Seagate ST3250820ACE, ST3400820ACE, ST3300820ACE, ST3320820ACE, ST3500830ACE User Manual

DB35.3 Series PATA

ST3750840ACE
ST3500830ACE
ST3400820ACE
ST3320820ACE
ST3300820ACE
ST3250820ACE

DB35.3 Series PATA

ST3750840ACE
ST3500830ACE
ST3400820ACE
ST3320820ACE
ST3300820ACE
ST3250820ACE

© 2006, Seagate Technology LLC All rights reserved

Publication number: 100427568, Rev. C

August 2006

Seagate and Seagate Technology are registered trademarks of Seagate Technology LLC.
SeaTools, SeaFONE, SeaBOARD , SeaTDD, and the Wave logo are either regist ered trade­marks or trademarks of Seagate Technology LLC. Other product names are registered trade­marks or 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 of Seagate

Technology LLC.

Contents

1.0 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2.0 Drive specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.1 Specification summary table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.2 Formatted capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.2.1 LBA mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.3 Default logical geometry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.4 Recording and interface technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.5 Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.6 Seek time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.7 Start/stop times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.8 Power specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.8.1 Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.8.2 Conducted noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.8.3 Voltage tolerance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.8.4 Power-management modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.9 Environmental specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.9.1 Ambient temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.9.2 Temperature gradient. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.9.3 Humidity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.9.4 Altitude. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.9.5 Shock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.9.6 Vibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.10 Acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.11 Electromagnetic immunity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.12 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.13 Agency certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.13.1 Safety certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.13.2 Electromagnetic compatibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.13.3 FCC verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.14 Environmental protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

2.14.1 European Union Restriction of Hazardous Substances (RoHS) . . . . . . . . . . . . 19

2.15 Corrosive environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.0 Configuring and mounting the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.1 Handling and static discharge precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.2 Breather filter hole precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.3 Jumper settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.3.1 Master/slave configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.3.2 Cable-select option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.3.3 Ultra ATA/100 cable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

3.4 Drive mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

4.0 ATA interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

4.1 ATA interface signals and connector pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

4.1.1 Supported ATA commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

4.1.2 Identify Device command. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

4.1.3 Set Features command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

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

5.0 Seagate Technology support services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

DB35.3 Series PATA Product Manual, Rev. C iii

iv DB35.3 Series PATA Product Manual, Rev. C

List of Figures

Figure 1. Typical 5V startup and operation current profile. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Figure 2. Typical 12V startup and operation current profile. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Figure 3. Breather filter hole location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Figure 4. Master/slave jumper settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Figure 5. Ultra ATA cable connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Figure 6. Mounting dimensions—top, side and end view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Figure 7. I/O pins and supported ATA signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

DB35.3 Series PATA Product Manual, Rev. C v

vi DB35.3 Series PATA Product Manual, Rev. C

1.0 Introduction

This manual describes the functional, mechanical and interface specifications for the following Seagate

DB35.3 Series PATA model drives:

ST3750840ACE ST3320820ACE

ST3500830ACE ST3300820ACE

ST3400820ACE ST3250820ACE

These drives provide the following key features:

• 7,200-RPM spindle speed.

• High instantaneous (burst) data transfer rates (up to 100 Mbytes per second) using Ultra DMA mode 5.

• Perpendicular recording technology. Tunneling Giant magnetoresistive (TGMR) recording heads and
Enhanced Partial Response-Maximum Likelihood (EPRML) technology, which provide the drives with
increased areal density.

• State-of-the-art cache and on-the-fly error-correction algorithms.

• Full-track multiple-sector transfer capability without local processor intervention.

• Quiet operation.

• SeaTools diagnostic software performs a drive self-test that eliminates unnecessary drive returns.

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

• Support for Read Multiple and Write Multiple commands.

• Support for autodetection of master/slave drives that use cable select (CSEL).

®

DB35.3 Series PATA Product Manual, Rev. C 1

2 DB35.3 Series PATA Product Manual, Rev. C

2.0 Drive specifications

Unless otherwise noted, all specifications are measured under ambient conditions, at 25°C, and nominal
power. For convenience, the phrases the drive and this drive are used throughout this manual to indicate the
following drive models:

ST3750840ACE ST3320820ACE
ST3500830ACE ST3300820ACE
ST3400820ACE ST3250820ACE

2.1 Specification summary table

The specifications listed in the table belo w are fo r quick re ference. For det ails on specification measur ement or
definition, see the appropriate section of this manual.

DB35.3 Series PATA Product Manual, Rev. C 3

Table 1: Drive specifications summary for 750, 500, and 400 Gbyte models

Drive specification ST3750840ACE ST3500830ACE ST3400820ACE

Formatted Gbytes (512 bytes/sector)* 750 500 400
Guaranteed sectors 1,465,149,168 976,773,168 781,422,768
Bytes per sector 512
Default sectors per track 63
Default read/write heads 16
Default cylinders 16,383
Recording density, max 926 kbits/in 813 kbits/in 781 kbits/in
Track density, max 145 ktracks/in
Areal density, max 128.2 Gbits/in
Spindle speed 7,200 RPM
Internal data transfer rate, max 1,030 Mbits/sec
Sustained data transfer rate, max 78 Mbytes/sec 72 Mbytes/sec
I/O data-transfer rate, max 100 Mbytes/sec
ATA data-transfer modes supported PIO modes 0–4

Cache buffer 8 Mbytes
Height, max 26.1 mm (1.028 inches)
Width, max 101.6 mm (4.000 inches) +/- 0.010 inches
Length, max 146.99 mm (5.787 inches)
Weight, typical 720 grams 635 grams
Average latency 4.16 msec
Power-on to ready, max 16 sec
Standby to ready, max 16 sec
Track-to-track seek time, typical <0.8 msec read; <1.0 msec write
Average seek, read, typical <11.0 msec
Average seek, write, typical <12.0 msec
Startup current (max) 12V (peak) 2.0 amps
Voltage tolerance (including noise) 5V ± 5%

Ambient temperature
operating
nonoperating

Temperature gradient, per hour max 20°C (operating)

Relative humidity 5% to 90% (operating)

Relative humidity gradient, per hour max 30%
Wet bulb temperature, max 37.7°C (operating)

Altitude, operating –60.96 m to 3,048 m

Altitude, nonoperating, max –60.96 m to 12,192 m below mean sea level

Operational Shock, max 63 Gs at 2 msec
Non-Operational Shock, max 300 Gs at 2 msec
Vibration, operating 5–22 Hz: 0.25 Gs, Limited displacement

Multiword DMA modes 0–2
Ultra DMA modes 0–5

12V ± 10%

0° to 60°C
–40° to 70°C

30°C (nonoperating)

5% to 95% (nonoperating)

37.7°C (nonoperating)

(–200 ft. to 10,000+ ft.)

(–200 ft. to 40,000+ ft below mean sea level.)

22–350 Hz: 0.50 Gs
350–500 Hz:: 0.25 Gs

2

114.4 Gbits/in

0° to 62°C
–40° to 70°C

2

128.2 Gbits/in

2

4 DB35.3 Series PATA Product Manual, Rev. C

Drive specification ST3750840ACE ST3500830ACE ST3400820ACE

Vibration, nonoperating 5–22 Hz: 0.25 Gs, Limited displacement

Drive acoustics, sound power
Idle** 2.8 bels (typical)

CE seek profile 2.9 (typical)

Nonrecoverable read errors 1 per 10
Annualized Failure Rate (AFR) 0.68%
Warranty 5 years on distribution units.

Contact start-stop cycles (25°C, 50% rel. humidity) 50,000

*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment

and formatting.

**During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may incr ease acoustic and

power to operational levels.

22–350 Hz: 5.0 Gs
350–500 Hz:: 1.0 Gs

3.0 bels (max)

3.0 (max)

14

bits read

To determine the warranty for a specific drive, use a web browser to
access the following web page:
www.seagate.com/support/service/
From this page, click on the “Verify Your Warranty” link. You will be asked
to provide the drive serial number, model number (or part number) and
country of purchase. The system will display the warranty information for
your drive.

