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
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . .
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

Quick specification chart
The following table serves as a quick reference of performance specifi-
cations for these drives. These and other specifications are discussed
in the Specification summary section following the table.
Drive specification ST5540A ST5851A ST51080A ST51270A
Guaranteed capacity (Mbytes) (×106
bytes) 541.9 854.7 1,083.8 1,282.4
Guaranteed sectors 1,058,400 1,669,248 2,116,800 2,504,880
Bytes per sector 512 512 512 512
Logical cylinders 1,050 1,656 2,100 2,485
Sectors per track 63 63 63 63
Logical read/write heads 16 16 16 16
Physical read/write heads 2 4 4 4
Physical discs 1 2 2 2
Physical cylinders 4,834 4,834 4,834 5,414
Recording density (Kbits per inch) 76.2 76.2 76.2 79.2
Track density (tracks per inch) 4,800 4,800 4,800 5,376
Internal data-transfer rate (Mbits per
sec max) 34.5 to 67.7 34.5 to 67.7 34.5 to 67.7 36.1 to 71.4
Spindle speed (RPM) 5,376
Average latency (msec) 5.58
Track-to-track seek time (msec typi-
cal) 2.0
Average seek time (msec typical) 10.5
Full-stroke seek time (msec typical) 20.0
Ext. transfer rate1(Mbytes per sec)
PIO mode 4 16.6
Ext. transfer rate1(Mbytes per sec)
DMA mode 2 16.6
Cache buffer (Kbytes) 128
Height, inches max (mm) 0.748 (19.0)
Width, inches max (mm) 4.01 (101.9)
Depth, inches max (mm) 5.01 (127.3)
Typical weight, lb (g) 0.750 (340.2)
1. External transfer rates are based on the ATA-2 standard. Actual performance may
exceed the standard. See your Seagate®representative for details.
continued
Medalist SL Family Product Manual, June 1996 3

Drive specification ST5540A ST5851A ST51080A ST51270A
Power-on to ready (sec typical) 8
Spinup current (typical) 1.1A
Seek power (typical) 6.52W
Read/Write power and current
(typical) 4.9W
Idle total power (typical) 3.36W
Standby/Sleep total power (typical) 0.71W
Voltage tolerance (including
noise): +5V ±5%
Voltage tolerance (including
noise): +12V ±5%
Operating temperature (°C) 5° to 55°C
Nonoperating temperature (°C) –40°to 70°C
Operating temperature gradient
(°C per hour max) 20°C
Relative humidity, operating gradient
(max) 10% per hour
Altitude operating –1,000 to 10,000 ft.
Altitude nonoperating –1,000 to 40,000 ft.
Shock, normal operating (Gs max for
11 msec) 2 Gs
Shock, abnormal operating (Gs max
for 11 msec) 10 Gs
Shock, nonoperating (Gs max) 75 Gs
Vibration (Gs max at 22–350 Hz with-
out nonrecoverable errors), operating 0.75 Gs 0 to Peak
Vibration (Gs max at 22–350 Hz with
no physical damage incurred), nonop-
erating
4 Gs
0 to Peak
Drive acoustics, Idle mode (dBA) 30 dBA
Drive acoustics, seeking (dBA) 34 dBA
Nonrecoverable read errors (per bits
transferred) 1013
Mean time between failures (power-
on hours) 300,000
Contact start-stop cycles 40,000
Service life (years) 5
continued from previous page
4 Medalist SL Family Product Manual, June 1996

1.0 Specifications
Unless otherwise noted, all specifications are measured under ambient
conditions, at 25°C, at sea level and nominal power.
1.1 Formatted capacity
Medalist SL drives are low-level formatted at the factory. You cannot
low-level format them.
You can operate the drive using many different address configurations,
provided the number of sectors per track does not exceed 63. The
following tables show CHS and LBA translation geometries for the
standardconfigurations.YoucanverifytheparametersusingtheIdentify
Drive (ECH) command.
1.1.1 Standard configuration
ST5540A CHS LBA
Cylinders 1,050 N/A
Heads 16 N/A
Sectors 63 N/A
Guaranteed sectors 1,058,400 1,058,400
Guaranteed capacity (bytes2) 541,900,800 541,900,800
ST5851A CHS LBA
Cylinders 1,656 N/A
Heads 16 N/A
Sectors 63 N/A
Guaranteed sectors 1,669,248 1,669,248
Guaranteed capacity (bytes2) 854,654,976 854,654,976
2. One Mbyte equals one million bytes.
Medalist SL Family Product Manual, June 1996 5

