Seagate ST3250820SCE, ST3300820SCE, ST3320820SCE, ST3400820SCE, ST3500830SCE User Manual

Product Manual

DB35.3 Series Serial ATA

ST3750640SCE
ST3750840SCE
ST3500830SCE
ST3400820SCE
ST3320820SCE
ST3300820SCE
ST3250820SCE

100427570
Rev . D
August 2007

Revision histor y

Revision Date Sheets affected or comments

Rev. A 08/04/06 Initial draft.
Rev. B 08/17/06 4-11 and 21.
Rev. C 07/18/07 ft cover, 1, 3, 4, 6, 8, 10 and 23.
Rev. D 08/2307 1, 39 and 40.

Copyright © 2006-2007 Seagate Technology LLC. All rights reserved. Printed in USA
Publication number: 100427570, Rev. D August 2007
Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC

in the United States and/or other countries. DB35.3 Series, SeaTools and SeaTDD are either trademarks
or registered trademarks of Sea gate Technology LLC or one of its affiliated comp anie s in the United States
and/or other countries. All other trademarks or registered trademarks are the property of their respective
owners.

One gigabyte, or GB, equals one billion bytes when referring to hard drive capacity. Accessible capacity
may vary depending on oper ating envi ronme nt and for matting. Seagate reserves the right to chan ge, wi th­out notice, product offerings or specifications.

DB35.3 Series Serial ATA Product Manual, Rev. D

i

Contents

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

1.1 About the Serial ATA interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

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

2.1 Specification summary tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.2 Formatted capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.2.1 LBA mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.3 Default logical geometry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.4 Recording and interface technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.5 Physical characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.6 Seek time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.7 Start/stop times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.8 Power specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.8.1 Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.8.2 Conducted noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.8.3 Voltage tolerance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.8.4 Power-management modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.9 Environmental specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.9.1 Ambient temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.9.2 Temperature gradient. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.9.3 Humidity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.9.4 Altitude. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.9.5 Shock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.9.6 Vibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

2.10 Acoustics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

2.11 Electromagnetic immunity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2.12 Reliability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2.13 Agency certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2.13.1 Safety certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2.13.2 Electromagnetic compatibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2.13.3 FCC verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

2.14 Environmental protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

2.14.1 European Union Restriction of Hazardous Substances (RoHS) Directive. . . . . 23

2.14.2 China Restriction of Hazardous Substances (RoHS) Directive . . . . . . . . . . . . . 23

2.15 Corrosive environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.0 Configuring and mounting the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

3.1 Handling and static-discharge precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

3.2 Configuring the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

3.3 Serial ATA cables and connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

3.4 Drive mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

4.0 Serial ATA (SATA) interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

4.1 Hot-Plug compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

4.2 Serial ATA device plug connector pin definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

4.3 Supported ATA commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

4.3.1 Identify Device command. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

4.3.2 Set Features command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

4.3.3 S.M.A.R.T. commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

5.0 Seagate Technology support services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

ii

DB35.3 Series Serial ATA Product Manual, Rev. D

DB35.3 Series Serial ATA Product Manual, Rev. D

iii

List of Figures

Figure 1. Typical 5V startup and operation current profile. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 2. Typical 12V startup and operation current profile. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Figure 3. Serial ATA connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Figure 4. Attaching SATA cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Figure 5. Mounting dimensions—top, side and end view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

DB35.3 Series Serial ATA Product Manual, Rev. D

1

1.0 Introduction

This manual describes the functional, mechanical and interface specifications for the following Seagate
DB35.3 Series Serial ATA model dr ives:

ST3750640SCE ST3500830SCE ST3320820SCE ST3250820SCE
ST3750840SCE ST3400820SCE ST3300820SCE

These drives provide the following key features:

• 7,200 RPM spindle speed.

• High instantaneous (burst) data-transfer rates (up to 150 Mbytes per second).

• Tunneling Magnetoresistive (TMR) recording heads.

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

• Native Command Queueing with command ordering to increase performance in demanding applications.

• 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.

• Supports latching SATA cables and connectors.

2

DB35.3 Series Serial ATA Product Manual, Rev. D

1.1 About the Serial ATA interface

The Serial ATA interface provides several advantages over the traditional Parallel ATA interface. The primary
advantages include:

• Easy installation and configuration with true plug-and-play connectivity. It is not necessary to set any jump­ers or other configuration options.

• Thinner and more flexible cabling for improved enclosure airflow and ease of installation.

• Scalability to higher performance levels.

In addition, Serial ATA makes the tra nsition fr om P a rall el ATA easy b y pro vi ding leg acy sof t war e sup port . S erial
ATA was designed to allow you to install a Serial ATA host adapter and Serial ATA disc drive in your current
system and expect all of your existing applications to work as normal.

The Serial ATA interface connects each disc drive in a point-to-point configuration with the Serial ATA host
adapter. There is no master/slave relationship with Serial ATA devices like there is with Parallel ATA. If two
drives are attached on one Serial ATA host adapter, the host operating system views the two devices as if they
were both “masters” on two separate ports. This essentially means both drives behave as if they are Device 0
(master) devices.

Note. The host adapter may, optionally, emulate a master/slave environment to host software where two

devices on separate Serial ATA ports are represented to host software as a Device 0 (master) and
Device 1 (slave) accessed at the same set of host bus addresses. A host adapter that emulates a
master/slave environment manages two sets of shadow registers. This is not a typical Serial ATA
environment.

The Serial ATA host adapter and drive share the function of emulating Parallel ATA device behavior to provide
backward compatibility with existing host systems and software. The Command and Control Block registers,
PIO and DMA data transfers, resets, and interrupts are all emulated.

The Serial ATA host adapter cont ai ns a set of registe rs that sha dow the conte nt s of the trad iti onal device r egis­ters, referred to as the Shadow Register Block. All Serial ATA devices behave like Device 0 devices. For addi­tional information about how Serial ATA emulates parallel ATA, refer to the “Serial ATA: High Speed Serialized
AT Attachment” specification. The specification can be downloaded from www.serialata.org.

