Seagate Medalist SL User manual

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Medalist SL Family
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Medalist 540sl, Medalist 851sl
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Medalist 1080sl, Medalist 1270sl
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ATA Interface Drives
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Product Manual
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Medalist SL Family
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Medalist 540sl, Medalist 851sl
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Medalist 1080sl, Medalist 1270sl
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ATA Interface Drives
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Product Manual
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© 1996 Seagate Technology, Inc. All rights reserved
Publication Number: 36331-301, Rev. A, June 1996
Supersedes Publication Numbers 36331-1
xx and 36304- xxx
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
registered 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.
4 Medalist SL Family Product Manual, June 1996

Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Quick specification chart . . . . . . . . . . . . . . . . . . . . . . 3
1.0 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 Formatted capacity . . . . . . . . . . . . . . . . . . . . . . . 5
1.1.1 Standard configuration . . . . . . . . . . . . . . . . . . 5
1.1.2 Physical organization . . . . . . . . . . . . . . . . . . . 6
1.2 Functional specifications . . . . . . . . . . . . . . . . . . . . 7
1.3 Physical dimensions . . . . . . . . . . . . . . . . . . . . . . 7
1.4 Seek time . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.5 Start and stop times . . . . . . . . . . . . . . . . . . . . . . 8
1.6 Typical power-up and power-down sequence . . . . . . . . . 8
1.6.1 Power-up sequence . . . . . . . . . . . . . . . . . . . . 8
1.6.2 Power-down sequence . . . . . . . . . . . . . . . . . . 9
1.6.3 Auto-park . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.7 Power specifications . . . . . . . . . . . . . . . . . . . . . 10
1.7.1 Power consumption . . . . . . . . . . . . . . . . . . . 10
1.7.2 Voltage tolerance . . . . . . . . . . . . . . . . . . . . 11
1.7.3 Input noise . . . . . . . . . . . . . . . . . . . . . . . . 12
1.8 Environmental specifications . . . . . . . . . . . . . . . . . 12
1.8.1 Ambient temperature . . . . . . . . . . . . . . . . . . 12
1.8.2 Temperature gradient . . . . . . . . . . . . . . . . . . 12
1.8.3 Altitude . . . . . . . . . . . . . . . . . . . . . . . . . 12
1.8.4 Relative humidity . . . . . . . . . . . . . . . . . . . . 12
1.8.5 Shock and vibration . . . . . . . . . . . . . . . . . . . 13
1.9 Acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
1.10 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . 14
1.11 Agency listings . . . . . . . . . . . . . . . . . . . . . . . 15
1.12 FCC verification . . . . . . . . . . . . . . . . . . . . . . . 15
Medalist SL Family Product Manual, June 1996 iii

2.0 Configuring and mounting the drive . . . . . . . . . . . . . 17
2.1 Handling and static-discharge precautions . . . . . . . . . 17
2.2 I/O connector . . . . . . . . . . . . . . . . . . . . . . . . 18
2.3 Options jumper block . . . . . . . . . . . . . . . . . . . . . 18
2.3.1 Master/slave configuration . . . . . . . . . . . . . . . 21
2.3.2 Master/slave timing compatibility . . . . . . . . . . . . 21
2.3.3 Remote LED connection . . . . . . . . . . . . . . . . 21
2.3.4 Cable-select option . . . . . . . . . . . . . . . . . . . 22
2.4 Mounting the drive . . . . . . . . . . . . . . . . . . . . . . 23
3.0 ATA interface . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.1 ATA interface connector pin assignments . . . . . . . . . . 25
3.2 Command set . . . . . . . . . . . . . . . . . . . . . . . . 27
3.2.1 Identify Drive command (ECH) . . . . . . . . . . . . . 29
3.2.2 Set Features command (EFH) . . . . . . . . . . . . . . 31
3.2.3 Idle and Set Idle Timer (FAH) . . . . . . . . . . . . . . 33
3.2.4 Active and Set Idle Timer command (FBH) . . . . . . . 34
3.2.5 Auto Relocation . . . . . . . . . . . . . . . . . . . . . 34
3.2.6 Execute S.M.A.R.T. Function command (B0H) . . . . . 34
Appendix. Timing diagrams . . . . . . . . . . . . . . . . . . . . 35
iv Medalist SL Family Product Manual, June 1996