2.7 bels (typical)

2.9 bels (max)

2.8 (typical)

2.9 (max)

DB35.3 Series PATA Product Manual, Rev. C 5

Table 2: Drive specifications summary for 320, 300, and 250 Gbyte models

Drive specification ST3320820ACE ST3300820ACE ST3250820ACE

Formatted Gbytes (512 bytes/sector)* 320 300 250
Guaranteed sectors 625,142,448 586,072,368 488,397,168
Bytes per sector 512
Default sectors per track 63
Default read/write heads 16
Default cylinders 16,383
Recording density, max 781 kbits/in 813 kbits/in
Track density, max 145 ktracks/in
Areal density, max 114.4 Gbits/in
Spindle speed 7,200 RPM
Internal data transfer rate, max 1,030 Mbits/sec
Sustained data transfer rate, max 72 Mbytes/sec
I/O data-transfer rate, max 100 Mbytes/sec
ATA data-transfer modes supported PIO modes 0–4

Cache buffer 8 Mbytes
Height, max 26.1 mm (1.028 inches)
Width, max 101.6 mm (4.000 inches) +/- 0.010 inches
Length, max 146.99 mm (5.787 inches)
Weight, typical 580 grams
Average latency 4.16 msec
Power-on to ready, max 16 sec
Standby to ready, max 16 sec
Track-to-track seek time, typical <0.8 msec (read), <1.0 msec (write)
Average seek, read, typical <11.0 msec
Average seek, write, typical <12.0 msec
Startup current (typical) 12V (peak) 2.0 amps
Voltage tolerance (including noise) 5V ± 5%

Ambient temperature
operating
nonoperating

Temperature gradient, max 20°C per hour (operating)

Relative humidity 5% to 90% (operating)

Relative humidity gradient, per hour max 30%
Wet bulb temperature, max 37.7°C (operating)

Altitude, operating –60.96 m to 3,048 m

Altitude, nonoperating, max –60.96 m to 12,192 m below mean sea level

Operational Shock, max 63 Gs at 2 msec
Non-Operational Shock, max 300 Gs at 2 msec
Vibration, operating 5–22 Hz: 0.25 Gs, Limited displacement

Multiword DMA modes 0–2
Ultra DMA modes 0–5

12V ± 10%

0° to 65°C
–40° to 70°C

30°C per hour (nonoperating)

5% to 95% (nonoperating)

37.7°C (nonoperating)

(–200 ft. to 10,000+ ft.)

(–200 ft. to 40,000+ ft. below mean sea level

22–350 Hz: 0.50 Gs
350–500 Hz:: 0.25 Gs

2

6 DB35.3 Series PATA Product Manual, Rev. C

Drive specification ST3320820ACE ST3300820ACE ST3250820ACE

Vibration, nonoperating 5–22 Hz: 0.25 Gs, Limited displacement

Drive acoustics, sound power
Idle** 2.7 bels (typical)

CE seek profile 2.8 bels (typical)

Nonrecoverable read errors 1 per 10
Annualized Failure Rate (AFR)*** 0.68%
Warranty 5 years on distribution units.

Contact start-stop cycles (25°C, 50% rel. humidity) 50,000

*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment

and formatting.

**During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may incr ease acoustic and

power to operational levels.

22–350 Hz: 5.0 Gs
350–500 Hz:: 1.0 Gs

2.9 bels (max)

2.9 bels (max)

14

bits read

T o determine the warranty for a specific drive, use a web browser to access the
following web page:
www.seagate.com/support/service/
From this page, click on the “Verify Your Warranty” link. You will be asked to
provide the drive serial number, model number (or part number) and country of
purchase. The system will display the warranty information for your drive.

2.5 bels (typical)

2.7 bels (max)

2.7 bels (typical)

2.8 bels (max)

DB35.3 Series PATA Product Manual, Rev. C 7

2.2 Formatted capacity

Formatted

Model

ST3750840ACE 750 Gbytes 1,465,149,168 512
ST3500830ACE 500 Gbytes 976,773,168 512
ST3400820ACE 400 Gbytes 781,422,768 512
ST3320820ACE 320 Gbytes 625,142,448 512
ST3300820ACE 300 Gbytes 586,072,368 512
ST3250820ACE 250 Gbytes 488,397,168 512

*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environ­ment and formatting.

capacity*

Guaranteed
sectors Bytes per sector

2.2.1 LBA mode

When addressing these drives in LBA mode, all blocks (sectors) are consecutively numbered from 0 to n–1,
where n is the number of guaranteed sectors as defined above.

See Section 4.1.2, "Identify Device command" (words 60-61 and 100-103) for additional information about 48­bit addressing support of drives with capacities over 137 Gbytes.

2.3 Default logical geometry

Cylinders Read/write heads Sectors per track

16,383 16 63

8 DB35.3 Series PATA Product Manual, Rev. C

2.4 Recording and interface technology

750GB 500GB 400GB 320GB 300GB 250GB

Interface ATA
Recording method Perpendicular
Recording density, KBPI (kbits/inch max) 926 813 781 813
Track density, KTPI (ktracks/inch avg) 145

2

Areal density (Gbits/inch
Spindle speed (RPM) (± 0.2%) 7,200
Internal data transfer rate (Mbits/sec max) 1,030
Sustained data transfer rate (Mbytes/sec max) 78 72
I/O data-transfer rate (Mbytes/sec max) 100 (Ultra DMA mode 5)

avg) 128.2 114.4

2.5 Physical characteristics

Drive specification

Maximum height

(mm)
(inches)

Maximum width

(mm)
(inches)

Maximum length

(mm)
(inches)

26.1

1.028

101.6

4.000 +/- 0.010

146.99

5.787

Typical weight
ST3320820ACE, ST3300820ACE and ST3250820ACE

ST3500830ACE and ST3400820ACE
ST3750840ACE

Cache Size 8 Mbytes

580 grams (1.28 lbs)
635 grams (1.40 lbs)
720 grams (1.59 lbs)

DB35.3 Series PATA Product Manual, Rev. C 9

2.6 Seek time

Seek measurements are taken with nominal power at 25°C ambient temperature. All times are measured using
drive diagnostics. 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 s tatistical random average of at le ast 5,000 measurements of se eks between
random tracks, less overhead.

Typical seek times (msec) Read Write

Track-to-track <0.8 <1.0
Average <11.0 <12.0
Average latency 4.16 4.16

Note. These drives are designed to consistently meet the seek times represented in this manual. Physical seeks,

regardless of mode (such as track-to-track and average), are expected to meet or exceed the noted values.
However, due to the manner in which these drives are formatted, benchmark tests that include command
overhead or measure logical seeks may produce results that vary from these specifications.

2.7 Start/stop times

Power-on to Ready (sec) 16 (max)
Standby to Ready (sec) 16 (max)
Ready to spindle stop (sec) 10 (max)

2.8 Power specifications

The drive receives DC power (+5V or +12V) through a four-pin standard drive power connector.

2.8.1 Power consumption

Power requirements for the drives are listed in the table on page 11. Typical power measurements are based
on an average of drives tested, under nominal conditions, using +5.0V and +12.0V input volt age at 25° C a mbi­ent temperature.

• Spinup power

Spinup power is measured from the time of power-on to the time that the drive spindle reaches operating speed.

• Seek mode

During seek mode, the read/write actuator arm moves towar d a specific position on the disc surface and do es
not execute a read or write operation. Servo electronics are active. Seek mode power represents the worst­case power consumption, using only random seeks with read or write latency time. This mode is not typical
and is provided for worst-case information.

• Read/write power and current

Read/write power is measured with the heads on track, based on a 16-sector write followed by a 32-msec
delay, then a 16-sector read followed by a 32-msec de la y.

• Operating power and current

Operating power is measured u sing 4 0 pe rcen t ran dom see ks, 40 per cent r ead/wr ite mode (1 writ e f or each
10 reads) and 20 percent drive idle mode.

• Idle mode power

10 DB35.3 Series PATA Product Manual, Rev. C

Idle mode power is measured with the drive up to speed, with servo electronics active and with the heads in
a random track location.

• Standby mode

During Standby mode, the drive accepts commands, but the drive is not spinning, and the servo and read/
write electronics are in power-down mode.

Table 3: DC power requirements

Power dissipation using consumer
storage profile (ST3750840ACE values
shown)

Spinup — — 2.0 (peak)
Idle* 9.30 0.611 0.540
Idle with offline activity 10.40 0.719 0.567
Operating (CE seeks) 8.20 0.425 0.510
Standby 0.80 0.106 0.023
Sleep 0.80 0.106 0.023

*During periods of drive idle, some offline activity may occur according to the S.M.A.R. T. specification, which may increase acoustic and

power to operational levels.