DB35.3 Series Serial ATA Product Manual, Rev. D

3

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:

ST3750640SCE ST3500830SCE ST3320820SCE ST3250820SCE
ST3750840SCE ST3400820SCE ST3300820SCE

2.1 Specification summary tables

The specification s li sted in the fol lowing table are for quick r efer ence. For det ail s on sp ecifi cation measurement
or definition, see the appropriate section of this manual.

4

DB35.3 Series Serial ATA Product Manual, Rev. D

Table 1: Drive specificati o ns summary for 750 Gbyt e m odels

Drive specification ST3750640SCE ST3750840SCE

Formatted Gbytes (512 bytes/sector)* 750
Guaranteed sectors 1,465,149,168
Bytes per sector 512
Default sectors per track 63
Default read/write heads 16
Default cylinders 16,383
Recording density, max 926 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
I/O data-transfer rate, max 300 Mbytes/sec
ATA data-transfer modes supported PIO modes 0–4

Multiword DMA modes 0–2

Ultra DMA modes 0–6
Cach e buffer 16 Mbytes 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
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%

12V ± 10%
Ambient temperature 0° to 60°C (operating)

–40° to 70°C (nonoperating)
Temperature gradient, per hour max 20°C (operating)

30°C (nonoperating)
Relative humidity 5% to 90% (operating)

5% to 95% (nonoperating)
Relative humidity gradient, per hour max 30%
Wet bulb temperature, max 37.7°C (operating)

37.7°C (nonoperating)

Altitude, operating –60.96 m to 3,048 m

(–200 ft. to 10,000+ ft.)
Altitude, nonoperating , max –60.96 m to 12,192 m below mean sea level

(–200 ft. to 40,000+ ft. 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

22–350 Hz: 0.50 Gs

350–500 Hz:: 0.25 Gs

2

DB35.3 Series Serial ATA Product Manual, Rev. D

5

Drive specification ST3750640SCE ST3750840SCE

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

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

CE seek profile 3.0 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
Supports Hotplug operation per Serial ATA Revision 2.5

specification

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

and formatting.

**Dur ing per io ds of driv e idle, some offline activity ma y occ ur accor di ng to the S.M.A.R. T . speci ficati on , whi ch may i ncrea se ac oustic an d

power to operational levels.

22–350 Hz: 5.0 Gs
350–500 Hz:: 1.0 Gs

3.0 bels (max)

3.1 bels (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 o n the “Verify Your W arranty” 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.

Yes

6

DB35.3 Series Serial ATA Product Manual, Rev. D

T a ble 2: Drive specifications summary for 500 and 400 Gbyte models

Drive specification ST3500830SCE ST3400820SCE

Formatted Gbytes (512 bytes/sector)* 500 400
Guaranteed sectors 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 813 kbits/in 781 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 300 Mbytes/sec
ATA data-transfer modes supported PIO modes 0–4

Multiword DMA modes 0–2

Ultra DMA modes 0–6
Cach e 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 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%

12V ± 10%
Ambient temperature 0° to 62°C (operating)

–40° to 70°C (nonoperating)
Temperature gradient, per hour max 20°C (operating)

30°C (nonoperating)
Relative humidity 5% to 90% (operating)

5% to 95% (nonoperating)
Relative humidity gradient, per hour max 30%
Wet bulb temperature, max 37.7°C (operating)

37.7°C (nonoperating)

Altitude, operating –60.96 m to 3,048 m

(–200 ft. to 10,000+ ft.)
Altitude, nonoperating, max –60.96 m to 12,192 m below mean sea level

(–200 ft. to 40,000+ ft. 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

22–350 Hz: 0.50 Gs

350–500 Hz:: 0.25 Gs

2

128.2 Gbits/in

2

DB35.3 Series Serial ATA Product Manual, Rev. D

7

Drive specification ST3500830SCE ST3400820SCE

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

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

CE seek profile 3.0 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
Supports Hotplug operation per Serial ATA Revision

2.5 specification

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

and formatting.

**Dur ing per io ds of driv e idle, some offline activity ma y occ ur accor di ng to the S.M.A.R. T . speci ficati on , whi ch may i ncrea se ac oustic an d

power to operational levels.

22–350 Hz: 5.0 Gs
350–500 Hz:: 1.0 Gs

3.0 bels (max)

3.1 bels (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.

Yes

2.7 bels (typical)

2.9 bels (max)

2.9 bels (typical)

3.0 bels (max)

8

DB35.3 Series Serial ATA Product Manual, Rev. D

T a ble 3: Drive specifications summary for 320 and 300 Gbyte models

Drive specification ST3320820SCE ST3300820SCE

Formatted Gbytes (512 bytes/sector)* 320 300
Guaranteed sectors 625,142,448 586,072,368
Bytes per sector 512
Default sectors per track 63
Default read/write heads 16
Default cylinders 16,383
Recording density, max 781 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 300 Mbytes/sec
ATA data-transfer modes supported PIO modes 0–4

Multiword DMA modes 0–2

Ultra DMA modes 0–6
Cach e buffer 8 Mbytes
Height (mm max) 26.1 mm (1.028 inches)
Width (mm max) 101.6 mm (4.000 inches) +/- 0.010 inches
Length (mm max) 146.99 mm (5.787 inches)
Weight (max) 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%

12V ± 10%
Ambient temperature 0° to 65°C (operating)

–40° to 70°C (nonoperating)
Temperature gradient, per hour max 20°C (operating)

30°C (nonoperating)
Relative humidity 5% to 90% (operating)

5% to 95% (nonoperating)
Relative humidity gradient, per hour max 30%
Wet bulb temperature, max 37.7°C (operating)

37.7°C (nonoperating)

Altitude, operating –60.96 m to 3,048 m

(–200 ft. to 10,000+ ft.)
Altitude, nonoperating, max –60.96 m to 12,192 m below mean sea level

(–200 ft. to 40,000+ ft. 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

22–350 Hz: 0.50 Gs

350–500 Hz:: 0.25 Gs

2

DB35.3 Series Serial ATA Product Manual, Rev. D

9

Drive specification ST3320820SCE ST3300820SCE

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

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

CE seek profile 2.9 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
Supports Hotplug operation per Serial ATA Revision 2.5

specification

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

and formatting.

