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DB35.3 Series PATA
ST3750840ACE
ST3500830ACE
ST3400820ACE
ST3320820ACE
ST3300820ACE
ST3250820ACE
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DB35.3 Series PATA ST3750840ACE ST3500830ACE ST3400820ACE ST3320820ACE ST3300820ACE ST3250820ACE
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© 2006, Seagate Technology LLC All rights reserved Publication number: 100427568, Rev. C August 2006 Seagate and Seagate Technology are registered trademarks of Seagate Technology LLC. SeaTools, SeaFONE, SeaBOARD, SeaTDD, and the Wave logo are either registered trade- marks or trademarks of Seagate Technology LLC. Other product names are registered trade- marks or trademarks of their owners. Seagate reserves the right to change, without notice, product offerings or specifications. No part of thi
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Contents 1.0 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.0 Drive specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.1 Specification summary table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.2 Formatted capacity . . . . . . . . . . . . . . . . . . . .
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iv DB35.3 Series PATA Product Manual, Rev. C
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List of Figures Figure 1. Typical 5V startup and operation current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Figure 2. Typical 12V startup and operation current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Figure 3. Breather filter hole location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Figure 4. Master/slave jumper settings . . . . . . . . . . . . . . . . . . .
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vi DB35.3 Series PATA Product Manual, Rev. C
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1.0 Introduction ® This manual describes the functional, mechanical and interface specifications for the following Seagate DB35.3 Series PATA model drives: ST3750840ACE ST3320820ACE ST3500830ACE ST3300820ACE ST3400820ACE ST3250820ACE These drives provide the following key features: • 7,200-RPM spindle speed. • High instantaneous (burst) data transfer rates (up to 100 Mbytes per second) using Ultra DMA mode 5. • Perpendicular recording technology. Tunneling Giant magnetoresistive (TGMR) recording
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2 DB35.3 Series PATA Product Manual, Rev. C
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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: ST3750840ACE ST3320820ACE ST3500830ACE ST3300820ACE ST3400820ACE ST3250820ACE 2.1 Specification summary table The specifications listed in the table below are for quick reference. For details on specification measurement or definition, see
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Table 1: Drive specifications summary for 750, 500, and 400 Gbyte models Drive specification ST3750840ACE ST3500830ACE ST3400820ACE Formatted Gbytes (512 bytes/sector)* 750 500 400 Guaranteed sectors 1,465,149,168 976,773,168 781,422,768 Bytes per sector 512 Default sectors per track 63 Default read/write heads 16 Default cylinders 16,383 Recording density, max 926 kbits/in 813 kbits/in 781 kbits/in Track density, max 145 ktracks/in 2 2 2 Areal density, max 128.2 Gbits/in 114.4 Gbits/in 128.2 G
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Drive specification ST3750840ACE ST3500830ACE ST3400820ACE 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 2.9 (typical) 2.8 (typical) 3.0 (max) 2.9 (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 spec
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Table 2: Drive specifications summary for 320, 300, and 250 Gbyte models Drive specification ST3320820ACE ST3300820ACE ST3250820ACE Formatted Gbytes (512 bytes/sector)* 320 300 250 Guaranteed sectors 625,142,448 586,072,368 488,397,168 Bytes per sector 512 Default sectors per track 63 Default read/write heads 16 Default cylinders 16,383 Recording density, max 781 kbits/in 813 kbits/in Track density, max 145 ktracks/in 2 Areal density, max 114.4 Gbits/in Spindle speed 7,200 RPM Internal data tra
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Drive specification ST3320820ACE ST3300820ACE ST3250820ACE 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 2.8 bels (typical) 2.7 bels (typical) 2.9 bels (max) 2.8 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
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2.2 Formatted capacity Formatted Guaranteed Model capacity* sectors Bytes per sector ST3750840ACE 750 Gbytes 1,465,149,168 512 ST3500830ACE 500 Gbytes 976,773,168 512 ST3400820ACE 400 Gbytes 781,422,768 512 ST3320820ACE 320 Gbytes 625,142,448 512 ST3300820ACE 300 Gbytes 586,072,368 512 ST3250820ACE 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 environ- ment and formatting. 2.2.1 LBA mode W
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2.4 Recording and interface technology 750GB 500GB 400GB 320GB 300GB 250GB Interface ATA 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) 100 (Ultra DMA mode 5) 2.5 Physical characteristics Driv
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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 Averag
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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 mode. Table 3: DC power requirements Power dissipation using consumer storage profile (ST3750840ACE values Average Average Average shown) (watts, 25° C) 5V typ amps 12V typ amps Spinup — — 2.0 (peak) Idle*
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2.8.1.1 Typical current profile Figure 1 Typical 5V startup and operation current profile Figure 2 Typical 12V startup and operation current profile 2.8.2 Conducted noise Input noise ripple is measured at the host system power supply across an equivalent 80-ohm resistive load on the +12 volt line or an equivalent 15-ohm resistive load on the +5 volt line. • Using 12-volt power, the drive is expected to operate with a maximum of 120 mV peak-to-peak square-wave injected noise at up to 10 MHz. • Us
