Seagate ST3660A - Medalist 545 MB Hard Drive User manual

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Medalist XE Family
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275xe, 545xe
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ATA Interface Drives
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Product Manual
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Medalist XE Family
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275xe, 545xe
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ATA Interface Drives
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Product Manual
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© 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
SeagateTechnology, Inc. Other product names are trademarks or regis-
tered 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
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
Medalist XE Family Product Manual, Rev. B iii

2.4.4 Factory-test configuration . . . . . . . . . . . . . . . . 15
2.5 Optional drive activity LED . . . . . . . . . . . . . . . . . 15
2.6 Mountingthe drive . . . . . . . . . . . . . . . . . . . . . . 16
3.0 ATA interface . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.1 ATA interface connector pin assignments . . . . . . . . . 19
3.2 Bus signal levels . . . . . . . . . . . . . . . . . . . . . . . 19
3.3 SupportedATA commands . . . . . . . . . . . . . . . . . 21
3.3.1 Identify Drive command (ECH) . . . . . . . . . . . . . 23
3.3.2 Set Features command (EFH) . . . . . . . . . . . . . 26
3.3.3 Set Multiple Mode command (C6H) . . . . . . . . . . 28
3.3.4 Read Multiple command (C4H) . . . . . . . . . . . . . 28
3.3.5 Write Multiple command (C5H) . . . . . . . . . . . . . 29
3.4 Onboarddrive diagnostics . . . . . . . . . . . . . . . . . . 30
3.5 ECC performance tests . . . . . . . . . . . . . . . . . . . 30
3.6 SupportedBIOS . . . . . . . . . . . . . . . . . . . . . . . 31
iv Medalist XE Family Product Manual, Rev. B

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 v

1.0 Specification summary
TheMedalist275xeand545xedrivesuseanATAinterface.Theinterface
conforms to
ATA (AT Attachment) Interface X3.221, Rev. 4; SFF 8011:
ATA Timing Extension for Local Bus Attachments, Rev. 2.0
; SFF 8019:
Identify Drive Data for Drives Under8 GB
and Draft Proposal American
National Standards AT Attachment Interface X3.310-948D, Rev. 2E.
Note. The Medalist drives are referred to by their model numbers
throughoutthis manual.The Medalist 275xe is referred to as the
ST3295A. The Medalist 545xe isreferred to as the ST3660A.
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
(ECH) command.) The table below shows the factory configurations.
ST3295A ST3660A
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
*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 numberof headssatisfy the
following relationship:
16
≤
(sectors per track)
×
(heads)
≤
4,096.
•Thetotal sectors donot exceedthe physicalcapacity of thedrive. You
can calculate the total sectors with the following formula:
total sectors = (logical heads) × (logical sectors per track) × (logical
cylinders).
Medalist XE Family Product Manual, Rev. B 1

Note. Some DOS and BIOS pairingscan limit the accessible harddisc
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 theadditional cylindersoroverwrap the initial
1,024withtheadditional cylinders.Inanoverwrapcondition,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.
•Useinstallationsoftwareorasoftwaredevicedriverthatallows
access to the drive’s full capacity to install the drive.
1.2 Physical organization
ST3295A ST3660A
Heads 2 4
Discs 1 2
2 Medalist XE Family Product Manual, Rev. B

1.3 Functional specifications
Interface ATA
Internal data transfer rate (Mbits/sec) 20.0 to 35.8
External data transfer rate (Mbytes/sec)
PIO Mode 3 11.1*
DMA Mode 1 13.3*
Spindle speed ±0.5% (RPM) 3,811
SeaCachebuffer (Kbytes) 120
Zone Bit Recording method RLL (1,7)
Bytes per sector 512
Recording density, max (BPI) 63,225
Flux density, max (FCI) 42,150
Track density, max (TPI) 3,285
* Represents the external burst data transfer rate.
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
takenusingnominalpoweratsealevelandat25°Cambienttemperature.
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.
•Averageseektimeisatruestatisticalrandomaverageofatleast5,000
measurements of seeks between random tracks, less overhead.
Medalist XE Family Product Manual, Rev. B 3