Average
(watts, 25° C)

Average
5V typ amps

Average
12V typ amps

DB35.3 Series PATA Product Manual, Rev. C 11

2.8.1.1 Typical current profile

Figure 1 Typical 5V startup and operation current profile

Figure 2 Typical 12V startup and operatio n current profile

2.8.2 Conducted noise

Input noise ripple is measured at the host system powe r supply across an equivalent 80-ohm resistive load on
the +12 volt line or an equivalent 15-ohm resistive load on the +5 volt line.

• Using 12-volt power, the drive is expected to operate with a maximum of 120 mV peak-to-peak square-wave
injected noise at up to 10 MHz.

• Using 5-volt power, the drive is expected to operate with a maximum of 100 mV peak-to-peak square-wave
injected noise at up to 10 MHz.

Note. Equivalent resistance is calculated by dividing the nominal voltage by the typical RMS read/write

current.

12 DB35.3 Series PATA Product Manual, Rev. C

2.8.3 Voltage tolerance

Voltage tolerance (including noise):

5V ± 5%
12V ± 10%

2.8.4 Power-management modes

The drive provides programmable power management to provide greater energy efficiency. In most systems,
you can control power management through the system setup program. The drive features the following
power-management modes:

Power mode Heads Spindle Buffer

Active Tracking Rotating Enabled
Idle Tracking Rotating Enabled
Standby Parked Stopped Enabled
Sleep Parked Stopped Disabled

• Active mode

The drive is in Active mode during the read/write and seek operations.

• Idle mode

The buffer remains enabled, and the drive accepts all commands and returns to Active mode any time disc
access is necessary.

• Standby mode

The drive enters Standby mode when the host sends a Standby Immediate command. If the host has set the
standby timer, the drive can also enter Standby mode automatically after the drive has been inactive for a
specifiable length of time. The standby timer delay is established using a Standby or Idle command. In Standby
mode, the drive buffer is enabled, the heads are parked and the spindle is at rest. The drive accepts all
commands and returns to Active mode any time disc access is necessary.

•Sleep mode

The drive enters Sleep mode after receiving a Slee p comma nd from the h ost. In Sleep mode, the drive buffer
is disabled, the heads are parked and the spindle is at rest. The drive leaves Sleep mode after it receives a
Hard Reset or Soft Reset from the host. After receiving a reset, the drive exits Sleep mode and enters Standby
mode with all current translation parameters intact.

• Idle and Standby timers

Each time the drive performs an Active function (read, write or seek), the standby timer is reinitialized and
begins counting down from its specified delay times to zero. If the standby timer reaches zero before any drive
activity is required, the drive makes a transition to Standby mode. In both Idle and Standby mode, the drive
accepts all commands and returns to Active mode when disc access is necessary.

DB35.3 Series PATA Product Manual, Rev. C 13

2.9 Environmental specifications

2.9.1 Ambient temperature

Ambient temperature is defined as the temperature of the environment immediately surrounding the drive.
Actual drive case temperature should not exceed
ommended measurement locations are shown in Figure 6 on page 25.

Above 1,000 feet (305 meters), the maximum temperature is derated linearly to 112°F (44°C) at 10,000 feet
(3,048 meters).

Operating
ST3320820ACE, ST3300820ACE and ST3250820ACE
ST3500830ACE and ST3400820ACE
ST3750840ACE

Nonoperating –40° to 70°C (–40° to 158°F)

2.9.2 Temperature gradient

Operating 20°C per hour (68°F per hour max), without condensation
Nonoperating 30°C per hour (86°F per hour max)

2.9.3 Humidity

75°C (167 °F) within the opera ting ambient conditio ns. Rec-

0° to 65°C (32° to 149°F)
0° to 62°C (32° to 143.6°F)
0° to 60°C (32° to 140°F)

2.9.3.1 Relative humidity

Operating 5% to 90% noncondensing (30% per hour max)
Nonoperating 5% to 95% noncondensing (30% per hour max)

2.9.3.2 Wet bulb temperature

Operating 37.7°C (99.9°F max)
Nonoperating 37.7°C (99.9°F max)

2.9.4 Altitude

Operating –60.96 m to 3,048 m (–200 ft. to 10,000+ ft.)
Nonoperating –60.96 m to 12,192 m (–200 ft. to 40,000+ ft.)

14 DB35.3 Series PATA Product Manual, Rev. C

2.9.5 Shock

All shock specifications assume that the drive is mounted securely with the input shock applied at the drive
mounting screws. Shock may be applied in the X, Y or Z axis.

2.9.5.1 Operating shock

These drives comply with the performance levels specified in this document when subjected to a maximum
operating shock of 63 Gs based on half-sine shock pulses of 2 msec. Shocks should not be repeated more
than two times per second.

2.9.5.2 Nonoperating shock 2 Disc models

The nonoperating shock level that the drive can experience without incurring physical damage or degradation
in performance when subsequently put into operation is 35 0 Gs based on a nonrepe titive half-sine shock pu lse
of 2 msec duration.

3 and 4 Disc models

The nonoperating shock level that the drive can experience without incurring physical damage or degradation
in performance when subsequently put into operation is 30 0 Gs based on a nonrepe titive half-sine shock pu lse
of 2 msec duration.

2.9.6 Vibration

All vibration specifications assume that the drive is mounted securely with the input vibration applied at the
drive mounting screws. Vibration may be applied in the X, Y or Z axis.

2.9.6.1 Operating vibration

The following table lists the maximum vibration levels that the drive may experience while meeting the perfor­mance standards specified in this document.

5–22 Hz 0.25 Gs (Limited displacement)
22–350 Hz 0.50 Gs
350–500 Hz 0.25 Gs

2.9.6.2 Nonoperating vibration

The following table lists the maximum nonoperating vibration that the drive may experience without incurring
physical damage or degradation in performance when subsequently put into operation.

5–22 Hz 0.25 Gs (limited displacement)
22–350 Hz 5.0 Gs
350–500 Hz 1.0 Gs

DB35.3 Series PATA Product Manual, Rev. C 15

2.10 Acoustics

Drive acoustics are measured as ov erall A-weighted acoustic sound power levels (no pure tones). All mea­surements are consistent with ISO document 7779. Sound power measurements are taken under essentially
free-field conditions over a reflecting plane. For all tests, the drive is oriented with the cover facing upward.

Note. For seek mode tests, the drive is placed in seek mode only. The number of seeks per second is defined

by the following equation:

(Number of seeks per second = 0.4 / (average latency + average access time)

Table 4: Fluid Dynamic Bearing (FDB) motor acoustics

Idle* CE seek profile

ST3750840ACE 2.8 bels (typ)

3.0 bels (max)

ST3500830ACE 2.8 bels (typ)

3.0 bels (max)

ST3400820ACE 2.7 bels (typ)

2.9 bels (max)

ST3320820ACE 2.7 bels (typ)

2.9 bels (max)

ST3300820ACE 2.5 bels (typ)

2.7 bels (max)

ST3250820ACE 2.5 bels (typ)

2.7 bels (max)

*During periods of drive idle, some offline activity may occur according to the S.M.A.R. T. specification, which may increase acoustic and

power to operational levels.

2.9 bels (typ)

3.0 bels (max)

2.9 bels (typ)

3.0 bels (max)

2.8 bels (typ)

2.9 bels (max)

2.8 bels (typ)

2.9 bels (max)

2.7 bels (typ)

2.8 bels (max)

2.7 bels (typ)

2.8 bels (max)

16 DB35.3 Series PATA Product Manual, Rev. C

2.11 Electromagnetic immunity

When properly installed in a representative host system, the drive operates without errors or degradation in
performance when subjected to the radio frequency (RF) environments defined in the following table:

Table 5: Radio frequency environments

Performance

Test Description

Electrostatic discharge Contact, HCP, VCP: ± 4

± 8 kV

Radiated RF immunity 80 to 1,000 MHz, 3 V/m,

80% AM with 1 kHz sine
900 MHz, 3 V/m, 50% pulse
modulation @ 200 Hz

Electrical fast transient ± 1 kV on AC mains, ± 0.5 kV on

external I/O

Surge immunity ± 1 kV differential, ± 2 kV com-

mon, AC mains

Conducted RF immunity 150 kHz to 80 MHz, 3 Vrms,

80% AM with 1 kHz sine

Voltage dips, interrupts 0% open, 5 seconds

0% short, 5 seconds
40%, 0.10 seconds
70%, 0.01 seconds

kV; Air:

level

B EN 61000-4-2: 95

A EN 61000-4-3: 96

B EN 61000-4-4: 95

B EN 61000-4-5: 95

A EN 61000-4-6: 97

C
C
C
B

2.12 Reliability

Nonrecoverable read errors 1 per 10
Annualized Failure Rate (AFR) 0.68% (nominal power, 25°C ambient temperature)
Contact start-stop cycles 50,000 cycles

(at nominal voltage and temperature, with 60 cycles per hour and a 50% duty cycle)

Warranty 5 years on distribution units.

