Seagate MARATHON 541 Product Manual

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Marathon 541

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ATA Interface Drive

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Product Manual

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Marathon 541 (ST9546A)

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ATA Interface Drive

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Product Manual

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trademarks of Seagate Technology, Inc. Marathon is a trademark 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 Tec hnology, Inc.

Marathon 541 (ST9546A) Product Manual, September 1995 iii

Contents

Intr od u ction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Specificatio n summary table . . . . . . . . . . . . . . . . . . . 2

1.0 Drive specifications . . . . . . . . . . . . . . . . . . . . . . 5

1.1 Formatted capacity . . . . . . . . . . . . . . . . . . . . . 5

1.1.1 Default logical geometry . . . . . . . . . . . . . . . . 5

1.1.2 Supported translation geometries . . . . . . . . . . . 5

1.2 Physical organization . . . . . . . . . . . . . . . . . . . . 5

1.3 Recording and interface technology . . . . . . . . . . . . . 6

1.4 Physical dimensions . . . . . . . . . . . . . . . . . . . . . 6

1.5 Seek time . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.6 Startup times . . . . . . . . . . . . . . . . . . . . . . . . 7

1.7 Power specifications . . . . . . . . . . . . . . . . . . . . . 7

1.7.1 Power consumption . . . . . . . . . . . . . . . . . . 7

1.7.2 Power recovery . . . . . . . . . . . . . . . . . . . . . 9

1.7.3 Conducted noise . . . . . . . . . . . . . . . . . . . . 9

1.7.4 Voltage tolerance . . . . . . . . . . . . . . . . . . . . 9

1.7.5 Power-management modes . . . . . . . . . . . . . . 9

1.8 Environmental tolerances . . . . . . . . . . . . . . . . . . 10

1.8.1 Ambient temperature . . . . . . . . . . . . . . . . . . 10

1.8.2 Temperature gradient . . . . . . . . . . . . . . . . . 10

1.8.3 Relative humidity . . . . . . . . . . . . . . . . . . . . 10

1.8.4 Altitude . . . . . . . . . . . . . . . . . . . . . . . . . 11

1.8.5 Shock . . . . . . . . . . . . . . . . . . . . . . . . . . 11

1.8.6 Vibration . . . . . . . . . . . . . . . . . . . . . . . . 11

1.9 Drive acoustics . . . . . . . . . . . . . . . . . . . . . . . 12

1.10 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . 12

1.11 Agency certification . . . . . . . . . . . . . . . . . . . . 13

1.11.1 Safety certification . . . . . . . . . . . . . . . . . . 13

iv Marathon 541 (ST9546A) Product Manual, September 1995

1.11.2 FCC verification . . . . . . . . . . . . . . . . . . . . 13

2.0 Drive mounting and configuration . . . . . . . . . . . . . . 15

2.1 Handling and static-discharge precautions . . . . . . . . . 15

2.2 Jumper settings . . . . . . . . . . . . . . . . . . . . . . . 15

2.2.1 Master/slave configurati on . . . . . . . . . . . . . . . 15

2.3 Remote LED configuration . . . . . . . . . . . . . . . . . 17

2.4 Drive mounting . . . . . . . . . . . . . . . . . . . . . . . 17

2.5 ATA interface connector . . . . . . . . . . . . . . . . . . . 19

3.0 ATA interface . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.1 ATA interface signals and connector pins . . . . . . . . . . 21

3.1.1 AT bus signal levels . . . . . . . . . . . . . . . . . . 21

3.2 ATA Interface commands . . . . . . . . . . . . . . . . . . 23

3.2.1 Supported ATA commands . . . . . . . . . . . . . . . 23

3.2.2 Identify Drive comman d . . . . . . . . . . . . . . . . 25

3.2.3 Set Features command . . . . . . . . . . . . . . . . 28

Appendix. Compatibility notes . . . . . . . . . . . . . . . . . . 29

Marathon 541 (ST9546A) Product Manual, September 1995 v

Figures

Figure 1. Typical startup and operation current profile for

the Marathon 541 . . . . . . . . . . . . . . . . . . . . . 8

Figure 2. Connector and master/slave jumper set up for

the Marathon 541 . . . . . . . . . . . . . . . . . . . . . 16

Figure 3. Mounting dimensions for the Marathon 541 . . . . . . . . 18

Figure 4. ATA Interface connector dimensions . . . . . . . . . . . 19

Figure 5. I/O pins and associated ATA signals the

Marathon 541 supports . . . . . . . . . . . . . . . . . . 22

Marathon 541 (ST9546A) Product Manual, September 1995 1

Introduction

The Marathon 541 (ST9546A) provides high storage capacity in a small, low-profile hard disc drive.