ST51080A CHS LBA
Cylinders 2,100 N/A
Heads 16 N/A
Sectors 63 N/A
Guaranteed sectors 2,116,800 2,116,800
Guaranteed capacity (bytes2) 1,083,801,600 1,083,801,600
ST51270A CHS LBA
Cylinders 2,485 N/A
Heads 16 N/A
Sectors 63 N/A
Guaranteed sectors 2,504,880 2,504,880
Guaranteed capacity (bytes2) 1,282,498,560 1,282,498,560
1.1.2 Physical organization
ST5540A ST5851A ST51080A ST51270A
Read/write heads 2 4 4 4
Discs 1 2 2 2
6 Medalist SL Family Product Manual, June 1996

1.2 Functional specifications
Model ST5540A ST5851A ST51080A ST51270A
Interface ATA-2
Zone Bit Recording method RLL (1,7)
External data burst-transfer
rate:
DMA mode 2316.6 Mbytes per sec
PIO mode 4416.6 Mbytes per sec
Internal data-transfer rate
(Mbits per sec)
Inner track 34.5 36.1
Outer track 67.7 74.1
Physical cylinders 4,834 5,414
Bytes per sector 512 512
Recording density, max (KBPI) 76.2 79.2
Track density (TPI) 4,800 5,376
Spindle speed (RPM) 5,376 ±0.5%
Cache size (Kbytes) 128
1.3 Physical dimensions
The mounting dimensions are shown in Figure 6 on page 24.
Height, max 0.748 inches (19.0 mm)
Width, max 4.01 inches (101.9 mm)
Depth, max 5.01 inches (127.3 mm)
Weight 0.750 lb (340.2 g)
1.4 Seek time
Seek time is the interval between the time the actuator begins to move
and the time the head is over the target track. Seek time is a true
statistical average of at least 10,000 measurements of seek time. All
measurements for maximum values are taken under nominal conditions
of temperature and voltage with the drive mounted horizontally.
3. See Figure 10 on page 37 for timing specifications.
4. See Figure 9 on page 36 for timing specifications.
Medalist SL Family Product Manual, June 1996 7

The specifications in the table below are defined as follows:
•Track-to-track seek time is the average of all possible single-track
seeks in both directions.
•Average seektime ismeasured by executing seeksin bothdirections
between random cylinders.
•Full-stroke seek time is half the time needed to seek from track 0 to
the maximum track and back to track 0.
Track-to-track
seek time Average/typical seek time Full-stroke seek time Average latency
2.0 msec typ 10.5 msec 20.0 msec typ 5.58 msec
Note. Hostoverhead varies between systems andcannotbespecified.
Driveinternaloverheadismeasuredbyissuingano-motionseek.
Overhead is typically less than 1.0 msec.
1.5 Start and stop times
The drive is ready within 8 seconds after the power is applied. The drive
spindle stops rotating within 7 seconds typical after the power is re-
moved.
1.6 Typical power-up and power-down sequence
A typical power-up and power-down sequence is described below to
assist you in evaluating the drive. It is not a specification.
1.6.1 Power-up sequence
1. Power is applied to the drive.
2. After a delay, the startup current isapplied and the spindle begins to
turn.
3. The accelerating current is applied, causing the spindle speed to
increase.
4. The spindle speed is close to thefinal correct value. The drive begins
to lock in speed-control circuits.
5. The arm-lock mechanism releases the arm.
6. The final speed control lock is achieved.
7. The heads are positioned over track 0 and the drive has completed
its power-up sequence.
8 Medalist SL Family Product Manual, June 1996

1.6.2 Power-down sequence
Caution. Do not move the drive until the motor has come to a complete
stop.
1. The power is turned off.
2. Within 3 seconds, the motor begins to spin down.
3. The read/write heads automatically move to the landing zone, a
designated area beyond the maximum data cylinder.
4. The actuator-lock mechanism locks the arm. This completes the
power-down sequence.
1.6.3 Auto-park
Upon power-down, the read/write heads automatically move to the
landing zone. The heads park beyond the maximum data cylinder and
the actuator-lock mechanism locks the arm. When power is applied, the
heads recalibrate to track 0.
0
200
400
600
800
1,000
1,200
012345678
Figure 1. Typical +12V startup current profile
Milliamps
Seconds
Medalist SL Family Product Manual, June 1996 9