To determine the warranty for a specific drive, use a web browser to access the fol­lowing web page:

www.seagate.com/support/service/
From this page, click on the “Verify Your Warranty” link. You will be asked to provide

the drive serial number, model number (or part number) and country of purchase.
The system will display the warranty information for your drive.

Preventive maintenance None required.

14

bits read, max.

Reference
standard

ENV 50204: 95

EN 61000-4-11: 94

2.13 Agency certification

2.13.1 Safety certification

The drives are recognized in accordance with UL 1950 and CSA C22.2 (950) and meet all applicable sections
of IEC950 and EN 60950 as tested by TUV North America.

DB35.3 Series PATA Product Manual, Rev. C 17

2.13.2 Electromagnetic compatibility

Hard drives that display the CE mark comply with the European Union (EU) requirements specified in the Elec­tromagnetic Compatibility Directive (89/336/EEC). Testing is performed to the levels specified by the product
standards for Information Technology Equipment (ITE). Emission levels are defined by EN 55022, Class B and
the immunity levels are defined by EN 55024.

Seagate uses an independent laboratory to confirm compliance with the EC directives specified in the previous
paragraph. Drives are tested in representative end-user systems. Although CE-marked Seagate drives comply
with the directives when used in the test systems, we cannot guarantee that all systems will comply with the
directives. The drive is designed for operation inside a properly designed enclosure, with properly shielded I/O
cable (if necessary) and terminators on all unused I/O ports. Computer manufacturers and system integrators
should confirm EMC compliance and provide CE marking for their products.

Korean RRL

If these drives have the Korea Ministry of Information and Communication (MIC) logo, they comply with para­graph 1 of Article 11 of the Electromagnetic Compatibility control Regulation and meet the Electromagnetic
Compatibility (EMC) Framework requirements of the Radio Research Laboratory (RRL) Ministry of Information
and Communication Republic of Korea.

These drives have been tested and comply with the Electromagnetic Interferen ce/Ele ctromagn etic Susceptibil­ity (EMI/EMS) for Class B products. Drives are tested in a representative, end-user system by a Korean-recog­nized lab.

• EUT name (model numbers): DB35 Series

• Certificate number: STX-L3510 (B)

• Trade name or applicant: Seagate Technology

• Manufacturing date: March 2006

• Manufacturer/nationality: Singap or e and Ch ina

Australian C-Tick (N176)

If these models have the C-Tick marking, they comply with the Australia/New Zealand Standard AS/NZS3548
1995 and meet the Electromagnetic Compatibility (EMC) Framework req uireme nts of the Australian Communi­cation Authority (ACA).

2.13.3 FCC verification

These drives are intended to be contained solely with in a pe rsonal com puter or simila r enclosur e ( not attached
as an external device). As such, each drive is considered to be a subassembly even when it is individually mar­keted to the customer. As a subassembly, no Federal Communications Commission verification or certification
of the device is required.

Seagate Technology LLC has tested this device in enclosures as described above to ensure that the total
assembly (enclosure, disc drive, motherboard, power supply, etc.) does comply with the limits for a Class B
computing device, pursuant to Subpart J, Part 15 of the FCC rules. Operation with noncertified assemblies is
likely to result in interference to radio and television reception.

Radio and television interference. This equipment generates and uses radio frequency energy and if not
installed and used in strict accordance w ith the manufacturer ’s instructions, may cause interference to radio
and television reception.

This equipment is designed to provide reasonable protection against such interference in a residential installa­tion. However, there is no guarantee that interference will not occur in a particular installation. If this equipment
does cause interference to radio o r 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.

18 DB35.3 Series PATA Product Manual, Rev. C

• Move the device to one side or the other of the radio or TV.

• Move the device farther away from the radio or TV.

• Plug the computer into a different outlet so that the receiver and computer are on different branch outlets.
If necessary, you should consult your dealer or an experienced radio/television technician for additional sug-

gestions. You ma y find helpful the following booklet prepared by the Federal Communications Commission:
How to Identify and Resolve Radio-Television Interference Problems. This booklet is available from the Super­intendent of Documents, U.S. Government Printing Office, Washingt on, DC 20402. Refer to publication num­ber 004-000-00345-4.

2.14 Environmental protection

Seagate designs its products to meet environme ntal protection requirements worldwide, including regulations
restricting certain chemical substances.

2.14.1 European Union Restriction of Hazardous Substances (RoHS)

The European Union Restriction of Hazardous Substances (RoHS) Directive restricts the presence of chemical
substances, including Lead (Pb), in electronic products effective July 2006. Although amendments to the
Euro-pean Union’s Restriction of Hazard ou s Sub stances (RoHS) Directive have not been fina lize d , t o t he b e st
of our knowledge the disc drives documented in this publication will comply with the final RoHS Directive
require-ments.

A number of parts and materials in Seagat e products are procured from external suppliers. We rely on the
rep-resentations of our suppliers rega rding the pr esence of RoHS substa nces in these parts and materials. Our
supplier contracts require compliance with our che mical substance restrictions, and our suppliers document
their compliance with our requirements by providing material conten t declarations for all p arts and materials for
the disc drives documented in this publication. Current supplier declarations include disclosure of the inclusion
of any RoHS-regulated substance in such parts or materials.

Seagate also has internal systems in place to ensure ongoin g compliance with the RoHS Dire ctive and all laws
and regulations which restrict chemical content in electronic products. These systems include standard
operat-ing procedures that ensure that restricted substances are not utilized in our manufacturing operations,
labora-tory analytical validation testing, and an internal auditing process to ensure that all standard operating
procedures are complied with.

2.15 Corrosive environment

Seagate electronic drive components pass accelerated corrosion testing equivalent to 10 years exposure to
light industrial environments containing sulfurous gases, chlorine and nitric oxide, classes G and H per ASTM
B845. However, this accelerated testing cannot duplicate every potential application environment. Users
should use caution exposing any electronic components to uncontrolled chemical pollutants and corrosive
chemicals as electronic drive component reliability can be affected by the installation environment. The silver,
copper, nickel and gold films used in Seagate product s are especially sensitive to the presence of sulfide, chlo­ride, and nitrate contaminants. Sulfur is found to be the most damaging. In addition, electronic components
should never be exposed to condensing water on the surface of the printed circuit board assembly (PCBA) or
exposed to an ambient relative humidity greater than 95%. Materials used in cabinet fabrication, such as vulca­nized rubber, that can outgas corrosive compounds should be minimized or eliminated. The useful life of any
electronic equipment may be extended by replacing materials near circuitry with sulfide-free alternatives.

DB35.3 Series PATA Product Manual, Rev. C 19

20 DB35.3 Series PATA Product Manual, Rev. C

3.0 Configuring and mounting the drive

This section contains the specifications and instructions for configuring and mounting the drive.

3.1 Handling and static discharge precautions

After unpacking, and before installation, the drive may be exposed to potential handling and electrostatic dis­charge (ESD) hazards. Observe the following standard handling and static-discharge precautions:

Caution:

• Before handling the drive, put on a grounded wrist strap, or ground yo urse lf fr eq uently by tou ch ing the metal
chassis of a computer that is plugged into a grounded outlet. Wear a grounded wrist strap throughout the
entire installation procedure.

• Handle the drive by its edges or frame only.

• The drive is extremely fragile—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 remove the factory-installed labe ls from the dr ive or cover them with additional labels. Removal voids
the warranty. Some factory-installed labels contain information needed to serv ice the drive. Other labels are
used to seal out dirt and contamination.

DB35.3 Series PATA Product Manual, Rev. C 21

3.2 Breather filter hole precautions

This section contains information regarding the precautions which should be taken regarding the breather filter
hole in Seagate hard disc drives. Proper precautions should be taken to ensure full functionality and prevent
possible damage to the drive.

Breather hole

Do not cover or seal
this hole.