•Full-strokeseektimeisone-halfthe timeneededto 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 Track-to-track
typ (msec) Average typ (msec) Full-stroke typ (msec) Latency (msec)
ST3295A 5 14 34 7.87
ST3660A 5 14 34 7.87
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
+5V +12V
Voltage tolerance
including noise ±5% ±5% ±10% during spinup
4 Medalist XE Family Product Manual, Rev. B

1.7.2 Conducted noise
The drive is expected to operate with a maximum of:
•150 mV peak-to-peak triangular-wave injected noise at the power
connector.Thefrequencyis10Hzto100KHzwithequivalentresistive
loads.*
•100 mV peak-to-peak triangular-wave injected noise at the power
connector. The frequency is 100 KHz to 10 MHz with equivalent
resistive loads.*
* Equivalent resistance is calculated by dividing the respective volt-
age by the typical RMS read/write current.
1.7.3 Power-management modes
The drive supports the followingpower-management modes:
•Active mode. The drive is seeking, reading or writing.
•Idle mode. When the drive receives an Idle Immediate command,or
the idle timer counts down to zero, the drive enters the Idle mode. In
Idle mode, the spindle remains up to speed. The SeaCache buffer
remains enabled, and the drive accepts all commandsand returnsto
the Active mode whenever a seek, read or write operation is needed.
•Standby mode. When the drive receivesa Standby Immediate com-
mand,orthestandbytimerhascounteddownto zero,thedriveenters
the Standby mode. In the Standby mode, the SeaCache buffer re-
mains enabled, the heads are parked in the shipping zone and the
spindleisstopped.Thedriveacceptsallcommandsandreturnstothe
Active mode whenever a seek, read or write operation is needed.
•Sleep mode. When the drive receivesa Sleep Immediate command,
it enters the Sleep mode. The heads are parked in the shipping zone
and the spindleis at rest. A hard reset or a soft reset returns the drive
to Active mode. A soft reset preserves the current emulation and
translation parameters.
1.7.3.1 Idle and Standby timers
The drive can enter the Idle mode or the Standbymode by either of two
methods:
•The computer sends an Idle Immediate command or a Standby
Immediate command.
•The idle timer or the standby timer counts down to zero.
Medalist XE Family Product Manual, Rev. B 5

The Idle and Standby timers are disabled at the factory. Use the com-
puter’s setup utility to enable and set the timer delays. When the Idle
timer is enabled, it is initialized each time the drive completes a read,
write or seek.
If the Idle timer reaches zero before any drive activity is required, the
drive goes into the Idle mode, and the Standby timer, if it is enabled, is
initialized. If the Standby timer reaches zero before any drive activity is
required, the drive goes into the Standby mode. See the
SeagateATA
Interface Reference Manual
, publication number 36111- xxx for details.
In both the Idleand Standbymodes,the drive accepts allcommandsand
returns to theActivemodeany timedisc accessis necessary. There may
be a slight delay between the time the drive receives the command and
drive activity begins.
1.7.3.2 Power dissipation
The following guidelines are used to measure power dissipation:
•All measurements are taken at sealevel with anambienttemperature
of 25°C.
•All typical measurements are taken using nominal voltages; the peak
startup power is measured using the nominal voltages.
•Seek current measurements are takenusingan RMS meter whilethe
drive is randomly seeking with two spindle rotations between each
seek.
Mode Current (amps) Power (watts)
+12V +5V
Spinup (peak) 1.2 0.35 8.52
Active
Seeking (typ) 0.34 0.23 5.23
Read/write (typ) 0.145 0.32 3.34
Idle1(typ) 0.12 0.085 1.865
Standby1(typ) 0.025 0.085 0.725
Sleep1(typ) 0.025 0.070 0.650
1. These power dissipation values apply only when power management
is enabled. To enable power management, use the computer setup
utility.
2. Spinup power is averaged over 3 seconds.
6 Medalist XE Family Product Manual, Rev. B

