Seagate Medalist 630xe User manual

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Medalist 630xe
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Medalist 850xe
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ATA Interface Drive
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Product Manual
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Medalist 630xe
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Medalist 850xe
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ATA Interface Drive
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Product Manual
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© 1996 Seagate Technology, Inc. All rights reserved
Publication Number: 39301-201, Rev. A, June 1996
Supersedes Publication Number 36330-x
xx
Seagate, Seagate Technology and the Seagate logo are registered
trademarks of Seagate Technology, Inc. Medalist is a trademark of
Seagate Technology, Inc. Other product names are trademarks or reg-
istered 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 Technology, Inc.

Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Quick specification chart . . . . . . . . . . . . . . . . . . . . . . 2
1.0 Specification summary . . . . . . . . . . . . . . . . . . . . . 5
1.1 Format configuration . . . . . . . . . . . . . . . . . . . . . . 5
1.2 Physical organization . . . . . . . . . . . . . . . . . . . . . 6
1.3 Functional specifications . . . . . . . . . . . . . . . . . . . 6
1.4 Physical dimensions . . . . . . . . . . . . . . . . . . . . . . 6
1.5 Seek time . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.6 Start and stop time . . . . . . . . . . . . . . . . . . . . . . 7
1.7 Power specifications . . . . . . . . . . . . . . . . . . . . . . 8
1.7.1 Power-management modes . . . . . . . . . . . . . . . 8
1.7.2 Voltage tolerances . . . . . . . . . . . . . . . . . . . 10
1.7.3 Conducted noise . . . . . . . . . . . . . . . . . . . . 10
1.7.4 Environment . . . . . . . . . . . . . . . . . . . . . . 11
1.7.5 Ambient temperature . . . . . . . . . . . . . . . . . . 11
1.7.6 Temperature gradient . . . . . . . . . . . . . . . . . . 11
1.7.7 Relative humidity . . . . . . . . . . . . . . . . . . . . 11
1.7.8 Altitude . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.7.9 Shock and vibration . . . . . . . . . . . . . . . . . . 12
1.8 Acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . 12
1.9 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1.10 Auto-park . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1.11 Agency listings . . . . . . . . . . . . . . . . . . . . . . . 13
1.12 EC compliance . . . . . . . . . . . . . . . . . . . . . . . 13
1.13 FCC verification . . . . . . . . . . . . . . . . . . . . . . 14
2.0 Configuration and mounting . . . . . . . . . . . . . . . . . 15
2.1 Handling and static-discharge precautions . . . . . . . . . 15
2.2 The ATA interface connector . . . . . . . . . . . . . . . . 17
2.3 Power connector . . . . . . . . . . . . . . . . . . . . . . . 17
2.4 Master/slave jumper block . . . . . . . . . . . . . . . . . . 17
Medalist 630xe and 850xe ATA Product Manual, June 1996 i

2.4.1 Single-drive or master with an ATA-compatible slave . 18
2.4.2 The drive as slave . . . . . . . . . . . . . . . . . . . 18
2.4.3 Master with a non-ATA-compatible slave . . . . . . . 18
2.4.4 Cable-select configuration . . . . . . . . . . . . . . . 18
2.4.5 Factory-test configuration . . . . . . . . . . . . . . . . 19
2.5 Mounting the drive . . . . . . . . . . . . . . . . . . . . . . 19
3.0 ATA interface . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.1 ATA interface connector pin assignments . . . . . . . . . . 21
3.2 Bus signal levels . . . . . . . . . . . . . . . . . . . . . . . 21
3.3 Supported ATA commands . . . . . . . . . . . . . . . . . 23
3.3.1 Identify Drive command (ECH) . . . . . . . . . . . . . 25
3.3.2 Format track command (50H) . . . . . . . . . . . . . . 27
3.3.3 Set Features command (EFH) . . . . . . . . . . . . . 28
3.3.4 Set Multiple Mode command (C6H) . . . . . . . . . . 30
3.3.5 Read Multiple command (C4H) . . . . . . . . . . . . . 30
3.3.6 Write Multiple command (C5H) . . . . . . . . . . . . . 31
3.4 Onboard drive diagnostics . . . . . . . . . . . . . . . . . . 32
3.5 ECC performance tests . . . . . . . . . . . . . . . . . . . 32
3.6 Supported BIOS . . . . . . . . . . . . . . . . . . . . . . . 33
ii Medalist 630xe and 850xe ATA Product Manual, June 1996