Figure 3 Breather filter hol e lo ca tion

Caution: Do not cover, seal, or insert any object into this hole.

This hole has two purposes:

• To allow condensation inside the hard disc to escape

• To allow air pressure inside the hard disc to equalize with ambient pressure
Note. If this hole is covered, sealed, or penetrated by any object, the drive reliability may be compromised

and could lead to permanent damage. Covering or sealing this hole voids the warranty.

22 DB35.3 Series PATA Product Manual, Rev. C

3.3 Jumper settings

Options jumper block

3.3.1 Master/slave configuration

The options jumper block shown in Figure 4 is used to configure the drive for operation. It is the 8-pin dual
header between the interface connector and the power connector. Use the following settings to configure the
drive as a master or a slave.

Master or single drive. The drive is configured at the factory for a master or single-drive operation with a
jumper set on pins 7 and 8.

Drive as slave. Remove all jumpers.
Drive as master with a non-ATA-compatible slave.

Use this jumper setting only if the drive does not work as a master with no jumpers installed.

*Master or single drive

Drive is slave
Master with non ATA-

compatible slave
*Cable select

1753

684

2

Figure 4 Master/slave jumper settings

3.3.2 Cable-select option

Computers that use cable select determine the master and slave drives by selecting or deselecting pin 28,
CSEL, on the interface bus. Master and slave drives are determined by their physical position on the cable. To
enable cable select, set a jumper on pins 5 and 6 as shown in Figure 4. Refer to your computer manual to
determine whether your computer supports this option.

DB35.3 Series PATA Product Manual, Rev. C 23

3.3.3 Ultra ATA/100 cable

An 80-conductor 40-pin cable is required to run Ultra DMA mode 3, mode 4, and mode 5. This cable uses
even-numbered conductors conn e cte d to the gr ou n d pin s to imp r ove sign al integrity.

Note.

If you are using a 40-pin, 80-conductor

cable, attach the blue connector to the
motherboard, the black connector to the
master drive, and the gray connector
to the slave.

Master

Slave

Figure 5 Ultra ATA cable connectors

Pin 1

Computer

Motherboard

Note. The drive supports both host and drive cable dete ction. The host d etect s the 80-cond uctor cabl e by

sampling pin 34, CBLID–, on the interface bus. The drive detects the 80-conductor cable by sens­ing a capacitor at the host side through the CBLID– signal. The result is reported in a Fast Rise
Detected bit (bit 13 of word 93 in the Identify drive parameter block).

3.4 Drive mounting

You can mount the drive in any orientation using four screws in the side-mounting holes or four screws in the
bottom-mounting holes. See Figure 6 for drive mounting dimensions. Follow these important mounting precau­tions when mounting the drive:

• Allow a minimum clearance of 0.030 inches (0.76 mm) around the entire perimeter of the drive for cooling.

• Use only 6-32 UNC mounting screws.

• Do not overtighten the mounting screws (maximum torque: 6 inch-lb.).

• Do not use a drive interface cable that is more than 18 inches long.

24 DB35.3 Series PATA Product Manual, Rev. C

Notes:

1. Dimensions are shown in inches (mm).

R
c
m

er

2 Dimensions per SFF-8301 specification.

ecommended

ase temperature

easurement location

1.028 max
(26.11)

3 x 0.25 0.010
(6.35 0.037)
both sides

1.122 0.02

(28.5 0.51)

1.638 0.01

(41.61 0.25)

3 x 6-32 UNC-2B

0.150 (3.81) max. fastener
penetration both sides. 3 threads
minimum engagement.

2

5.787 max
(146.99)

4.0 0.01

(101.60 0.25)

0.228

(5.79)

2.23

(56.56)

2.83

(71.80)

3.71

(94.35)

0.1240 0.01
(3.18 0.25)

3.750 0.01

(95.25 0.25)

4.0 0.01

(101.60 0.25)

0.178
(4.27)

1.625 0.020

(41.28 0.51)

1.75 0.01

(44.45 0.25)

4 x 6-32 UNC-2B

0.150 (3.81) max. fasten
penetration. 3 threads
minimum engagement.

Recommended
case temperature
measurement location

Figure 6 Mounting dimensions—top, sid e an d en d view

DB35.3 Series PATA Product Manual, Rev. C 25

26 DB35.3 Series PATA Product Manual, Rev. C

4.0 ATA interface

.

These drives use the industry-standard ATA task file interface that supports 16-bit data transfers. It supports
ATA programmed input/output (PIO) modes 0–4; multiword DMA modes 0–2, and Ultra DMA modes 0–5. The
drive also supports the use of the IORDY signal to provide reliable high-speed data transfers.

You can use a daisy-chain cable to connect two drives to a single AT host bus. For detailed information about
the ATA interface, refer to the draft of AT Attachment with Packet Interface Extension (ATA/ATAPI-7), NCITS
T13 1410D, subsequently referred to as the Draft ATA-7 Standard.

4.1 ATA interface signals and connector pins

Figure 7 on page 27 summarizes the signals on the ATA interface connector that the drive supports. For a
detailed description of these signals, refer to the Draft ATA-7 Standard.

Drive pin #

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20
21
22
23

24
25

26
27

28
29
30
31
32
33
34

35
36
37
38
39
40

Pins 28, 34 and 39 are used for master-slave communication (details shown below)

28
34
39

Signal name

–

Reset
Ground

DD7
DD8
DD6
DD9
DD5

DD10

DD4

DD11

DD3

DD12

DD2

DD13

DD1

DD14

DD0

DD15

Ground

(removed)

DMARQ

Ground
DIOW–

STOP
Ground
DIOR

–

HDMARDY

HSTROBE

Ground
IORDY

DDMARDY–

DSTROBE

CSEL

–

DMACK

Ground
INTRQ

–

IOCS16

DA1

–

PDIAG
CBLID–

DA0
DA2

–

CS0

–

CS1

–

DASP
Ground

Drive 0 (master)Drive 1 (slave)

28
34
39

Host pin # and signal description

1

Hardware Reset

2

Ground

3

Host Data Bus Bit 7

4

Host Data Bus Bit 8

5

Host Data Bus Bit 6

6

Host Data Bus Bit 9

7

Host Data Bus Bit 5

8

Host Data Bus Bit 10

9

Host Data Bus Bit 4

10

Host Data Bus Bit 11

11

Host Data Bus Bit 3

12

Host Data Bus Bit 12

13

Host Data Bus Bit 2

14

Host Data Bus Bit 13

15

Host Data Bus Bit 1

16

Host Data Bus Bit 14

17

Host Data Bus Bit 0

18

Device Data (15:0)

19

Ground
(No Pin)

20
21

DMA Request

22

Ground

23

Device I/O Write:
Stop Ultra DMA Burst

24

Ground

25

–

Device I/O Read:
Host Ultra DMA Ready:
Host Ultra DMA Data Strobe

26

Ground

27

I/O Channel Ready
Device Ultra DMA Ready
Device Ulta DMA Data Strobe

28

Cable Select

29

DMA Acknowledge

30

Ground

31

Device Interrupt

32

Reserved

33

Host Address Bus Bit 1

34

Passed Diagnostics
Cable Assembly Type Identifier

35

Device Address (2:0)

36

Device Address (2:0)

37

Chip Select (1:0)

38

Chip Select (1:0)

39

Drive Active/Slave Present

40

Ground

CSEL

–

PDIAG

DASP–

Host

28
34
39

Figure 7 I/O pins and supported ATA signals

DB35.3 Series PATA Product Manual, Rev. C 27

4.1.1 Supported ATA commands

The following table lists ATA-standard commands that the drive supports. For a detailed description of the ATA
commands, refer to the Draft ATA-7 Standard. See “S.M.A.R.T. commands” on page 34 for details and sub-
commands used in the S.M.A.R.T. implementation.