1.8 Environment
The acceptable environmental conditions for the drive are specified
below. The specifications in this section are defined as follows:
•Operating specifications assume that the drive is poweredup.
•Nonoperating specifications assume that the drive is packaged as it
was shipped from the factory.
1.8.1 Ambient temperature
Operating 5°to 55°C (41°to 131°F)
Nonoperating –40°to 70°C (–104°to 158°F)
1.8.2 Temperature gradient
Operating(max) 20°C per hour (36°F per hour)
Nonoperating (max) 30°C per hour (54°F per hour)
Time (seconds)
2.0 4.0 6.0 8.0
400
600
800
1,000
1,200
200
10.0 12.0 14.0 16.0 18.0 20.0
Current mA
Figure 1. Typical startup current profile
Medalist XE Family Product Manual, Rev. B 7

1.8.3 Relative humidity
Operating 8% to 80% noncondensing
Maximum wet bulb 29.4°C (85.0°F)
Nonoperating 5% to 95% noncondensing
Maximum wet bulb 40.0°C (104.0°F)
1.8.4 Altitude
Operating –1,000 ft to 10,000 ft (–305 m to 3,050 m)
Nonoperating –1,000 ft to 40,000 ft (–305 m to 12,200 m)
1.8.5 Shock and vibration
Shock measurements are based on an 11 msec, half sine wave shock
pulse, notto be repeated morethantwice persecond.Thespecifications
in the table below are defined as follows:
•During normal operating shock and vibration, the drive sustains no
physical damage andreads and writes data without errors.
•During abnormal operating shock and vibration, the drive sustains no
physical damage, but performance is adversely affected.
•During nonoperating shock and vibration, the read/write heads are in
the shipping zone and the drive sustains no physical damage.
Normal
operating Abnormal operating Nonoperating
Shock 2.0 Gs 10.0 Gs 75.0 Gs
5–22 Hz vibration 0.020-inch
displacement
peak-to-peak
0.030-inch
displacement
peak-to-peak
0.160-inch
displacement
peak-to-peak
22–300 Hz vibration 1.0 G
peak-to-peak 1.5 Gs peak-to-peak 8.0 Gs peak-to-peak
1.9 Acoustics
Sound pressure is measured at idle from 1 meter above the drive top
cover.
Sound pressure, typ 29 dBA
Sound pressure, max 33 dBA
8 Medalist XE Family Product Manual, Rev. B

1.10 Reliability
The MTBF and contact start-stop specification assumes nominal power
at sea level with an ambienttemperature of 25°C.
Nonrecoverable errors 1 per 1013 bits read
MTBF 300,000 power-on hours
Contact start-stop (CSS) 40,000 cycles
MTTR 30 minutes
Service life 5 years
1.11 Auto-park
Upon power-down, the read/write heads automatically move to the
shippingzone. Theheadspark insidethemaximum datacylinder. When
power is applied, the heads recalibrate to track 0.
1.12 Agency listings
This drive is listed with agencies as follows:
•UL 1950
•CSA C22.2 No. 0-M91 and CSAC22.2 No. 950-M89
•EN 60950/10.92 as tested by TUV-Rheinland, North America
1.13 FCC verification
The ST3295Aand ST3660A drives are intended to be contained solely
within a personal computer or similar enclosure (not attached to an
external device). As such, a drive is considered to be a subassembly
even when individually marketed to the customer. As a subassembly, no
Federal Communications Commission authorization, verification or cer-
tification of the device is required.
Seagate Technology, Inc. has tested these drives in an enclosure as
describedaboveto ensurethat the totalassembly (enclosure, disc drive,
motherboard, power supply, etc.) does comply with the limits for a
Class B computing device, pursuant to Subpart J of Part 15 of the FCC
rules.Operationwithnoncertifiedassembliesislikelytoresultin interfer-
ence to radio and television reception.
Medalist XE Family Product Manual, Rev. B 9