1.7 Power specifications
1.7.1 Power consumption
The drives support Active, Idle, Standby and Sleep power-management
modes.Thepower-managementcommandsthedrivessupportarelisted
inthetableonpage27.Thetablebelowshowstheaveragetypicalpower
consumption rates for each power-management mode. Each mode is
defined in the section following the table.
Allmeasurementsweretakenatthedrive’spowerconnector.AtrueRMS
meter is used to measure all modes except Standby.A DMM is used for
Standby measurements.
Spinup Seeking Read/ write Idle Standby
Current at +12V
Amps peak 1.100 — — — —
RMS amps typ 0.635 0.385 0.242 0.220 0.019
Watts typ 7.62 4.62 2.90 2.64 0.23
Current at +5V
RMS amps typ 0.266 0.380 0.400 0.143 0.096
Watts typ 1.33 1.90 2.00 0.72 0.48
Power
Total watts typ 8.95 6.52 4.90 3.36 0.71
1.7.1.1 Active mode
During the Active mode, the drive is involved in spinup, seeking or
read/write activities.
•Spinup. Spinup mode is entered from the Standby mode. The drive
bringsthespindleanddiscsuptooperatingspeed.Powerinthismode
is measured from power-on to the time the drive is ready for normal
operation.
•Seeking.SeekmodeisenteredfromIdlemode.Theread/writeheads
are moved to a specific location on the disc surface in preparation for
reading from or writing to the disc. Typical power is defined as the
power average of executing random seeks with a 2-revolution (22.2
msec) dwell between Seek commands.
10 Medalist SL Family Product Manual, June 1996

•Read/write. Read/write power and current are measured with the
heads on track. The test cycle consists of writing 16 sectors followed
bya 22.2 msecdelay and reading 16sectorsfollowed bya 22.2msec
delay.
1.7.1.2 Idle mode
The motor is up to speed, the servo electronics are inactive and the
heads are in the landing zone. A time delay is encountered when
executing a command that requires disc access.
The drive enters Idle mode when the host issues anIdle command, Idle
ImmediatecommandorIdleandSetIdleTimercommand.The Idletimer
isa Seagate-uniquefeatureandisdisabledbythefactory.Itisdiscussed
in Section 3.2.3 on page 33.
1.7.1.3 Standby mode
Standby mode is entered from the Idle mode. The drive is fully opera-
tionalthroughtheinterfaceandacceptscommands,buta latencyoccurs
if any command receivedrequires disc access or actuator movement. In
Standby mode, the spindle is stopped, the heads are parked in the
landing zone, the actuator is latched and some of the drive electronics
are powered down.
1.7.1.4 Sleep mode
The spindle is stopped, the heads are parked in the landing zone, the
actuator is latched, and the interface and some of the drive electronics
are powered down. The drive exits sleep mode when the computer
issues a hard or soft reset. The drive returns to Standby mode when the
computer issues a soft reset.
1.7.2 Voltage tolerance
+5V +12V
Voltage tolerance
(including noise) ±5% ±5%
Medalist SL Family Product Manual, June 1996 11

1.7.3 Input noise
+5V +12V
Input noise frequency
(max) 25 MHz 25 MHz
Input noise
(max, peak-to-peak) 100 mV 240 mV
1.8 Environmental specifications
1.8.1 Ambient temperature
Operating 5°to 55°C (41°to 131°F)
Nonoperating –40°to 70°C (–40°to 158°F)
1.8.2 Temperature gradient
Operating 20°C per hour (36°F per hour)
Nonoperating 30°C per hour (54°F per hour)
1.8.3 Altitude
Operating –1,000 to 10,000 ft (–305 to 3,048 m)
Nonoperating –1,000 to 40,000 ft (–305 to 12,192 m)
1.8.4 Relative humidity
Operating 8% to 80% noncondensing
Maximum wet bulb 29.4°C (84.9°F)
Maximum operating
gradient 10% per hour
Nonoperating 5% to 95% noncondensing
Maximum wet bulb 35.0°C (95.0°F)
12 Medalist SL Family Product Manual, June 1996