Table 6: Supported ATA commands

Command name Command code (in hex)

Check Power Mode 98

or E5

H

Device Configuration Freeze Lock B1H / C1
Device Configuration Identify B1H / C2
Device Configuration Restore B1H / C0
Device Configuration Set B1H / C3
Device Reset 08
Download Microcode 92
Execute Device Diagnostics 90
Flush Cache E7
Flush Cache Extended EA
Format Track 50
Identify Device EC

H
H
H

H

H

H

H

Idle 97H or E3
Idle Immediate 95H or E1
Initialize Device Parameters 91
Read Buffer E4
Read DMA C8
Read DMA Extended 25
Read DMA Without Retries C9
Read Log Ext 2F
Read Multiple C4
Read Multiple Extended 29
Read Native Max Address F8
Read Native Max Address Extended 27
Read Sectors 20
Read Sectors Extended 24
Read Sectors Without Retries 21
Read Verify Sectors 40
Read Verify Sectors Extended 42
Read Verify Sectors Without Retries 41
Recalibrate 10
Security Disable Password F6
Security Erase Prepare F3

H

H
H

H

H

H

H
H
H
H
H
H
H
H
H
H
H
H
H

H
H
H
H
H

H

H

28 DB35.3 Series PATA Product Manual, Rev. C

Command name Command code (in hex)

Security Erase Unit F4
Security Freeze F5
Security Set Password F1
Security Unlock F2
Seek 70
Set Features EF
Set Max Address F9

H
H
H
H
H

H

H

Note: Individual Set Max Address
commands are identified by the value
placed in the Set Max Features regis­ter as defined to the right.

Set Max Address Extended 37
Set Multiple Mode C6

H

H

Sleep 99H or E6
S.M.A.R.T. Disable Operations B0H / D9
S.M.A.R.T. Enable/Disable Autosave B0H / D2
S.M.A.R.T. Enable Operations B0H / D8
S.M.A.R.T. Execute Offline B0H / D4
S.M.A.R.T. Read Attribute Thresholds B0H / D1
S.M.A.R.T. Read Data B0H / D0
S.M.A.R.T. Read Log Sector B0H / D5
S.M.A.R.T. Return Status B0H / DA
S.M.A.R.T. Save Attribute Valu e s B0H / D3
S.M.A.R.T. Write Log Sector B0H / D6
Standby 96H or E2
Standby Immediate 94H or E0
Write Buffer E8
Write DMA CA
Write DMA Extended 35
Write DMA Without Retries CB
Write Log Extended 3F
Write Multiple C5
Write Multiple Extended 39
Write Sectors 30
Write Sectors Without Retries 31
Write Sectors Extended 34

H

H

H

H

H

H
H
H
H
H

Address:

Password:

Unlock:

Freeze Lock:

H
H
H
H
H
H
H
H

H
H
H

H
H

Lock:

00
01
02
03
04

H
H
H
H
H

DB35.3 Series PATA Product Manual, Rev. C 29

4.1.2 Identify Device command

The Identify Device command (command code EC

) transfers information about the drive to the host following

H

power up. The data is organized as a single 512-byte block of data, whose contents are shown in the Table 6
on page 28. All reserved bits or words should be set to zero. Parameters listed with an “x” are drive-specific or
vary with the state of the drive. See Section 2.0 on page 3 for default parameter settings.

The following commands contain drive-specific features that may not be included in the Draft AT A-7 Stand ard.

Word Description Value

Configuration information:

• Bit 15: 0 = ATA; 1 = ATAPI

0

• Bit 7: removable media

• Bit 6: removable controller

• Bit 0: reserved
1 Number of logical cylinde rs 16,383
2 ATA-reserved 0000
3 Number of logical head s 16
4 Retired 0000
5 Retired 0000
6 Number of logical sectors per logical track: 63 003F
7–9 Retired 0000
10–19 Serial number: (20 ASCII characters, 0000H = none) ASCII

0C5A

H

H

H
H
H
H

20 Retired 0000
21 Retired 0400
22 Obsolete 0000
23–26 Firmware revision (8 ASCII character string, padded with blanks to

x.xx

end of string)

27–46 Drive model number

ST3xxxxxACE

(40 ASCII characters, padded with blanks to end of string)

47 (Bits 7–0) Maximum sectors per interrupt on Read multiple and

8010

Write multiple (16)
48 Reserved 0000
49 Standard Standby timer, IORDY supported and may be disabled 2F00
50 ATA-reserved 0000
51 PIO data-transfer cycle timing mode 0200
52 Retired 0200
53 Words 54–58, 64–70 and 88 are valid 0007
54 Number of current logical cylinders xxxx
55 Number of current logical heads xxxx
56 Number of current logical sectors per logical track xxxx
57–58 Current capacity in sectors xxxx
59 Number of sectors transferred during a Read Multiple or Write Multi-

xxxx

ple command

H
H
H

H

H
H
H
H
H

H
H
H
H
H
H

30 DB35.3 Series PATA Product Manual, Rev. C

Word Description Value

60–61 Total number of user-addressable LBA sectors availab le

0FFFFFFFh*

(see Section 2.2 for related information)
*Note: The maximum value allowed in this field is: 0FFFFFFFh

(268,435,455 sectors, 137 Gbytes). Drives with capacities over 137
Gbytes will have 0FFFFFFFh in this field and the actual number of
user-addressable LBAs specified in words 100-103. This is required

for drives that support the 48-bit addressing feature.
62 Retired 0000
63 Multiword DMA active and modes supported

xx07

(see note following this table)
64 Advanced PIO modes supported (modes 3 and 4 supported) 0003
65 Minimum multiword DMA transfer cycle time per word (120 nsec) 0078
66 Recommended multiword DMA transfer cycle time per word (120

0078

nsec)
67 Minimum PIO cycle time without IORDY flow control (240 nsec) 00F0
68 Minimum PIO cycle time with IORDY flow control (120 nsec) 0078
69–74 ATA-reserved 0000
75 Queue depth 0000
76–79 SATA-specific xxxx
80 Major version number 007E
81 Minor version number 0000
82 Command sets supported 346B
83 Command sets supported 7D01
84 Command sets support extension 4003
85 Command sets enabled 34xx
86 Command sets enabled 3xxx
87 Command sets enable extension 4003
88 Ultra DMA support and current mode

xx3F

(see note following this table)
89 Security erase time 0000
90 Enhanced security erase time 0000
92 Master password revision code FFFE
93 Hardware reset value (see description following this table) xxxx
95–99 ATA-reserved 0000
100–103 Total number of user-addressable LBA sectors available (see Sec-

tion 2.2 for related information). These words are required for drives

that support the 48-bit addressing feature. Maximum value:

0000FFFFFFFFFFFFh.

ST3750840ACE = 1,465,149,168
ST3500830ACE = 976,773,168
ST3400820ACE = 781,422,768
ST3320820ACE = 625,142,448
ST3300820ACE = 586,072,368

ST3250820ACE = 488,397,168
104–127 ATA-reserved 0000
128 Security status 0001
129–159 Seagate-reserved xxxx

H

H

H
H
H

H
H
H
H

H

H

H

H
H

H

H

H

H

H

H
H

H

H

H

H
H

H

DB35.3 Series PATA Product Manual, Rev. C 31

Word Description Value

160–254 ATA-reserved 0000
255 Integrity word xxA5

H
H

Note. Advanced Power Management (APM) and Automatic Acoustic Management (AAM) features are not supported
Note. See the bit descriptions below for words 63, 88, and 93 of the Identify Drive data:

Description (if bit is set to 1)

Bit Word 63

0 Multiword DMA mode 0 is supported.
1 Multiword DMA mode 1 is supported.
2 Multiword DMA mode 2 is supported.
8 Multiword DMA mode 0 is currently active.
9 Multiword DMA mode 1 is currently active.
10 Multiword DMA mode 2 is currently active.

Bit Word 88

0 Ultra DMA mode 0 is supported.
1 Ultra DMA mode 1 is supported.
2 Ultra DMA mode 2 is supported.
3 Ultra DMA mode 3 is supported.
4 Ultra DMA mode 4 is supported.
5 Ultra DMA mode 5 is supported.
8 Ultra DMA mode 0 is currently active.
9 Ultra DMA mode 1 is currently active.
10 Ultra DMA mode 2 is currently active.
11 Ultra DMA mode 3 is currently active.
12 Ultra DMA mode 4 is currently active.
13 Ultra DMA mode 5 is currently active.

Bit Word 93

13 1 = 80-conductor cable detected, CBLID above V

0 = 40-conductor cable detected, CBLID below VIL

IH

32 DB35.3 Series PATA Product Manual, Rev. C

4.1.3 Set Features command

This command controls the implementation of various features th at the drive su pport s. When the d rive receives
this command, it sets BSY, checks the contents of the Features register, clears BSY and generates an inter­rupt. If the value in the register does not represent a feature that the drive supports, the command is aborted.
Power-on default has the read look-ahead and write caching features enabled. The acceptable values for the
Features register are defined as follows:

02
03

55
82
AA
F1

Enable write cache (default).

