Maxtor 545XE, 275XE Product Manual
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . .
Medalist XE Family
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . .
275xe, 545xe
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . .
ATA Interface Drives
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . .
Product Manual
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . .
Medalist XE Family
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . .
275xe, 545xe
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . .
ATA Interface Drives
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . .
Product Manual
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..
© 1994 Seagate Technology, Inc. All rights reserved
Publication Number: 36283-001, Rev. B
October 1994
Seagate, Seagate Technology and the Seagate logo are registered
trademarks of Seagate Technology, Inc. SeaCache 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.
Medalist XE Family Product Manual, Rev. B iii
Contents
1.0 Specification summary . . . . . . . . . . . . . . . . . . . . . 1
1.1 Format configuration . . . . . . . . . . . . . . . . . . . . . . 1
1.2 Physical organization . . . . . . . . . . . . . . . . . . . . . 2
1.3 Functional specifications . . . . . . . . . . . . . . . . . . . 3
1.4 Drive dimensions . . . . . . . . . . . . . . . . . . . . . . . 3
1.5 Seek time . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.6 Start and stop time . . . . . . . . . . . . . . . . . . . . . . 4
1.7 Power specifications . . . . . . . . . . . . . . . . . . . . . . 4
1.7.1 Voltage tolerances . . . . . . . . . . . . . . . . . . . . 4
1.7.2 Conducted noise . . . . . . . . . . . . . . . . . . . . . 5
1.7.3 Power-management modes . . . . . . . . . . . . . . . 5
1.8 Environment . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.8.1 Ambient temperature . . . . . . . . . . . . . . . . . . . 7
1.8.2 Temperature gradient . . . . . . . . . . . . . . . . . . . 7
1.8.3 Relative humidity . . . . . . . . . . . . . . . . . . . . . 8
1.8.4 Altitude . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.8.5 Shock and vibration . . . . . . . . . . . . . . . . . . . 8
1.9 Acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.10 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.11 Auto-park . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.12 Agency listings . . . . . . . . . . . . . . . . . . . . . . . . 9
1.13 FCC verification . . . . . . . . . . . . . . . . . . . . . . . 9
2.0 Configuration and mounting . . . . . . . . . . . . . . . . . 11
2.1 Handling and static-discharge precautions . . . . . . . . . 11
2.2 The ATA interface connector . . . . . . . . . . . . . . . . 12
2.3 Power connector . . . . . . . . . . . . . . . . . . . . . . . 12
2.4 Master/slave jumper block . . . . . . . . . . . . . . . . . . 12
2.4.1 Single-drive configuration . . . . . . . . . . . . . . . 13
2.4.2 Two-drive configuration . . . . . . . . . . . . . . . . . 13
2.4.3 Cable-select configuration . . . . . . . . . . . . . . . 14
iv Medalist XE Family Product Manual, Rev. B
2.4.4 Factory-test configuration . . . . . . . . . . . . . . . . 15
2.5 Optional drive activity LED . . . . . . . . . . . . . . . . . 15
2.6 Mounting the drive . . . . . . . . . . . . . . . . . . . . . . 16
3.0 ATA interface . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.1 ATA interface connector pin assignments . . . . . . . . . 19
3.2 Bus signal levels . . . . . . . . . . . . . . . . . . . . . . . 19
3.3 Supported ATA commands . . . . . . . . . . . . . . . . . 21
3.3.1 Identify Drive command (EC
3.3.2 Set Features command (EF
3.3.3 Set Multiple Mode command (C6
3.3.4 Read Multiple command (C4
3.3.5 Write Multiple command (C5
) . . . . . . . . . . . . . 23
H
) . . . . . . . . . . . . . 26
H
) . . . . . . . . . . 28
H
) . . . . . . . . . . . . . 28
H
) . . . . . . . . . . . . . 29
H
3.4 Onboard drive diagnostics . . . . . . . . . . . . . . . . . . 30
3.5 ECC performance tests . . . . . . . . . . . . . . . . . . . 30
3.6 Supported BIOS . . . . . . . . . . . . . . . . . . . . . . . 31
Medalist XE Family Product Manual, Rev. B v
Figures
Figure 1. Typical startup current profile . . . . . . . . . . . . . . . . 7
Figure 2. The drive interface connector . . . . . . . . . . . . . . . 12
Figure 3. Connectors and jumpers . . . . . . . . . . . . . . . . . 13
Figure 4. Connecting cable-selected drives . . . . . . . . . . . . . 15
Figure 5. Standard mounting dimensions . . . . . . . . . . . . . . 17
Figure 6. Metric mounting dimensions . . . . . . . . . . . . . . . 18
Figure 7. ATA connector pin assignments . . . . . . . . . . . . . 20
Medalist XE Family Product Manual, Rev. B 1
1.0 Specification summary
The Medalist 275xe and 545xe drives use an ATA interface. The interface
conforms to
ATA Timing Extension for Local Bus Attachments, Rev. 2.0
Identify Drive Data for Drives Under 8 GB
National Standards AT Attachment Interface X3.310-948D, Rev. 2E.
