.4 0.265 0.006 Sleep 1.4 0.265 0.006 *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 operat