**Dur ing per io ds of driv e idle, some offline activity ma y occ ur accor di ng to the S.M.A.R. T . speci ficati on , whi ch may i ncrea se ac oustic an d

power to operational levels.

22–350 Hz: 5.0 Gs
350–500 Hz:: 1.0 Gs

2.9 bels (max)

3.0 bels (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 th e “Verify Y o ur W ar ranty” 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.

Yes

2.5 bels (typical)

2.7 bels (max)

2.8 bels (typical)

2.9 bels (max)

10

DB35.3 Series Serial ATA Product Manual, Rev. D

T a ble 4: Drive specifications summary for 250 Gbyte models

Drive specification ST3250820SCE

Formatted Gbytes (512 bytes/sector)* 250
Guaranteed sectors 488,397,168
Bytes per sector 512
Default sectors per track 63
Default read/write heads 16
Default cylinders 16,383
Recording density, max 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 Mby tes/ s ec
I/O data-transfer rate, max 300 Mbytes/sec
ATA data-transfer modes supported PIO modes 0–4

Multiword DMA modes 0 –2

Ultra DMA modes 0–6
Cach e 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 (1.28 lb.)
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%

12V ± 10%
Ambient temperature 0° to 65°C (operating)

–40° to 70°C (nonoperating)
Temperature gradient, per hour max 20°C (operating)

30°C (nonoperating)
Relative humidity 5% to 90% (operating)

5% to 95% (nonoperating)
Relative humidity gradient, per hour max 30%
Wet bulb temperature, max 37.7°C (operating)

37.7°C (nonoperating)

Altitude, operating –60.96 m to 3,048 m

(–200 ft. to 10,000+ ft.)
Altitude, nonoperating, max –60.96 m to 12,192 m below mean sea level

(–200 ft. to 40,000+ ft. below mean sea level)
Operational Shock, max 63 Gs at 2 msec
Non-Operational Shock, max 350 Gs at 2 msec
Vibration, operating 5–22 Hz: 0.25 Gs, Limited displacement

22–350 Hz: 0.50 Gs

350–500 Hz:: 0.25 Gs

2

DB35.3 Series Serial ATA Product Manual, Rev. D

11

Drive specification ST3250820SCE

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

Drive acoustics, sound power
Idle** 2.5 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)

Supports Hotplug operation per Serial ATA Revision 2.5
specification

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

and formatting.

**Dur ing per io ds of driv e idle, some offline activity ma y occ ur accor di ng to the S.M.A.R. T . speci ficati on , whi ch may i ncrea se ac oustic an d

power to operational levels.

22–350 Hz: 5.0 Gs
350–500 Hz:: 1.0 Gs

2.7 bels (max)

2.9 bels (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.

50,000

Yes

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DB35.3 Series Serial ATA Product Manual, Rev. D

2.2 Formatted ca pacity

Model

ST3750640SCE 750 Gbytes 1,465,149,168 512
ST3750840SCE 750 Gbytes 1,465,149,168 512
ST3500830SCE 500 Gbytes 976,773,168 512
ST3400820SCE 400 Gbytes 781,422,768 512
ST3320820SCE 320 Gbytes 625,142,448 512
ST3300820SCE 300 Gbytes 586,072,368 512
ST3250820SCE 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.

Formatted
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 4.3.1, "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 logi cal geometr y

Cylinders Read/write heads Sectors per track

16,383 16 63

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.

DB35.3 Series Serial ATA Product Manual, Rev. D

13

2.4 Recording and interface tech no l o gy

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

Interface Serial ATA (SATA)
Recording method Perpendicular
Recording density , KBPI (kbits/inch max) 926 813 781 813
Track density, KTPI (ktracks/inch avg) 145
Areal density (Gbits/inch2 avg) 128.2 114.4
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) 300 (Ultra DMA mode 5)

2.5 Physical characteristics

Drive specification

Maximum he i g ht

(mm)
(inches)

Maximum wid th

(mm)
(inches)

Maximum length

(mm)
(inches)

Typical weight

ST3320820SCE, ST3300820SCE and ST3250820SCE
ST3500830SCE and ST3400820SCE
ST3750640SCE and ST3750840SCE

Cache Size

ST3750640SCE

ST3750840SCE
ST3500830SCE
ST3400820SCE

ST3320820SCE
ST3300820SCE
ST3250820SCE

26.1

1.028

101.6

4.000 +/- 0.010

146.99

5.787

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

16 Mbytes
8 Mbytes

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DB35.3 Series Serial ATA Product Manual, Rev. D

2.6 Seek time

Seek measurem ent s a re t ake n wi th nom inal po w er a t 25 °C amb ient temperature. All tim es a re m easu red 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 statistical random average of at least 5,000 measurements of seeks between
random tracks, less overhead.

T yp ical 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 ar e de si gned to consisten tl y me et t he se ek t imes r epr esente d in thi s manu al. P hysical

seeks, regardless of mode (such as track-to-track and average), are expected to meet 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)
St andby to Ready (sec) 16 (max)
Ready to spindle stop (sec) 10 (max)

2.8 Power specifications

The drive recei ve s D C po we r ( +5V or +12V ) t hrou gh a native SATA power connector. See Fi gu re 4 on p age 26.