Key features:

• Low power consumption

• Compact, MCC-compatible form-factor

• Quiet operation

• Advanced partial-response, maximum-likelihood (PRML) read channel

• Supports logical block addressing

• Supports PIO modes 0, 1, 2, 3 and 4, and DMA modes 0, 1 and 2.

• High instant aneous data-transfer r ates (up to 16.6 Mbytes per s econd

using PIO mode 4 and DMA mode 2).

• Fast microprocessor for lower command overhead

• 120-Kbyte multisegmented adaptive cache

• Advanced caching and on-the-fly error-correction algorithms

• Supports Read Multiple and Write Multiple commands

• Supports autodetection of master/slave drives using cable select and

DASP– signals.

2 Marathon 541 (ST9546A) Product Manual, September 1995

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 Specifi cation Marathon 541

Guaranteed Capacity (×106 bytes) Guaranteed se ctors 1,055 ,376 Bytes per sect or 512 Default sectors per track 63 Default read/write heads 16 Default cylinders 1,047 Physical read/write he ads 6 Number of discs 3 Recording densit y (bits/ inch) 90,000 Track density (tracks/inch) 3,807 Areal density (M bit s/inch Spindle speed (RPM) 4,500 Internal data -t ra nsf er rat e (M bits/sec, max) 44 I/O data-transfer rate (M bytes/s ec, max) 16.6 A TA dat a-tr ansf er mo des su ppor t ed PIO modes 0, 1, 2, 3, 4;

Cache buffer (Kbytes) 120

)342

Multiword DMA modes 0, 1, 2

540.3

Height (inches, max) 0.754 Width (inches, max) 2.76 Depth (inches, m ax, excluding I/O pins) 4.01 0 Weight (ounces, typical) 7.4 Track-t o-tr ack seek time (msec, typical) 6 (read), 7 (write) Average see k time (mse c, typic al) 16 (read), 20 (write) Full-stroke seek t ime (ms ec, ma x) 26 (read), 28 (write)

Marathon 541 (ST9546A) Product Manual, September 1995 3

Drive Specifi cation Marathon 541

Average lat ency (msec) 6.67 Power-on to ready (seconds , typical) 7 Standby to ready (seconds , typical) 3 Spinup power and cur ren t (typical) 3.50 watts, 0. 700 amps Seek power and cur ren t (typical) 2.10 watts, 0. 420 amps Read/Writ e power and curr ent (typica l) 2.10 watts, 0. 420 amps Idle mode power and cu rrent (typica l) 1.30 watts, 0. 260 amps Standby mode power and curr ent (typical) 0.40 watts, 0. 080 amps Sleep mode power a n d curren t (ty pical) 0.30 watts, 0.060 am ps Volt age toler ance (including noise) +5 volts +5% –10% Ambient temperature (range) 5° to 55°C (op.),

–40° to 70°C (nonop.) Temperature grad ient (°C per hour, max) 30°C Relative humidity 8%–80% (10%/ hr max grad. ) Wet bulb temper at ur e (max) 29°C (op.), 40°C (non op. ) Altitude (mete rs above m ean sea level, max) –300 to 3,040 (op. ),

–300 to 12,1 90 (non op. ) Shock, operating (Gs, max at 2 or 11 msec) 10 Shock, nonopera ting (Gs, max) 250 (2 msec), 150 (11 msec) Vibration (Gs max at 22–450 Hz) 0.50 (op. ) 4.0 (nonop .) Drive acoustics, Idle mo de (dBA) 26 (typical), 30 (max ) Drive acoustics, seeking (d BA) 29 (typical), 33 (max ) Nonrecovera ble rea d error s 1 per 10

bits read Mean time between failures (power-on hours) 300,000 Contact start-st op cycles 50,000 Service life (years) 5

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