Seagate 2250, 1680 User Manual

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Marathon 2250

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Marathon 1680

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ATA Interface Drives

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Product Manual

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Marathon 2250 (ST92255AG)

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Marathon 1680 (ST91685AG)

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ATA Interface Drives

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Product Manual

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trademarks of Seagate Technology, Inc. Marathon and SafeRite are trademarks of Seagate Technology. Other product names are registered trademarks or trademarks of their owners.

Seagate reserves the right t o change, without notice, produc t offerings or specifications. No part of this publication may be reproduced in any form without written permission from Seagate Technology, Inc.

Marathon 2250 and Marathon 1680 Product Manual iii

Contents

Introdu c tion . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Specification summary table . . . . . . . . . . . . . . . . . . . 2

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

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

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

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

1.2 Physical organization . . . . . . . . . . . . . . . . . . . . 6

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

1.4 Physical characteristics . . . . . . . . . . . . . . . . . . . 7

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

1.6 Start times . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1.7 Power specifications . . . . . . . . . . . . . . . . . . . . . 8

1.7.1 Power consumption . . . . . . . . . . . . . . . . . . 8

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

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

1.7.4 Voltage tolerance . . . . . . . . . . . . . . . . . . . . 10

1.7.5 Power-management modes . . . . . . . . . . . . . . 10

1.8 Environ mental tolerances . . . . . . . . . . . . . . . . . . 12

1.8.1 Ambient temperature . . . . . . . . . . . . . . . . . . 12

1.8.2 Temperature gradient . . . . . . . . . . . . . . . . . 12

1.8.3 Humidity . . . . . . . . . . . . . . . . . . . . . . . . 12

1.8.4 Altitude . . . . . . . . . . . . . . . . . . . . . . . . . 12

1.8.5 Shock . . . . . . . . . . . . . . . . . . . . . . . . . . 12

1.8.6 Vibration . . . . . . . . . . . . . . . . . . . . . . . . 13

1.9 Drive acoustics . . . . . . . . . . . . . . . . . . . . . . . 14

1.10 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . 14

1.11 Agency certification . . . . . . . . . . . . . . . . . . . . 15

1.11.1 Safety certification . . . . . . . . . . . . . . . . . . 15

iv Marathon 2250 and Marathon 1680 Product Manual

1.11.2 Electromagnetic Compatibility . . . . . . . . . . . . 15

1.11.3 FCC verification . . . . . . . . . . . . . . . . . . . . 15

2.0 Drive mounting and configuration . . . . . . . . . . . . . . 17

2.1 Handling and static-discharge precautions . . . . . . . . . 17

2.2 Jumper settings . . . . . . . . . . . . . . . . . . . . . . . 17

2.2.1 Master/slave configuration . . . . . . . . . . . . . . . 17

2.3 Remote LED configuration . . . . . . . . . . . . . . . . . 19

2.4 Drive mounting . . . . . . . . . . . . . . . . . . . . . . . 19

2.5 ATA interface connector . . . . . . . . . . . . . . . . . . . 23

3.0 ATA Attachment-3 Interface (ATA-3) . . . . . . . . . . . . . 25

3.1 ATA interface signals and connector pins . . . . . . . . . . 25

3.1.1 AT bus signal levels . . . . . . . . . . . . . . . . . . 25

3.2 ATA Interface commands . . . . . . . . . . . . . . . . . . 27

3.2.1 Supported ATA commands . . . . . . . . . . . . . . . 27

3.2.2 Identify Drive command . . . . . . . . . . . . . . . . 29

3.2.3 Set Features command . . . . . . . . . . . . . . . . 32

3.2.4 S.M.A.R.T. commands . . . . . . . . . . . . . . . . . 34

3.2.5 Drive Security commands . . . . . . . . . . . . . . . 35

Appendix. Compatibility Notes . . . . . . . . . . . . . . . . . . 37

Marathon 2250 and Marathon 1680 Product Manual v

Figures

Figure 1. Typical startup and operation current profile. . . . . . . . 9

Figure 2. Connector and master/slave jumper setup . . . . . . . . 18

Figure 3. Drive mounting dimensions—side and bottom view. . . . 20

Figure 4. Drive mounting dimensions—end view . . . . . . . . . . 21

Figure 5. ATA Interface connector dimensions . . . . . . . . . . . 23

Figure 6. I/O pins and supported ATA signals . . . . . . . . . . . 26

vi Marathon 2250 and Marathon 1680 Product Manual

Marathon 2250 and Marathon 1680 Product Manual 1

Introduction

The Marathon 2250 (ST92255AG) and Marathon 1680 (ST91685AG) provide very high storage capacity in a small, 17-mm hard disc drive.