2.8.1 Power consumption

Power requiremen ts fo r the drive s are listed i n the t able on pa ge 9. Typical power measurements are based on
an average of drives tested, under nominal conditions, using 5.0V and 12.0V input voltage at 25°C ambient
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 toward a specific position on the disc surface and
does not execute a read or write operation. Servo electronics are active. Seek mode power represents the
worst-case 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 delay.

DB35.3 Series Serial ATA Product Manual, Rev. D

15

• Operating pow er and current

Operating powe r is me asure d usi ng 40 p ercen t ran dom seeks, 4 0 per cent r ead/ wri te m ode ( 1 write for each
10 reads) and 20 percent drive idle mode.

• Idle mode power

Idle mode power is measu red with the drive up to speed, with servo e le ctron ics acti ve and with the he ads i n
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 5: DC power requirements

Power dissipation (ST3750640SCE values shown) Avg (watts 25° C) Avg 5V typ amps Avg 12V typ amps

Spinup — — 2.0 (peak)
Idle* 9.30 0.611 0.540
Idle* (with offline activity) 10.40 0.719 0.567
Operating (CE seeks) 9.4 0.580 0.540
Standby 0.80 0.106 0.023
Sleep 0.80 0.106 0.023

*Duri ng pe riods of driv e idl e, some off lin e a c tivit y ma y occu r ac cord in g t o t he S.M .A. R. T. speci fic ation , w hich may increas e acou s tic an d

power to operational levels.

2.8.1.1 Typical current profiles

Figure 1. Typical 5V startup and operation current profile

16

DB35.3 Series Serial ATA Product Manual, Rev. D

Figure 2. Typical 12V startup and operation current profile

2.8.2 Conducted noise

Input noise ripple is measured at the host system power 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 oper ate wi th a maxim um of 120 mV peak-to -pea k 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.

2.8.3 Voltage tolerance

Voltage tolerance (including noise):
5V ± 5%

12V ± 10%

2.8.4 Power-manag ement mo des

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 modes 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.

DB35.3 Series Serial ATA Product Manual, Rev. D

17

• 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 Sleep command from the host. 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.

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DB35.3 Series Serial ATA Product Manual, Rev. D

2.9 Environmen tal 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 75°C (167°F) within the operating ambient conditions. Rec­ommended measurement locations are shown in Figure 5 on page 27.

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:
ST3320820SCE, ST3300820SCE and ST3250820SCE
ST3500830SCE and ST3400820SCE
ST3750640SCE and ST3750840SCE

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

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)

2.9.2 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

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.)

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.

DB35.3 Series Serial ATA Product Manual, Rev. D

19

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 350 Gs based o n a nonr epetitive hal f-sine shock pulse
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 o n a nonr epetitive hal f-sine shock pulse
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 maximum vibration levels that the drive may experience while meeting the performance standards speci­fied in this document are specified below.

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 maximum nonoperating vibration levels that the drive may experience without incurring physical damage
or degradation in performance when subsequently put into operation are specified below.

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

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DB35.3 Series Serial ATA Product Manual, Rev. D

2.10 Acoustics

Drive acoustics are measured as overall 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 p er second is de fined

by the following equation:

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

Table 6: Fluid Dynamic Bearing (FDB) motor acoustics

Idle* CE seek profile

ST3750640SCE
ST3750840SCE

ST3500830SCE 2.8 bels (typ)

ST3400820SCE 2.7 bels (typ)

ST3320820SCE 2.7 bels (typ)

ST3300820SCE 2.5 bels (typ)

ST3250820SCE 2.5 bels (typ)

*Duri ng pe riods of driv e idl e, some off lin e a c tivit y ma y occu r ac cord in g t o t he S.M .A. R. T. speci fic ation , w hich may increas e acou s tic an d

power to operational levels.

2.8 bels (typ)

3.0 bels (max)

3.0 bels (max)

2.9 bels (max)

2.9 bels (max)

2.7 bels (max)

2.7 bels (max)

3.0 bels (typ)

3.1 bels (max)

3.0 bels (typ)

3.1 bels (max)

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)

DB35.3 Series Serial ATA Product Manual, Rev. D

21

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:

T a bl e 7: Radio frequency enviro nm en t s

Test Description Performance level Reference standard

Electrostatic
discharge

Radiated RF
immunity

Electrical fast
transient

Surge immunity ± 1 kV differential, ± 2 kV common, AC mains B EN 61000-4-5: 95
Conducted RF

immunity
Voltage dips,

interrupts

Contact, HCP, VCP: ± 4

80 to 1,000 MHz, 3 V/m,
80% AM with 1 kHz sine
900 MHz, 3 V/m, 50% pulse modulation @ 200 Hz

± 1 kV on AC mains, ± 0.5 kV on external I/O B EN 61000-4-4: 95

150 kHz to 80 MHz, 3 Vrms, 80% AM with 1 kHz sine A EN 61000-4-6: 97

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

kV; Air: ± 8 kV B EN 61000-4-2: 95

A EN 61000-4-3: 96

C
C
C
B

ENV 50204: 95

EN 61000-4-1 1: 94

2.12 Reliability

Nonrecoverable read errors 1 per 1014 bits read, max
Annualized Failure Rate (AFR) 0.68% (nominal power, 25°C ambient temperature)
Contact start-stop cycles 50,000 cycles

Warranty 5 years on distribution units.

Preventive maintenance None required.

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

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.

2.13 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.

2.13.2 Electromagnetic comp atib ility

Hard drives that display the CE mark comply with the E uro pean Un ion (E U) re quirem ent s speci fie d i n 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.

22

DB35.3 Series Serial ATA Product Manual, Rev. D

Seagate uses an inde pend ent laboratory to confirm compl ian ce with the EC directives specified i n t he pr evious
paragraph. Drives are teste d in representa tive 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 com ply with the Electr omag netic Inter fere nce/E lectro magn etic Susce ptibil ­ity (EMI/EMS) for Class B products. Drives ar e 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: Singapore and China

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 requirements of the Australian Communi­cation Authority (ACA).