Contents
Figure 1. Typical startup current profile . . . . . . . . . . . . . . . . 8
Figure 2. ST3850A Connectors and jumpers . . . . . . . . . . . . 16
Figure 3. The drive interface connector . . . . . . . . . . . . . . . 17
Figure 4. Master/slave jumper block settings . . . . . . . . . . . . 18
Figure 5. Connecting cable-selected drives . . . . . . . . . . . . . 19
Figure 6. Standard mounting dimensions . . . . . . . . . . . . . . 20
Figure 7. ATA connector pin assignments . . . . . . . . . . . . . 22
Medalist 630xe and 850xe ATA Product Manual, June 1996 iii

Introduction
This manual describes the functional, mechanical and interface specifi-
cations for the Medalist 630xe and the Medalist 850xe hard disc drives.
The drives are referred to throughout this manual by their model num-
bers, ST3630A for the Medalist 630xe and ST3850A for the Medalist
850xe.
The ST3630A and ST3850A are designed to meet the needs of entry
level-to-midrange desktop computers. They are standard 3.5-inch form-
factor drives that feature advance transfer modes, Multiple block
read/write, segmented cache and power management. Their respective
631.1-Mbyte and 850.5-Mbyte capacities provide ample space to store
large software programs and for those programs to run efficiently.
Fast-ATAperformanceisavailableinbothdrives.TheST3850Asupports
advanced PIO modes 3 and 4 and advanced multiword DMA modes 1
and2forbursttransferratesupto16.6Mbytespersecond.TheST3630A
supports advanced PIO mode 3 and advanced multiword DMA mode 1
forbursttransferratesupto13.3Mbytespersecond.Bothdrivessupport
Multiple block read/write, which allows them to store contiguous blocks
of data in their 120-Mbyte segmented cache and to transfer the blocks
in a single burst.
The drives support power-management modes for energy-efficient op-
eration. Power dissipation falls to 0.725 W (typical) in Standby mode.
The drives enter power-saving modes at the request of the host. They
can also be programmed to automatically enter power-saving modes
using the Idle timer or Standby timer commands. The power-manage-
ment modes the drives support are discussed in subsection 1.7.1 on
page8.Thepower-managementcommandsthedrivessupportarelisted
in the ATA-command table on page 24.
Medalist 630xe and 850xe ATA Product Manual, June 1996 1

Quick specification chart
The following table serves as aquick reference for the ST3630Aand the
ST3850Aperformancespecifications.Theseandotherspecificationsare
discussed in the Specification summary section following the table.
Drive specification ST3630A ST3850A
Guaranteed capacity (Mbytes1) (x106bytes) 631.1 850.5
Guaranteed sectors 1,232,784 1,661,184
Bytes per sector 512 512
Sectors per track 63 63
Logical Read/Write heads 16 16
Logical cylinders 1,223 1,648
Physical Read/Write heads 4 4
Physical disc 2 2
Recording density (Kbits/inch) 68 70
Track density (tracks/inch) 3,384 4,300
Spindle speed (RPM) 3,811 3,811
Track-to-track seek time (msec typical) 5 5
Average seek time (msec typical) 14 14
Full-stroke seek time (msec typical) 34 34
Average latency (msec) 7.87 7.87
Internal data-transfer rate (Mbits per sec max) 22.9 to 39.6 23.1 to 42.3
External transfer rate (Mbytes per sec) PIO mode 11.1 (max) 16.6 (max)
External transfer rate (Mbytes per sec) DMAmode 13.3 (max) 16.6 (max)
Cache buffer (Kbytes) 120 120
Height (inches max) 1.00 1.00
Width (inches max) 4.02 4.02
Depth (inches max) 5.77 5.77
Typical weight (lb) 1.3 1.3
Power-on to ready (sec typical) 7 7
Spinup current (typical) 1.25A 1.25A
1. One Mbyte equals one million bytes.
2 Medalist 630xe and 850xe ATA Product Manual, June 1996