H

Set transfer mode (based on value in Sector Count register).

H

Sector Count register values:
00
01
08
09
0A
0B
0C
20
21
22
40
41
42
43
44
45
Disable read look-ahead (read cache) feature.

H

Disable write cache.

H

Enable read look-ahead (read cache) feature (default).

H

Report full capacity available

H

Set PIO mode to default (PIO mode 2).

H

Set PIO mode to default and disable IORDY (PIO mode 2).

H

PIO mode 0

H

PIO mode 1

H

PIO mode 2

H

PIO mode 3

H

PIO mode 4 (default)

H

Multiword DMA mode 0

H

Multiword DMA mode 1

H

Multiword DMA mode 2

H

Ultra DMA mode 0

H

Ultra DMA mode 1

H

Ultra DMA mode 2

H

Ultra DMA mode 3

H

Ultra DMA mode 4

H

Ultra DMA mode 5

H

Note. At power-on, or after a hardware or software reset, the default values of the features are as indi-

cated above.

DB35.3 Series PATA Product Manual, Rev. C 33

4.1.4 S.M.A.R.T. commands

S.M.A.R.T. provides near-term failure prediction for disc drives. When S.M.A.R.T. is enabled, the drive moni­tors predetermined drive attributes that are susceptible to degradation over time. If self-monitoring determines
that a failure is likely, S.M.A.R.T. makes a status report available to the host. Not all failures are predictable.
S.M.A.R.T. predictability is limited to the attributes the drive can monitor. For more information on S.M.A.R.T.
commands and implementation, see the Draft ATA-7 Standard.

SeaTools diagnostic software activates a built-in drive self-test (DST S.M.A.R.T. command for D4

) that elimi-

H

nates unnecessary drive returns. The diagnostic software ships with all new drives and is also available at:
http://seatools.sea

gate.com.

This drive is shipped with S.M.A.R.T . featur es disabled . You must have a recent BIOS or sof tware p ackage that
supports S.M.A.R.T. to enable this feature. The table below shows the S.M.A.R.T. command codes that the
drive uses.

Code in features
register S.M.A.R.T. command

D0
D2
D3
D4
D5
D6
D8
D9
DA

H
H
H
H
H
H
H
H

H

S.M.A.R.T. Read Data
S.M.A.R.T. Enable/Disable Attribute Autosave
S.M.A.R.T. Save Attribute Values
S.M.A.R.T. Execute Off-line Immediate (runs DST)
S.M.A.R.T. Read Log Sector
S.M.A.R.T. Write Log Sector
S.M.A.R.T. Enable Operations
S.M.A.R.T. Disable Operations
S.M.A.R.T. Return Status

Note. If an appropriate code is not written to the Features Register, the command is aborted and 0x04

(abort) is written to the Error register.

34 DB35.3 Series PATA Product Manual, Rev. C

5.0 Seagate Technology support services

Online services

Internet

www.seagate.com for information about Seagate products and services. Worldwide support is available 24

hours daily by e-mail for your questions.

Presales Support: www.sea
Technical Support: www.sea

gate.com/support/email/email_presales.html or [e-mail]

gate.com/support/email/email_disc_support.html or [e-mail]

mySeagate

my.seagate.com is the industry’s first Web portal designed specifically for OEMs and distributors. It provides
self-service access to critical applicat ions, personalized conten t and the tools that allow our partners to man­age their Seagate account functions. Submit pricing requests, orders and returns through a single, password­protected Web interface—anytime, anywhere in the world.

spp.seagate.com

spp.seagate.com supports Seagate resellers with product information, program benefits and sales tools. You
may register for customized communications that are not availab le on the web. These commu nications cont ain
product launch, EOL, pricing, promotions and other channel-related information. To learn more about the ben­efits or to register, go to spp.

seagate.com, any time, from anywhere in the world.

Seagate Service Centers

Presales Support

Our Presales Support staff can help you determine which Seagate products are best suited for your specific
application or computer system, as well as product availability and compatibility.

Technical Support

Seagate technical support is available to assist you online at support.seagate.com or through one of our call
centers. Have your system configuration information and your “ST” model number available.

SeaTDD™ ([phone]) is a telecommunications device for the deaf (TDD). You can send questions or
comments 24 hours daily and exchange messages with a technical support specialist during normal business
hours for the call center in your region.

Customer Service Operations

Warranty Service

Seagate offers worldwide customer support for Seag ate drives. Seagate distributors, OEMs and other direct
customers should contact their Seagate Customer Service Operations (CSO) representative for warranty­related issues. Resellers or end users of drive products should contact their place of purchase or one of the
Seagate CSO warranty centers for assistance. Have your drive’s “ST” model number and serial number avail­able.

DB35.3 Series PATA Product Manual, Rev. C 35

Data Recovery Services

Seagate offers data recovery services for all formats and all brands of storage media. Our Data Recovery Ser­vices labs are currently located in North America. To speak with a case management representative, call
1-800-475-0143. Additional information, including an online request form and data loss prevention resources,
is available at www.da tarecovery.sea

gate.com.

Authorized Service Centers

In some locations outside the US, you can contact an Authorized Service Center for service.

USA/Canada/Latin America support services

Seagate Service Centers

Presales Support

Call center Toll-free Direct dial FAX

Americas 1-877-271-3285

1

[phone]

1

[phone]

Technical Support

Call center Toll-free Direct dial FAX

Americas 1-800-SEAGATE

2

[phone]

2

[phone]

Customer Service Operations

Warranty Service

Call center Toll-free Direct dial FAX / E-mail

USA, Canada, Mexico and 1-800-468-3472

Latin America

Brazil

Jabil Industrial Do Brasil — [phone] [phone]

4

LTDA

3

— [phone]

[e-mail]

Data Recovery Services

Call center Toll-free Direct dial FAX

USA, Canada, 1-800- 475-01435 [phone]-475-0158
and Mexico [phone]

1

Hours of operation are 8:00 A.M. to 7:00 P.M., Monday through Friday (Central time).

2

Hours of operation are 8:00 A.M. to 8:00 P.M., Monday through Friday (Central time).

3

Hours of operation are 8:00 A.M. to 5:00 P.M., Monday through Friday (Central time).

4

Authorized Service Center

5

Hours of operation are 8:00 A.M. to 8:00 P.M., Monday through Friday, and 9:00 A.M. to 5:00 P.M., Saturday (Eastern time).

36 DB35.3 Series PATA Product Manual, Rev. C

European support services

For presales and technical support in Europe, dial the Seagate Service Center toll-free number for your spe­cific location. If your location is not listed here, dial our presales and technical support call center at +1-405­324-4714 from 8:00
The presales and technical support call center is located in Oklahoma City, USA.

For European warranty service, dial the toll-free number for your specific location. If your location is not listed
here, dial our European CSO warranty center at [phone] from 8:30
time) Monday through Friday. The CSO warranty center is located in Amsterdam, The Netherlands.

A.M. to 1 1:45 A.M. an d 1:00 P.M. to 5:00 P.M. (Centr al Eu ro pe time) Mon day throu gh Frid ay.

A.M. to 5:00 P.M. (Central Europe

Seagate Service Centers

Toll-free support numbers

Call center Presales and Technical Support Warranty Service

Austria — 00 800-47324289
Belgium 00 800-47324283 (00 800-4SEAGATE) 00 800-47324289
Denmark 00 800-47324283 00 800-47324289
France 00 800-47324283 00 800-47324289
Germany 00 800-47324283 00 800-47324289
Ireland 00 800-47324283 00 800-47324289
Italy 00 800-47324283 00 800-47324289
Netherlands 00 800-47324283 00 800-47324289
Norway 00 800-47324283 00 800-47324289
Poland 00 800-311 12 38 00 800-311 12 38
Spain 00 800-47324283 00 800-47324289
Sweden 00 800-47324283 00 800-47324289
Switzerland 00 800-47324283 00 800-47324289
Turkey 00 800-31 92 91 40 00 800-31 92 91 40
United Kingdom 00 800-47324283 00 800-47324289

FAX services—All Europe (toll call)

Technical Support [phone]
Warranty Service [phone]

Africa/Middle East support services

For presales and technical support in Africa and the Middle East, dial our presales and technical support call
center at [phone] from 8:00
day through Friday. The presales and technical support call center is located in Oklahoma City, USA.