2.13.3 FCC verification

These drives are intended to be cont ai ned solely w ithin a person al compute r or similar enclosu re (no t attached
as an external device ). As su ch, ea ch dr ive is co nsidere d to be a suba ssembly even when it is individually mar ­keted to the customer. A s 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 with 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 interfer ence will not occur in a particular inst allation. If this equipm ent
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 away from the radio or TV.

• Plug the computer into a different outlet so that the receiver and computer are on different branch outlets.

DB35.3 Series Serial ATA Product Manual, Rev. D

23

If necessary, you should consult your dealer or an experienced radio/television technician for additional sug-

2

gestions. You may 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, Washington, DC 20402. Refer to publication num­ber 004-000-00345-4.

2.14 Environmental protection

Seagate designs its products to meet environmental protection requirements worldwide, including regulations
restricting certain chemica l subst ances .

2.14.1 European Union Restriction of Hazardous Substances (RoHS) Directive

Seagate designs its products to meet environmental protection requirements worldwide, including regulations
restricting certain chemical substances. A new law, the European Union Restriction of Hazardous Substances
(RoHS) Directive, restricts the presence of chemical substances, including Lead, Cadmium, Mercury,
Hexavalent Chromium, PBB and PBDE, in electronic products, effective July 2006. This drive is manufactured
with components and materials that comply with the RoHS Directive.

2.14.2 China Restriction of Hazardous Substances (RoHS) Directive

.14.2

This product has an Environmental Protection Use Period (EPUP) of 20 years. The following
table contains information mandated by China's "Marking Requirements for Control of Pollution
Caused by Electronic Information Products" Standard.

"O" indicates the hazardous and toxic substance content of t he p a rt (at the hom ogeno us m ater ial l evel) is l ower
than the threshold defined by the China RoHS MCV Standard.

O”

"X" indicates the hazardous and toxic substance content of the part (at the homogenous material level) is over
the threshold defined by the China RoHS MCV Standard.

中国限制危险物品的指令

表示该部件（于同类物品程度上）所含的危险和有毒物质低于中国

RoHS MCV

标准所定义的门槛值。

X”

表示该部件（于同类物品程度上）所含的危险和有毒物质超出中国

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

RoHS MCV

标准所定义的门槛值。

24

DB35.3 Series Serial ATA Product Manual, Rev. D

chemicals as electronic drive component reliability can be affected by the installation environment. The silver,
copper , nicke l and gold films used i n Seag ate pr oduct s are especi ally sen s itive to the p resen ce of sulf ide, 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 am bient rel at ive hum idity gr eate r th an 9 5%. Mat erial s used in cabin et fa bri cation , 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 Serial ATA Product Manual, Rev. D

25

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 pr ecautions

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 yourself frequently by touching the metal

chassis of a computer that is plugg ed into a grounded outlet. Wear a grounded wrist strap through out 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 labels from the drive or cover them with additional labels. Removal voids

the warranty. Some factory-installed labels contain information needed to service the drive. Other labels are
used to seal out dirt and contamination.

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DB35.3 Series Serial ATA Product Manual, Rev. D

3.2 Configuring the drive

S

Each drive on the Serial ATA interface connects point-to-point with the Serial ATA host adapter. There is no
master/slave relationship because each drive is considered a master in a point-to-point relationship. If two
drives are attached on one Serial ATA host adapter, the host operating system views the two devices as if they
were both “masters” on two separate ports. Both drives behave as if they are Device 0 (master) devices.

Serial ATA drives are designed for easy installation. It is usually not necessary to set any jumpers on the drive
for proper operation; however, if you connect the drive and receive a “drive not detected” error, your SATA­equipped mother boar d or hos t ada pter may use a chipse t tha t do es no t supp ort SATA spee d au toneg otiation . If
you have a motherboard or host adapter that does not support autonegotiation:

• Install a jumper as shown in Figure 3 below to limit the data transfer rate to 1.5 Gbits per second (and leave
the drive conne cted to the SATA-e quipped mo therboard or host a dapter tha t doesn’ t support autonegotiat ion)
or

• Install a SATA host adapter that supports autonegotiation, leave the drive jumper block set to “Normal
operation” (se e Figure 3 below), and connect the drive to that adapter. Thi s option has the benefit of not l imiting
the drive to a 1.5 Gbits/sec transfer rate.

3.0 Gbits per second operation

Limit data transfer rate to

1.5 Gbits per second

Jumper block

SATA interface connector

Figure 3. Serial ATA connectors

SATA power connector

3.3 Serial ATA cables and connectors

The Serial ATA interface cable consists of four conductors in two differential pairs, plus three ground connec­tions. The cable size may be 30 to 26 AWG with a maximum length of one meter (39.37 inches). See Table 8
for connector pin definitions. Either end of the SATA signal cable can be attached to the drive or host.

For direct backplane connection, the drive connectors are inserted directly into the host receptacle. The drive
and the host receptacle incorporate features that enable the direct connection to be hot pluggable and blind
mateable.

For installations which require cables, you can connect the drive as illustrated in Figure 4.

Signal connector

Power connector

ignal cable

Power cable

Figure 4. At tac hing SATA cabling

Each cable is keyed to ensure correct orient ation . DB35.3 Series S erial ATA drives suppo rt latching S ATA con­nectors.

DB35.3 Series Serial ATA Product Manual, Rev. D

27

3.4 Drive mounting

(

Recommended

n

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 5 on page 27 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.

• The screws should be inserted no more than 0.150 inch (3.81 mm) into the bottom or side mounting holes.

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

[1]

5.787 (146.9898) max.