Key Features:

• Low power consumption

• Com pact, SFF-8200-compati ble form-fact or

• High r otat ional speed for fast internal data transfer

• Quiet operation

• S afeRite shock protection

• S upport for PIO modes 0, 1, 2, 3 and 4, as well as single-word and

multiword DMA modes 0, 1 and 2

• High instantaneous (burst) data-transfer rates (up to 16.6 Mbytes per second) using PIO mode 4 and DMA mode 2

• 103-Kbyte adaptive multisegmented cache

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

• Fast microprocessor for low command overhead

• Support for S.M.A.R.T. drive monitoring and reporting

• S uppor t for drive password security

• Support for Read/Write Multiple commands

• S upport for autodetection of master/slave drives using cable-select

(CSEL) and DASP– signals

2 Marathon 2250 and Marathon 1680 Product Manual

Specification summary table

The specifications listed in this table are for quick reference. For details on a specification measurement or definition, see the appropriate section of this manual.

Drive Specification

Guaranteed Mby te s (1 Mbyte=106 bytes) 2,250 1,680 Guaranteed sectors (LBA mode) 4,394,940 3,282,490 Bytes per sector 512 Default sectors per track 63 63 Default read/write heads 16 16 Default cylinders 4,360 3,256 Physical read/wr ite he ads 10 8 Discs 5 4 Recording densit y (bit s/ i nch, m a x) 120,000 Track density (tracks/inch) 5,555

Areal density (Mbit s/ in ch Spindle speed (RPM) 4,508 Internal data-tra nsf er rate (Mbit s/ sec max ) 60.8 I/O data-transf er ra te (M byt es /s ec m ax) 16.6 A TA data-transf er mo des supported PIO modes 0, 1, 2, 3, 4 and

Cache buffer (Kby te s) 103

) 666

Marathon

2250

multiword DMA modes 0, 1, 2

Marathon

1680

Height (mm max) 17.2 Width (mm max) 70.1 Length (mm max) 100.45 Weight (grams typical) 204 200 Track-to-track seek time (msec typical) 4 (read), 5 (write) Average see k time (m se c ty pi cal) 12 (read), 14 (wr ite) Full-stroke seek t ime ( ms ec m ax) 26 (read), 28 (wr ite) Average latency (msec) 6.65

Marathon 2250 and Marathon 1680 Product Manual 3

Drive Specification

Power-on to ready (sec typical) 3.5 Standby to ready (sec typical) 2 Spinup current (pe ak) 1.3 amps Read/Writ e power and current (typical) 2.5 watts, 0.5 am ps Seek power and curren t (ty pical ) 2.5 watts, 0.5 am ps Idle mode power and current (typical) 1.2 watts, 0. 24 am ps Standby mode power and current (typical) 0.3 watts, 0. 06 am ps Sleep mode power an d cur ren t (typi cal) 0.1 watts, 0.02 am ps Voltage tolerance (including noise) Ambient temperature (°C) 5 to 55 (op.), –40 to 70 (nonop.) Temperature gradient (°C per hour max) 30 Relative humidity (ope rati ng) 8% to 80%

Wet bulb temper at ur e (°C max) 29.4 (op.), 40 (nono p. ) Altitude (meters ab ove m ean sea level,

max)

Marathon

2250

+5 volts, ± 5%

(10% per hour max grad.)

–300 to 3,040 (op. ),

–300 to 12,19 0 (no nop. )

Marathon

1680

Shock, operating (G s ma x) 125 (2 msec) Shock, nonoperati ng (Gs max , 2 msec ) 350 Vibration (Gs max at 5– 400 H z,

without physica l da ma ge or los s of dat a) Drive acoustics (bel s— sound power)

Idle mode (dBA—sound pressure) Drive acoustics (bel s— sound power )

Seek mode (dBA—sound pressure) Nonrecoverable rea d error s 1 per 10 Mean time between failures

(power-on hours) Contact start-st op cy cl es

(40°C, ambient humidi t y) Service life (years) 5

0.75 (op.)