For warranty service in Africa and the Middle East, dial our European CSO warranty center at +31-20-316­7222 from 8:30

3513. The CSO warranty center is located in Amsterdam, The Netherlands.

A.M. to 5:00 P.M. (Central Europe time) Monday through Friday, or send a FAX to +31-20-653-

A.M. to 11:45 A.M. and 1:00 P.M. to 5:00 P.M. (Central Eur ope time) Mon-

DB35.3 Series PATA Product Manual, Rev. C 37

Asia/Pacific support services

For Asia/Pacific presales and technical support, dial the toll-free number for your specific location. The Asia/
Pacific toll-free numbers are available from 6:00
ern time) Monday through Friday, except as noted. If your location is not listed here, direct dial one of our tech­nical support locations.

A.M. to 10:45 A.M. and 12:00 P.M. to 6:00 P.M. (Australian East-

Warranty service is available fr om 9:00
is available from 10:00

A.M. to 7:00 P.M., April through October, and from 11:00 A.M. to 8:00 P.M. November

A.M. to 5:00 P.M., Monday through Friday. Warranty service for Australia

through March (Australian Eastern time) Monday through Friday.

Seagate Service Centers

Call center Toll-free Direct dial FAX

Australia 1800-14-7201 — —
China (Mandarin)
Hong Kong 800-90-0474 — —
Hong Kong (Cantonese)

2, 4

India
Indonesia 001-803-1-003-2165 — —

3, 4

Japan

3, 4

Korea

1, 4

800-810-9668 [phone] —

1, 4

001-800-0830-1730 — —
1-800-180-1104 — —

0034 800 400 554 — —

007 98 8521 7635 — —
Malaysia 1-800-80-2335 — —
New Zealand 0800-443988 — —
Singapore 800-1101-150 — [phone]
Taiwan (Mandarin)

1, 4

00-800-0830-1730 — —
Thailand 001-800-11-0032165 — —

Customer Service Operations

Warranty Service

Call center Toll-free Direct dial FAX

Asia/Pacific — [phone] [phone]
Australia 1800-12-9277 — —

4

India

— [phone] [phone]

1

Hours of operation are 8:30 A.M. to 5:30 P.M., Monday through Friday (Australian Western time).

2

Hours of operation are 9:00 A.M. to 6:00 P.M., Monday through Saturday.

3

Hours of operation are 9:30 A.M. to 6:30 P.M., Monday through Friday.

4

Authorized Service Center

38 DB35.3 Series PATA Product Manual, Rev. C

Index

A

acoustics 16
Active mode
agency certification (regulatory)
altitude
ambient conditions
ambient temperature
areal density
ATA interface
ATA-standard commands
Australian C-Tick
autodetection
average seek time

B

BPI 9
breather filter hole precautions
burst

1

C

cable 24
cable select
cable-select option
cache
case temperature
CE mark
certification
Check Power Mode
commands
compliance
conducted noise
conducted RF immunity
configuring the drive
connector pins
connectors
contact start-stop cycles
Corrosive environment
CSA C22.2 (950)
CSEL
C-Tick
current profile
cycles

13

14

3

10, 14

1, 9

27

28

18

1

10

1

23

1

14

18

17

28

28

18

12

17

21

27

24

17

19

17

23

18

12

17

17

22

Device Configuration Set
Device Reset
diagnostic software
dissipation
Download Microcode
drive diagnostics
drive monitoring
drive self-test
DST

34

28

11

10

1

1, 34

28

1, 34

28

E

electrical fast transient 17
electromagnetic compatibility
Electromagnetic Compatibility Directive
electromagnetic immunity
electrostatic discharge
EMC compliance
EN 60950
enclosures
environmental specifications
EPRML
error-correction algorithms
errors
European Union
Execute Device Diagnostics

17

1, 9

17

18

18

18

18

17

17

14

1

28

F

failure prediction 34
FCC verification
Features register
Flush Cache
Flush Cache Extended
Format Track
formatted capacity
frequency

18

33

28

28

28

8

17

G

guaranteed sectors 8

H

handling 21
heads

1

height

9

humidity

14

18

D

data-transfer rates 1
DC power
density
Device Configuration Freeze Lock
Device Configuration Identify
Device Configuration Restore

DB35.3 Series PATA Product Manual, Rev. C 39

10

9

28

28

28

I

I/O data-transfer rate 9
Identify Device
Identify Device command
Idle

28

Idle and Standby timers
Idle Immediate
Idle mode

28

28

13

30

13

Idle mode power 10
IEC950
Information Technology Equipment
Initialize Device Parameters
interface
interface signals
interference
internal data-transfer rate OD
ISO document 7779

17

28

9, 27

27

18

9

16

J

jumper settings 23

K

Korean RRL 18

L

LBA mode 8
length

9

logical geometry

8

M

maintenance 17
master
master/slave
Master/slave configuration
maximum temperature
measurement locations
modes
monitoring
mounting the drive

23

1

23

14

14

27

1

21, 24

N

noise 12
nominal power
nonoperating shock
nonoperating vibration
nonrecoverable read errors

3

15

15

17

18

power-management modes
Power-on to Ready
precautions
preventive maintenance
programmable power management

24

10

13

17

R

radiated RF immunity 17
radio and television interference
radio frequency
random track location
Read Buffer
Read DMA
Read DMA Extended
Read DMA without Retries
read errors
Read Log Ext
Read Multiple
Read Multiple Extended
Read Native Max Address
Read Native Max Address Extended
Read Sectors
Read Sectors Extended
Read Sectors Without Retries
Read Verify Sectors
Read Verify Sectors Extended
Read Verify Sectors Without Retries
read/write power and current
Recalibrate
recording and interface technology
recording density
recording heads
recording method
register
relative humidity
reliability
resistance
resistive load
RF
RoHS

33

17

19

17

11

28

28

28

17

28
1, 28

28

28

28

28

28

9

1

9

14

17

12

12

18

28

28

28

28

10

13

28

28

9

O

operating power and current 10
operating shock
operating vibration
orientation

15

15

24

P

physical characteristics 9
pins

27

PIO

27

power consumption
power management
power specifications

40 DB35.3 Series PATA Product Manual, Rev. C

10

13

10

S

S.M.A.R.T. commands 34
S.M.A.R.T. Disable Operations
S.M.A.R.T. drive monitoring
S.M.A.R.T. Enable/Disable Autosave
S.M.A.R.T. Enagle Operations
S.M.A.R.T. Execute Offline
S.M.A.R.T. Read Attribute Thresholds
S.M.A.R.T. Read Data
S.M.A.R.T. Read Log Sector
S.M.A.R.T. Return Status
S.M.A.R.T. Save Attribute Values
S.M.A.R.T. Write Log sector

29

29

1

29

29

29

29

29

29

29

29

safety certification 17
screws
SeaTools
sectors
Security Disable Password
Security Erase Prepare
Security Erase Unit
Security Freeze
Security Set Password
Security Unlock
Seek
seek mode
seek time
servo electronics
Set Features
Set Features command
Set Max Address
Set Max Address Extended
Set Multiple Mode
shock
signals
single-track seeks
slave
Sleep
Sleep mode
sound
specifications
spindle speed
Spinup
spinup power
Standby
Standby Immediate
Standby mode
Standby to Ready
start/stop times
start-stop cycles
static-discharge precautions
stop times
subassembly
support services
surge immunity

24

1, 34

8

28

29

29

29

29

29

10

10

11

29

33

29

29

15

27

10

23

11, 29

13

16

3

9

11

10

11, 29

29

11, 13

10

10

17

10

18

35

17

28

29

21

Ultra ATA/100
Ultra DMA

24

24

V

vibration 15
voltage
voltage dips, interrupts
voltage tolerance

13

17

13

W

weight 9
wet bulb temperature
width

9

Write Buffer
Write DMA
Write DMA Extended
Write DMA Without Retries
Write Log Extended
Write Multiple
Write Multiple Extended
Write Sectors
Write Sectors Extended
Write Sectors Without Retries

29

29

1, 29

29

14

29

29

29

29
29

29

T

technical support services 35
temperature
temperature gradient
TGMR
timers
track density
track-to-track seek time
TUV North America

14

14

1

13

9

10

17

U

UL 1950 17

DB35.3 Series PATA Product Manual, Rev. C 41

42 DB35.3 Series PATA Product Manual, Rev. C

Seagate Technology LLC

920 Disc Drive, Scotts Valley, California 95066-4544, USA

Publication Number: 100427568, Rev. C, Printed in U.S.A.