.814

(20.676)

(2 x 95.25)

1.638

(41.605)

[1]

4.000

(101.6)

CLof drive

[1]

2 x 3.750

[1]

4.000

(101.60)

1.028 max

(26.111 max)

2 x 1.625

(2 x 41.28)

[1]

Notes:

Dimensions are shown in inches (mm).
[1] Dimensions per SFF-8301 specification

[1]

1.122

+ .020

(28.499

+ .508)

[1]

.138

3.505)

CLof conn. Datum B

2.00

(50.80)

case temperature
measurement locatio

.250 + .015

(6.35 + .381)

(3x both sides)

4.000

(101.6)

[1]

Figure 5. Mounting dime nsions—top, side and e nd v ie w

2 x 1.750

(2 x 44.45)

Recommended
case temperature
measurement location

[1]

28

DB35.3 Series Serial ATA Product Manual, Rev. D

DB35.3 Series Serial ATA Product Manual, Rev. D

29

4.0 Seria l ATA (SATA) interface

These drives use the industry-standard Serial ATA interface that supports FIS data transfers. It supports ATA
programmed input/output (PIO) modes 0–4; multiword DMA modes 0–2, and Ultra DMA modes 0–6.

For detailed information about the Serial ATA interface, refer to the “Serial ATA: High Speed Serialized AT
Attachment” specification.

4.1 Hot-Plug compatibility

DB35.3 Series Serial ATA drives incorporate connectors which enable you to hot plug these drives in accor­dance with the Serial ATA II: Extension to Serial ATA 1.0a specification. This specification can be downloaded
from www.serialata.org.

30

DB35.3 Series Serial ATA Product Manual, Rev. D

4.2 Serial ATA device plug connector pin definitions

Table 8 summarizes the signals on the Serial ATA interface and power connectors..

Table 8: Serial ATA connector pin definitions

Segment Pin Function Definition

S1 Ground 2nd mate
S2 A+ Differential signal pair A from Phy
S3 A­S4 Ground 2nd mate
S5 B- Differential signal pair B from Phy
S6 B+

Signal

S7 Ground 2nd mate

Key and spacing separate signal and power segments

P1 V
P2 V
P3 V

33

33

33

3.3V power

3.3V power

3.3V power, pre-charge, 2nd mate
P4 Ground 1st mate
P5 Ground 2nd mate
P6 Ground 2nd mate

5V power, pre-charge, 2nd mate
5V power
5V power

Power

P7 V
P8 V
P9 V

5

5

5

P10 Ground 2nd mate
P11 Ground or LED signal If grounded, drive does not use deferred spin
P12 Ground 1st mate.
P13 V
P14 V
P15 V

12

12

12

12V power, pre-charge, 2nd mate
12V power
12V power

Notes:

1. All pins are in a single row, with a 1.27 mm (0.050”) pitch.

2. The comments on the mating sequence apply to the case of backplane blindmate connector only. In this
case, the mating sequences are:

• the ground pins P4 and P12.

• the pre-charge power pins and the other ground pins.

• the signal pins and the rest of the power pins.

3. There are three power pins for each voltage. One pin from each voltage is used for pre-charge when
installed in a blind-mate backplane configuration.

4. All used voltage pins (Vx) must be terminated.

DB35.3 Series Serial ATA Product Manual, Rev. D

31

4.3 Supported ATA commands

The following table lists Serial ATA standard commands that the drive supports. For a detailed description of
the ATA commands, refer to the Serial ATA: High Speed Serialized AT Attachment specification. See
“S.M.A.R.T. commands” on page 38.for details and subcommands used in the S.M.A.R.T. implementation.

Table 9: Supported ATA commands

Command nam e Command code (in hex)

Check Power Mode 98H or E5
Device Configuration Freeze Lock B1H / C1
Device Configuration Identify B1H / C2
Device Configuration Restore B1H / C0
Device Configuration Set B1H / C3
Device Rese t 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

32

DB35.3 Series Serial ATA Product Manual, Rev. D

Command name Command code (in hex)

Security Erase Unit F4
Security Freeze F5
Security Set Password F1
Securit y Un l o ck 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 Values B0H / D3
S.M.A.R.T. Write Log Sector B0H / D6
Standby 96H or E2
St andby Immediate 94H or E0
Write Buffer E8
Write DMA CA
Write DMA Extended 35
Write DMA FUA Extended CD
Write DMA Without Retries CB
Write Log Extended 3F
Write Multiple C5
Write Multiple Extended 39
Write Multiple FUA Extended CE
Write Sectors 30
Write Sectors Without Retries 31
Write Sectors Extended 34

H

H

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 Serial ATA Product Manual, Rev. D

33

4.3.1 Identify Device command

The Identify Device command (command code ECH) transfers information about the drive to the host following
power up. The data is organized as a single 512-byte block of data, whose contents are shown in Table 9 on
page 31. 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 Serial ATA specifica­tion.

Word Description Value

0

Configuration information:

• Bit 15: 0 = ATA; 1 = ATAPI

• Bit 7: removable media

0C5A

• Bit 6: removable controller

• Bit 0: reserved
1 Number of logical cylinders 16,383
2 ATA-reserved 0000

H

3 Number of logical heads 16
4 Retired 0000
5 Retired 0000

H
H

6 Number of logical sectors per logical track: 63 003F
7–9 Retired 0000

H

10–19 Serial number: (20 ASCII characters, 0000H = none) ASCII
20 Retired 0000
21 Retired 0400
22 Obsolete 0000
23–26 Firmware revision (8 ASCII character string, padded with blanks to end

H
H
H

x.xx

of string)

27–46 Drive model number: (40 ASCII characters, padded with blanks t o end

of string)

H

H

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

8010

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 Multiple

xxxx

command

H

H

H
H
H
H
H

H
H
H
H
H

34

DB35.3 Series Serial ATA Product Manual, Rev. D

Word Description Value

60–61 Total number of user-addressable LBA sectors available

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 (see note following this

xx07
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 Serial ATA capabilities xxxx
77 Reserved for future Serial ATA definition xxxx
78 Serial ATA features supported x xxx
79 Serial ATA features enabled xxxx
80 Major version number 003E
81 Minor version number 0000
82 Command sets supported 364B
83 Command sets supported 7C03
84 Command sets support extension 4003
85 Command sets enabled 30xx
86 Command sets enabled 0001
87 Command sets enable extension 4000
88 Ultra DMA support and current mode (see note following this table) xx3F
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 Section

2.2 for related information). These words are required for drives that
support the 48-bit addressing feature. Maximum value:
0000FFFFFFFFFFFFh.