4.0 (nonop.)

3.5 (typical), 3.8 (max ) 24 (typical), 28 (max)

3.8 (typical), 4.1 (max ) 26 (typical), 30 (max)

bits read

300,000

50,000

4 Marathon 2250 and Marathon 1680 Product Manual

Marathon 2250 and Marathon 1680 Product Manual 5

1.0 Drive specifications

Unless otherwise noted, all specific ations are measured under ambient conditions, at 40°C, at sea level and nominal power.

1.1 Formatted capacity

Marathon 2250 Marathon 1680

Guaranteed Kbytes 2,250,209 1,680,634 Guaranteed sectors

(LBA mode) Bytes per sector 512 512

DOS systems are not able to access m ore than 528 M bytes unless:

Note.

1) the host system supp orts and is conf igured for LBA addressi ng or for extended CHS addressing , or 2) the host system contains a specialized drive controller, or 3) the host system runs BIOS translation software. In addition, older BIOSs cannot address more than

2.1 Gbytes ( m ore than 4,096 cylinders) on a single partition. If you encounte r this probl em with t he ST92255A G, divide the drive int o two partitions or u pgrade your BI OS. Please cont ac t your Seagat e representative for additional information.

4,394,940 3,282,490

1.1.1 Default logical geometry

CHS Mode

Sectors per trac k 63 63 Read/write heads 16 16 Cylinders 4,360 3,256

LBA Mode

When addressing either drive in LBA mode, all blocks (sectors) are consecutively numbered from 0 to

Marathon 2250 Marathon 1680

– 1.

1.1.2 Supported CHS translation geometr ies

The Marathon 2250 supports any translation geometry that satisfies of the following conditions:

• Sectors per track ≤ 63

• Read/write heads ≤ 16

• (Sectors per track) ×

(read/write heads) × (cylinders)

≤ 4,394,880

all

6 Marathon 2250 and Marathon 1680 Product Manual

The Marathon 1680 supports any translation geometry that satisfies of the following conditions:

• Sectors per track ≤ 63

• Read/write heads ≤ 16

• (Sectors per track) ×

(read/write heads)

× (cylinders) ≤ 3,282,048

1.2 Physical organization

Marathon 2250 Marathon 1680

Read/Write heads 10 8 Discs 5 4

1.3 Recordin g and inte rf ace tec hn ology

Interface ATA Recording method 8/9 Recording density (bits/inch) 120,000 Track density (tracks/inch) 5,555

Areal density (Mbits/inch Spindle speed (RPM)

( ± 0.5%)

) 666

4,508

all

Internal data-transfer rate (Mbits per sec max—ZBR)

I/O data-transfer rate (Mbytes per sec max)

Interleave 1:1 Cache buffer (Kbytes) 103

60.8

16.6 (PIO mode 4 with IORDY)

16.6 (multiword DMA mode 2)

Marathon 2250 and Marathon 1680 Product Manual 7

1.4 Physical characteristics

Marathon 2250 Marathon 1680

Maximum height (inches)

(mm)

Maximum width (inches)

(mm)

Maximum length (inches)

(mm)

Typical weight (ounces)

(grams)

Note.

Maximum length excludes I/O connector pins that may extend up to 0.015 inches beyond the edge of the head/disc assembly, per SFF 8004 specification.

0.676 (17.2)

2.76 (70.1)

3.955 (100.45)

7.19 (204)

0.676 (17.2)

2.76 (70.1)

3.955 (100.45)

7.05 (200)

1.5 Seek time

All seek times are measured using a 25 MHz 486 AT computer (or faster) with a 8.3 MHz I/O bus. The measurements are taken with nominal power at sea level and 40°C ambient temperature. 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.

• Full-stroke seek time is one-half the time needed to seek from the first data cylinder to the maximum data cylinder and back to the first data cylinder. The full-stroke typical value is determined by averaging 100 full-stroke seeks in both directions.

Seek type Typical read

(msec)

Track-to-track 4 5 Average 12 14 Full-stroke 26 28 Average latency: 6.65 msec

Typical write (msec)

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