Figures
Figure 1. Typical +12V startup current profile . . . . . . . . . . . . 8
Figure 2. ATA interface connector . . . . . . . . . . . . . . . . . 18
Figure 3. Drive connectors . . . . . . . . . . . . . . . . . . . . . 19
Figure 4. Options jumper block settings . . . . . . . . . . . . . . . 20
Figure 5. Connecting cable-selected drives . . . . . . . . . . . . . 22
Figure 6. Mounting dimensions . . . . . . . . . . . . . . . . . . . 24
Figure 7. ATA interface connector pin assignments . . . . . . . . 26
Figure 8. Programmed I/O timing without IORDY . . . . . . . . . . 35
Figure 9. Programmed I/O timing with IORDY . . . . . . . . . . . 36
Figure 10. Multiword DMA timing . . . . . . . . . . . . . . . . . . 37
Medalist SL Family Product Manual, June 1996 v

Introduction
This manual describes the functional, mechanical and interface specifi-
cations for the Medalist540sl, 851sl, 1080sl and 1270sl hard disc
drives. The drives are referred to throughout this manual by their model
numbers: ST5540A for the Medalist 540sl, ST5851A for the Medalist
851sl,ST51080A for the Medalist1080sland ST51270Afor the Medalist
1270sl.
The drives combine features used in the Decathlon drives, such as Fast
ATA-2 capability, 5,376-RPM spindle speed, embedded servo and the
mini 3.5-inch footprint with new technology and more cost-efficient
design to provide high performance, highcapacity, low noise, energy-ef-
ficiency and superior value.
The drives are designed to ensure fast data-throughput between the
drive and the host. Fast ATA-2 capability means that the drives support
PIO mode 4 and multiword DMA mode 2 and multiple block read/write.
When the host chooses PIO mode 4 or multiword DMA mode 2, the
drives respond with burst data-transfer rates of up to 16.6 Mbytes per
second. Multiple block read/write allows the drive to gather several
blocks of data in cache and transfers them in a single burst.
Otherfeaturesthedriveshavethatpromotefastdata-throughputinclude
embedded servo technology to ensure quick and accurate access to
information on the drive without thermal recalibration interruptions, a
16-bit internal microprocessor and an intelligent controller that provides
data streaming—direct data transfers between the host and the drive
without microprocessor intervention. These features increase the sus-
taineddata-transferrate,facilitatingvideoplaybackandothermultimedia
operations. Coupled with the 854-Mbyte capacity of the ST5851A, the
1.08-Gbyte capacity of the ST51080A and the 1.28 Gbytes of the
ST51270A (more than enough capacity to download a complete CD-
ROM), these features make true multimedia-ready drives.
The drives support the power modes defined in the ATA-2 standard.
Standby and Sleep modes reduce powerconsumption to a low 0.5 watts
(typical). The drives enter power-saving modes at the request of the
computerandcanbeprogrammedto automaticallyenterIdleorStandby
modes. (A complete listing of the ATA commands the drives support is
found in the table on page 27. The ATA commands that have Seagate-
unique applications and the Seagate-unique commands the drives use
are discussed in Section 3.0 on page 25.)
The drives are designed for the standard 3.5-inch footprint but have a
slim 0.75-inch high (19-mm) profile and a shorter 5.0-inch depth profile.
Even thoughthe overallsizeof the drivesis reduced, the topand bottom
mounting holes are placed in strict compliance with the SFF committee
standards for the 3.5-inch form-factor. This size reduction gives the
Medalist SL Family Product Manual, June 1996 1

designer or integrator more room for air circulation, other peripherals or
a smaller drive bay. In addition, the smaller size and a redesigned top
cover have improved the acoustics for the 5,376-RPM drive. The idle
acoustic sound level is 30 dBA.
The following is a summary of the drives’ features:
Capacity
•540, 854, 1,080 and 1,282 Mbytes formatted
•One-disc and two-disc formats
•LBA translation support
Performance
•Fast ATA-2. (Supports multiword DMA modes 0,1, 2 and PIO modes
0, 1, 2, 3 and 4 for up to 16.6-Mbyte-per-second transfer rates.
Supports multiple block read/write.)
•5,376-RPM rotational speed
•128-Kbyte segmented buffer
•10.5-msec average seek time
•16-bit microprocessor
•Data streaming
Energy efficiency
•Supports ATA-2 power-management modes: Active, Idle, Standby
and Sleep
•0.5 watt typical power dissipation rating in Standby and Sleep modes
Acoustics
•30-dBA idle acoustic sound level
2 Medalist SL Family Product Manual, June 1996