Note. The Medalist drives are referred to by their model numbers
1.1 Format configuration
Seagate Medalist drives are low-level formatted at the factory. You do
not need to low-level format the drive.
The drives support LBA addressing and are configured in translation
mode at the factory. (You can verify the number of cylinders, sectors per
track and heads and the total number of sectors using the Identify Drive
(EC
) command.) The table below shows the factory configurations.
H
Cylinders 761 1,057
Heads 14 16
Sectors per track 50 63
Formatted capacity (Mbytes*) 272.7 545.5
Total sectors 532,700 1,065,456
ATA (AT Attachment) Interface X3.221, Rev. 4; SFF 8011:
;
SFF 8019:
and
Draft Proposal American
throughout this manual. The Medalist 275xe is referred to as the
ST3295A. The Medalist 545xe is referred to as the ST3660A.
ST3295A ST3660A
* One Mbyte equals one million bytes.
You can use other values to configure the drive provided the following
conditions are met:
• The number of sectors per track does not exceed 256.
• The number of sectors per track and the number of heads satisfy the
following relationship:
16 ≤ (sectors per track) × (heads) ≤ 4,096.
• The total sectors do not exceed the physical capacity of the drive. You
can calculate the total sectors with the following formula:
total sectors = (logical heads) × (logical sectors per track) × (logical
cylinders).
2 Medalist XE Family Product Manual, Rev. B
Note. Some DOS and BIOS pairings can limit the accessible hard disc
capacity to 528 Mbytes. These systems do not acknowledge
more than 1,024 cylinders in the translation geometry. If more
than 1,024 cylinders are specified in the System Setup, the
system may ignore the additional cylinders or overwrap the initial
1,024 with the additional cylinders. In an overwrap condition, only
the overwrapping cylinders are used to determine the drive
capacity. The overwrap condition for the ST3660A is:
1,057 – 1,024 = 33 cylinders for 17.3 Mbytes.
There are several solutions for this limitation:
• Use a BIOS that supports logical block addressing (LBA) or
extended cylinder-head-sector (CHS) addressing.
• Use a host adapter that supports more than 528 Mbytes.
• Use installation software or a software device driver that allows
access to the drive’s full capacity to install the drive.
1.2 Physical organization
ST3295A ST3660A
Heads 2 4
Discs 1 2
Medalist XE Family Product Manual, Rev. B 3
1.3 Functional specifications
Interface
Internal data transfer rate (Mbits/sec)
External data transfer rate (Mbytes/sec)
PIO Mode 3
DMA Mode 1
Spindle speed ± 0.5% (RPM)
SeaCache buffer (Kbytes)
Zone Bit Recording method
Bytes per sector
Recording density, max (BPI)
Flux density, max (FCI)
Track density, max (TPI)
* Represents the external burst data transfer rate.
ATA
20.0 to 35.8
11.1*
13.3*
3,811
120
RLL (1,7)
512
63,225
42,150
3,285
1.4 Drive dimensions
Height (max) 1.00 inch (25.4 mm)
Width (max) 4.02 inches (102.1 mm)
Depth (max) 5.77 inches (146.6 mm)
Weight (max) 1.3 lb (0.59 Kg)
1.5 Seek time
All performance measurements are taken using a 25-MHz 486 AT
computer (or faster) with an 8.3-MHz I/O bus. The measurements are
taken using nominal power at sea level and at 25°C ambient temperature.
The specifications in the table on page 4 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.
4 Medalist XE Family Product Manual, Rev. B
• 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 average is determined by measuring 100
full-stroke seeks in both directions.
Model
ST3295A 5 14 34 7.87
ST3660A 5 14 34 7.87
Track-to-track
typ (msec)
Average
typ (msec)
Full-stroke
typ (msec)
Latency
(msec)
1.6 Start and stop time
Within 10 seconds, the drive is ready. Typical and maximum start and
stop times are shown in the following table. See Figure 1 on page 7 for
the typical startup current profile.
Typical Maximum
Start time 7 sec 10 sec
Stop time 6 sec 9 sec
1.7 Power specifications
Except during a write operation, you can apply power to the drive or
remove power from the drive in any sequence without losing data or
damaging the drive.
1.7.1 Voltage tolerances
Voltage tolerance
including noise
+5V +12V
± 5% ± 5%
± 10% during spinup
Loading...