ST3750640SCE = 1,465,149,168

ST3750840SCE = 1,465,149,168

ST3500830SCE = 976,773,168

ST3400820SCE = 781,422,768

ST3320820SCE = 625,142,448

ST3300820SCE = 586,072,368

ST3250820SCE = 488,397,168

ST3200820SCE = 390,721,968

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 Serial ATA Product Manual, Rev. D

35

Word Description Value

104–
127

128 Security status 0001
129–

159
160–

254
255 Integrity word xxA5

ATA-reserved 0000

Seagate-reserved xxxx

ATA-reserved 0000

H

H

H

H

H

Note. Advanced Power Management (APM) and Automatic Acoustic Management (AAM) features are not supported

36

DB35.3 Series Serial ATA Product Manual, Rev. D

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.
6 Ultra DMA mode 6 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.
14 Ultra DMA mode 6 is currently active.

DB35.3 Series Serial ATA Product Manual, Rev. D

37

4.3.2 Set Features command

This command con trols the implement ation of var ious features that the dr iv e sup port s. When the drive 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:

T a ble 10: Set Features com mand values

02
03

10
55
82
90
AA
F1

Enable write cache (default).

H

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

H

Sector Count register values:
00

Set PIO mode to default (PIO mode 2).

H

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

01

H

PIO mode 0

08

H

PIO mode 1

09

H

PIO mode 2

0A

H

PIO mode 3

0B

H

PIO mode 4 (default)

0C

H

Multiword DMA mode 0

20

H

Multiword DMA mode 1

21

H

Multiword DMA mode 2

22

H

Ultra DMA mode 0

40

H

Ultra DMA mode 1

41

H

42HUltra DMA mode 2

Ultra DMA mode 3

43

H

Ultra DMA mode 4

44

H

Ultra DMA mode 5

45

H

Ultra DMA mode 6

46

H

Enable use of SATA features

H

Disable read look-ahead (read cache) feature.

H

Disable write cache

H

Disable use of SATA features

H

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

H

Report full capacity available

H

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

cated above.

38

DB35.3 Series Serial ATA Product Manual, Rev. D

4.3.3 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-5 Standard.

SeaTools diagnostic software activates a built-in drive self-test (DST S.M.A.R.T. command for D4H) that elimi­nates unnecessary drive returns. The diagnostic software ships with all new drives and is also available at:
http://seatools.seagate.com.

This drive is ship ped wi th S. M.A.R. T. features disabled. You must have a recent BIOS or so ft ware pa ckage 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.

T a ble 11: S.M.A.R.T. commands

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 0x 04

(abort) is written to the Error register.

DB35.3 Series Serial ATA Product Manual, Rev. D

39

5.0 Seagate Technology support services

Internet

For information regarding Seagate products and services, visit www.seagate.com. Worldwide support is
available 24 hours daily by email for your questions.

Presales Support:

[e-mail]

T e chn i cal Supp or t:

[e-mail]

Warranty Support:

http://www.seagate.com/support/service/index.html

mySeagate

my.seagate.com is the industry's first Web portal designed specifically for OEMs and distributors. It provides
self-service access to critical applications, personalized content and the tools that allow our partners to
manage their Seagate account functions. Submit pricing requests, orders and returns through a single,
password-protected 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 customiz e d communi cation s that ar e not ava ila ble on the web. The s e communi catio ns cont ai n
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.

40

DB35.3 Series Serial ATA Product Manual, Rev. D

Customer Service Operations

Warranty Service

Seagate offer s worldwi de custom er supp ort for Seagate pro duct s . Seagate distr i butors, OEM s 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 Seagate
warranty service for assistance. Have your serial number and model or part number available.

Data Recove ry Services

Seagate offers data recovery services for all formats and all brands of storage media. Our data recovery
services labs are currently located throughout the world. . Additional information, including an online request
form and data loss prevention resources, is available at http://services.seagate.com/index.aspx

Authorized Service Centers

Seagate Service Centers are available on a global basis for the return of defective products. Contact your
customer support representative for the location nearest you.

USA/Canada/Latin America support services

For an extensive list of telephone numbers to technical support, presales and warranty service in USA/
Canada/Latin America, including business hours, go to the "Contact Us" page on www.seagate.com.

Global Customer Support

Presales, Technical, and Warranty Support
Call Center Toll-free Direct dial

USA, Canada,
and Mexico 1-800-SEAGATE [phone]

Data Recovery Services
Call Center Toll-free Direct dial FAX

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

Europe, the Middle East and Africa Support Services

For an extensive list of telephone numbers to technical support, presales and warranty service in Europe, the
Middle East and Africa, go to the "Contact Us" page on www.seagate.com.

Asia/Pacific Support Services

For an extensive list of telephone numbers to technical support, presales and warranty service in Asia/Pacific,
go to the "Contact Us" page on www.seagate.com.

