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U10 Family
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ST320423A, ST315323A,
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ST310212A
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Ultra ATA Interface Drives
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . U10 Family . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ST320423A, ST315323A, . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ST310212A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ultra ATA Interface Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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© 2000 Seagate Technology, Inc. All rights reserved Publication Number: SG35336-001, Rev. A, January 2000 Seagate, Seagate Technology, the Seagate logo and U10 are either registered trademarks or trademarks of Seagate Technology, Inc. Other product names are registered trademarks or trademarks of their owners. Seagate reserves the right to change, without notice, product offerings or specifications. No part of this publication may be reproduced in any form without written permission from Seagate
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U10 Family Product Manual, Rev. A iii Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Specification summary table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.0 Drive specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.1 Formatted capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.1.1 Default logical geometry . . . . . . . . . . . . . . . . . . . . .
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iv U10 Family Product Manual, Rev. A 1.12.3 FCC verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 2.0 Configuring and mounting the drive . . . . . . . . . . . . . . . . . . . 17 2.1 Handling and static-discharge precautions . . . . . . . . . . . . . . 17 2.2 Jumper settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 2.2.1 Master/slave configuration . . . . . . . . . . . . . . . . . . . . . . 18 2.2.2 Cable-select option . . . . . . . .
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U10 Family Product Manual, Rev. A v Figures Figure 1. Typical startup and operation current profile . . . . . . . . . . . . 9 Figure 2. Master/slave jumper settings . . . . . . . . . . . . . . . . . . . . . . . 18 Figure 3. Mounting dimensions—top, side and end view . . . . . . . . . 20 Figure 4. I/O pins and supported ATA signals. . . . . . . . . . . . . . . . . . 22
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vi U10 Family Product Manual, Rev. A
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U10 Family Product Manual, Rev. A 1 Introduction This manual describes the functional, mechanical and interface specifi- cations for the ST320423A, ST315323A and the ST310212A. These drives provide the following key features: • Low power consumption • Quiet operation • High instantaneous (burst) data-transfer rates (up to 66.6 Mbytes per second) using Ultra DMA mode 4 • 8.9 msec seek time, 5,400-RPM and 512-Kbyte buffer combine for excellent desktop performance • 350 Gs nonoperating shock • GMR
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2 U10 Family Product Manual, Rev. A Specification summary table The specifications listed in this table are for quick reference. For details on specification measurement or definition, see the appropriate section of this manual. Drive Specification ST320423A ST315323A ST310212A 6 Guaranteed Mbytes (×10 bytes) 20,485 15,364 10,242 Guaranteed sectors 40,011,300 30,008,475 20,005,650 Bytes per sector 512 Default sectors per track 63 Default read/write heads 16 16 16 Default cylinders 16,383 16,383
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U10 Family Product Manual, Rev. A 3 Drive Specification ST320423A ST315323A ST310212A Full-stroke seek time (msec typical) 23.0 (read) 25.0 (write) Average latency (msec) 5.56 msec Power-on to ready (sec typical) 10 sec Standby to ready (sec typical) 10 sec Spindown (sec typical) 10 sec Startup current (typical) 12V (peak) 1.5 amps Seek power (typical) 7.0 watts Read/Write power 6.5 watts Idle mode (typical) 3.5 watts Standby/Sleep mode (typical) 0.8 watts Voltage tolerance (including noise)
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4 U10 Family Product Manual, Rev. A Drive Specification ST320423A ST315323A ST310212A 13 Nonrecoverable read errors 1 per 10 bits read Mean time between failures (power-on hours) 500,000 Contact start-stop cycles (25°C, 40% relative humidity) 50,000 Service life (years) 5 SeaShield Yes
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U10 Family Product Manual, Rev. A 5 1.0 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 ST320423A, ST315323A and the ST310212A. 1.1 Formatted capacity Drive Model Guaranteed Mbytes Guaranteed Bytes per 6 (1 Mbyte = 10 bytes) sectors sector ST320423A 20,485 40,011,300 512 ST315323A 15,364 30,008,475 512 ST31021
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6 U10 Family Product Manual, Rev. A 1.3 Recording and interface technology Interface ATA Recording method 24/26 EPRML Recording density BPI (bits/inch) 396,067 Track density TPI (tracks/inch) 20,107 2 Areal density (Mbits/inch max) 7,964 Spindle speed (RPM) (± 0.2%) 5,400 Internal data-transfer rate (Mbits/sec max) 308 I/O data-transfer rate 16.6 (PIO mode 4) (Mbytes/sec max) 66.6 (Ultra DMA mode 4) Interleave 1:1 Cache buffer (Kbytes) 512 1.4 Physical characteristics Drive Specification ST320
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U10 Family Product Manual, Rev. A 7 1.5 Seek time Seek measurements are taken with nominal power at 25°C ambient temperature. All times are measured using drive diagnostics. The spec- ifications 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. • Full-stroke seek time is
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8 U10 Family Product Manual, Rev. A 1.7.1 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 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 operating speed. • Seek Mode During seek mode, the read/write actuator arm moves toward a specific position on t
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U10 Family Product Manual, Rev. A 9 Typical Amps RMS Power Mode Typical Watts 5V 12V RMS Spinup — 0.65 1.5 Seeking (Random, no read/write) 7.0 0.4 0.42 Operating (read/write) 6.5 0.46 0.350 Idle 3.5 0.28 0.170 Standby/Sleep 0.8 0.123 0.015 1.7.1.1 Typical current profile Current (amps) 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 0 1234 5 6 78 9 Time (seconds) Figure 1. Typical startup and operation current profile
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10 U10 Family Product Manual, Rev. A 1.7.2 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. • Using 5-volt power, the drive is expected to operate with a maximum of 100 mV peak-to-peak square-wave injected
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U10 Family Product Manual, Rev. A 11 established using a Standby or Idle command. In Standby mode, the drive buffer is enabled, the heads are parked and the spindle is at rest. The drive accepts all commands and returns to Active mode any time disc access is necessary. • Sleep mode The drive enters Sleep mode after receiving a Sleep command from the host. In Sleep mode, the drive buffer is disabled, the heads are parked and the spindle is at rest. The drive leaves Sleep mode after it receives a
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12 U10 Family Product Manual, Rev. A 1.8.3 Humidity 1.8.3.1 Relative Humidity Operating 5% to 90% noncondensing (30% per hour max) Nonoperating 5% to 95% noncondensing (30% per hour max) 1.8.3.2 Wet bulb temperature Operating 29.4°C (84°F) max Nonoperating 40.0°C (104°F) max 1.8.4 Altitude Operating –61 m to 3,048 m (–200 ft to 10,000+ ft) Nonoperating –122 m to 12,192 m (–400 ft to 40,000+ ft) 1.8.5 Shock All shock specifications assume that the drive is mounted securely with the input s