Radioandtelevisioninterference.Thisequipmentgeneratesanduses
radiofrequency energy and,if not installed andused instrictaccordance
withthemanufacturer’sinstructions,maycauseinterferencetoradioand
television reception.
This equipment is designed to provide reasonable protection against
such interference in a residential installation. However, there is no
guaranteethatinterferencewillnotoccurinaparticularinstallation.If this
equipment does cause interference to radio or television, which can be
determined by turning the equipment on and off, you are encouraged to
try one or more of the following corrective measures:
•Reorient the receiving antenna.
•Move the device to one side or the other of the radio or TV.
•Move the device farther awayfrom the radio or TV.
•Plug the equipment into a different outlet so that the receiver and
computer are on different branch outlets.
Ifnecessary,youshouldconsultyourdealeroranexperiencedradio/tele-
vision technician for additional suggestions. You may find helpful the
followingbookletpreparedbytheFederalCommunicationsCommission:
How to Identify and Resolve Radio-Television Interference Problems.
This booklet is available from the Superintendent of Documents, US
GovernmentPrintingOffice,Washington,DC20402.Refertopublication
number 004-000-00345-4.
10 Medalist XE Family Product Manual, Rev. B

2.0 Configuration and mounting
This section discusses the ATA interface connector and other physical
features of the drive, including mounting.Figure 3 on page13 shows the
location of the followingfeatures:
•The ATA interface connector
•The power connector
•The master/slave jumper block
•The optional drive activity LED
A brief discussion of each starts on page12.
2.1 Handling and static-discharge precautions
After you unpack the drive, and before you install it in a computer, be
careful not to damage it through mishandling. Wool and synthetic cloth-
ing, carpet, plastics and Styrofoamare contributors to the static build-up
that can damagesensitive componentswhen dischargedthroughtouch.
Observe the following standard handling and static-discharge precau-
tions:
Caution:
•Keepthedriveinitsstatic-shieldedbaguntilyouarereadytocomplete
the installation. Do not attach any cables to the drive while it is in its
static-shielded bag.
•Wearagroundedwriststrapthatisproperlyconnectedtoearthground
orgroundyourselffrequentlybytouchingthemetalchassisofapower
supply that is plugged into a grounded outlet when handling the drive
and throughoutthe entire installation procedure.
•Handle the drive by its edges or frame only.
•Thedrive is extremelyfragile—handle it with care.Do not press down
on the drive top cover.
•Always rest the drive on a padded,antistatic surface until you mount
it in the computer.
•Do not touch the connector pins or the printed circuit board. Do not
touch the printed circuit cable between the circuit board and the
head/disc assembly.
•Donotremovethefactory-installedlabelsfromthedriveorcoverthem
with additional labels. If you do, you void the warranty. Some factory-
installedlabelscontaininformationneededtoservicethedrive.Others
are used to seal out dirt and contamination.
Medalist XE Family Product Manual, Rev. B 11

2.2 The ATA interface connector
The drive uses a standard 40-pin interface connector with 2 rows of 20
male pins. Pin 20 is removed. The connector is shown in Figure 2.
For the mating connector, use a 40-pin, nonshielded connector with 2
rows of 20female contacts. We recommend the following part numbers:
AMP 499496
Berg Electronics 66900-040
2.3 Power connector
The drive comes with a standard 4-pin power connector. It is also
available with a standard 3-pin power connector.
2.4 Master/slave jumper block
Figure 3 showsthe location of the master/slave jumperblock and shows
how to install the jumpers for various configurations. The jumper block
accepts 2-mm (0.079-inch) jumpers. A spare jumper is attached to the
jumper block. If you need additional jumpers, use Seagate part number
10562-001 or an equivalent.
Caution. Ifyouuseajumperthatisnotthecorrectsize,youmaydamage
the jumper block and the jumper. Use the jumpers supplied
with the drive.
0.70 ± 0.010
1.90
0.025
± 0.002 0.100 typ
0.230 ± 0.003
2.00
0.235 ± 0.025
0.160 0.070 ± 0.010
0.100 ± 0.010 0.025 ± 0.002
Dimensions are in inches
Figure 2. The drive interface connector
12 Medalist XE Family Product Manual, Rev. B