DB35.3 Series Serial ATA Product Manual, Rev. D

41

Index

A

ACA 22
acceleration 19
acoustics 20
Active 16
Active mode 16
actuator arm 14
Agency certification 21
altitude 18
Ambient temperature 18
ambient temperature 14
Annualized Failure Rate (AFR) 21
areal density 13
ATA commands 31
Australia/New Zealand Standard AS/NZS3548 1995

22

Australian Communication Authority (ACA) 22
Australian C-Tick 22
Average latency 14
Average seek time 14

B

BPI 13

C

cables and connectors 26
capacity 12
case temperature 18
CE mark 21
certification 21
Check Power Mode 31
China RoHS directive 23
Class B computing device 22
compatibility 21
Conducted noise 16
Conducted RF immunity 21
Configuring the drive 25
connectors 26
Corrosive environmen t 23
CSA C22.2 (950) 21
cycles 21
Cylinders 12

D

data-transfer rates 1
DC power 14
Default logical geometry 12
density 13
Device Configuration Freeze Lock 31
Device Configuration Identify 31

Device Configuration Restore 31
Device Configuration Set 31
Device Reset 31
dimensions 27
disc surface 14
dissipation 15
Download Microcode 31

E

ecording heads 1
Electrical fast transient 21
Electromagnetic compatibility 21
Electromagnetic Compatibility (EMC) 22
Electromagnetic Compatibility control Regulation 22
Electromagnetic Co mpati b ility Directive (8 9/336/EEC)

21

Electromagnetic immunity 21
Electrostatic discharge 21
electrostatic discharge (ESD) 25
EN 55022, Class B 21
EN 55024 21
EN 60950 21
Environmental specifications 18
error-correction algorithms 1
errors 21
ESD 25
EU 21
EU RoHS directive 23
European Union (EU) requirements 21
Execute Device Diagnostics 31

F

FCC verification 22
features 1
Federal Communications Commission 22
Flush Cache 31
Flush Cache Extended 31
Format Track 31
Formatted capacity 12

G

geometry 12
Gs 19
guaranteed sectors 12

H

Handling precautions 25
heads 1, 12
height 13
humidity 18

I

I/O data-transfer rate 13

42

DB35.3 Series Serial ATA Product Manual, Rev. D

Identify Device 31
Identify Device command 33
Idle 16, 31
Idle Immediate 31
Idle mode 15, 17
IEC950 21
Information Technology Equipment (ITE) 21
Initialize Device Parameters 31
Input noise ripple 16
input voltage 14
interface 13, 29
internal data-transfer rate OD 13
is 14
ISO document 7779 20
ITE 21

point-to-point 2, 26
Power consumption 14
power consumption 14
power dissipation 15
Power modes 16
Power specifications 14
Power-management modes 16
Power-on to Ready 14
precautions 25
printed circuit board 25
programmable power management 16

Q

quick reference 3

K

Korea Ministry of Information and Communication

(MIC) 22

Korean RRL 22

L

latency 14
latency time 14
LBA mode 12
length 13
logical geometry 12

M

maintenance 21
master/slave 2
maximum temperature 18
MIC 22
mounting 27
mounting screws 18
mounting the drive 25

N

noise 16
nominal power 14
Nonoperating shock 19
Nonoperating vibration 19
Nonrecoverable read errors 21

O

operating 15
Operating power 15
Operating shock 18
Operating vibration 19

P

Physical characteristics 13

R

Radiated RF immunity 21
Radio and television interference 22
radio frequency (RF) 21
random seeks 14, 15
Read Buffer 31
Read DMA 31
Read DMA Extended 31
Read DMA without Retries 31
read errors 21
Read Log Ext 31
Read Multiple 31
Read Multiple Extended 31
Read Native Max Address 31
Read Native Max Address Extended 31
Read Sectors 31
Read Sectors Extended 31
Read Sectors Without Retries 31
Read Verify Sectors 31
Read Verify Sectors Extended 31
Read Verify Sectors Without Retries 31
read/write actuator arm 14
Read/write heads 12
Read/write power 14
Recalibrate 31
recording density 13
recording method 13
Recording technology 13
relative humidity 18
Reliability 21
RF 21
RMS read/write current 16
RoHS 23
RRL 22

S

S.M.A.R.T. Disable Operations 32
S.M.A.R.T. Enable/Disable Autosave 32
S.M.A.R.T. Enagle Operations 32

DB35.3 Series Serial ATA Product Manual, Rev. D

43

S.M.A.R.T. Execute Offline 32
S.M.A.R.T. implementation 31
S.M.A.R.T. Read Attribute Thresholds 32
S.M.A.R.T. Read Data 32
S.M.A.R.T. Read Log Sector 32
S.M.A.R.T. Return Status 32
S.M.A.R.T. Sav e Attribute Values 32
S.M.A.R.T. Write Log sector 32
Safety certification 21
SATA 29
screws 18
sectors 12
Sectors per track 12
Security Disable Password 31
Security Erase Prepare 31
Security Erase Unit 32
Security Freeze 32
Security Set Password 32
Security Unlock 32
Seek 32
seek mode 14
Seek mode power 14
Seek time 14
Serial ATA (SATA) interface 29
serial ATA ports 2
Servo electronics 14
servo electronics 15
Set Features 32
Set Max Address 32
Set Max Address Extended 32
Set Multiple Mode 32
Shock 18
single-track seeks 14
Sleep 15, 16, 32
Sleep mode 17
sound 20
Specification summary table 3
spindle speed 13
Spinup 15
Spinup power 14
Standby 15, 16, 32
Standby Immediate 32
Standby mode 15, 17
standby timer 17
Standby to Ready 14
Start/stop times 14
start-stop cycles 21
static-discharge 25
support services 39
Surge immunity 21

timer 17
timers 17
TMR 1
track density 13
Track-to-track 14
Track-to-track seek time 14
Tunneling Magnetoresistive 1
TUV North America 21

U

UL 1950 21

V

Vibration 19
voltage 14
Voltage dips, interrupts 21
Voltage tolerance 16

W

weight 13
wet bulb temperature 18
width 13
Write Buffer 32
Write DMA 32
Write DMA Extended 32
Write DMA FUA Extended 32
Write DMA Without Retries 32
Write Log Extended 32
Write Multiple 32
Write Multiple Extended 32
Write Multiple FUA Extended 32
Write Sectors 32
Write Sectors Extended 32
Write Sectors Without Retries 32

T

technical support services 39
temperature 14, 18
temperature gradient 18

44

DB35.3 Series Serial ATA Product Manual, Rev. D

Seagate Technology LLC

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

Publication Number: 100427570, Rev. D, Printed in U.S.A.