Seagate ST320LT025, ST320LT012, ST250LT025, ST500LT034, ST320LT032 Product Manual

Product Manual

Seagate® Laptop Thin HDD

5400 RPM
formerly Momentus® Thin SATA

Standard models

ST500LT012
ST320LT012
ST250LT012

Standard models w/ZGS

ST500LT034
ST320LT032
ST250LT028

Self-Encrypting Drive models

ST500LT025
ST320LT025
ST250LT025

SED (FIPS 140-2) models

ST500LT015
ST320LT015
ST250LT015

Gen 9.2
100713732
Rev. K
November 2014

Document Revision History

Revision Date Description of Change

Rev . A 01/18/2013 Initial release.
Rev. B 02/05/2013 2, 4-7 & 10.
Rev. C 03/05/2013 1 & 17-18.
Rev. D 04/12/2013 4, 6 & 17.
Rev. E 07/25/2013 4-6, 12, 17 & 18.
Rev. F 09/04/2013 fc & 2.
Rev. G 11/06/2013 2, 20-21 & 24-26.
Rev. H 05/08/2014 below, 3, 5, 11-12, 14-15, 17-18 & 30.
Rev. J 06/11/2014 fc, 2, 10, 16 & 22.
Rev. K 11/07/2014 5 & 12.

a

© 2014 Seagate Technology LLC. All rights reserved.
Publication number: 100713732, Rev. K November 2014

Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC in the United States and/or
other countries. SeaTools is either a trademark or registered trademark of Seagate Technology LLC or one of its affiliated companies
in the United States and/or other countries. The FIPS logo is a certification mark of NIST, which does not imply product endorsement
by NIST, the U.S., or Canadian governments. All other trademarks or registered trademarks are the property of their respective
owners.

No part of this publication may be reproduced in any form without written permission of Seagate Technology LLC.
Call 877-PUB-TEK1(877-782-8351) to request permission.

When referring to drive capacity , one gigabyte, or GB, equals one billion bytes and one terabyte, or TB, equals one trillion bytes. Your
computer’s operating system may use a different standard of measurement and report a lower capacity . In addition, some of the listed
capacity is used for formatting and other functions, and thus will not be available for data storage. Actual quantities will vary based on
various factors, including file size, file format, features and application software. Actual data rates may vary depending on operating
environment and other factors. The export or re-export of hardware or software containing encryption may be regulated by the U.S.
Department of Commerce, Bureau of Industry and Security (for more information, visit
and use outside of the U.S. Seagate reserves the right to change, without notice, product offerings or specifications.

www.bis.doc.gov), and controlled for import

CONTENTS

SEAGATE TECHNOLOGY SUPPORT SERVICES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.0 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.1 ABOUT THE SERIAL ATA INTERFACE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.0 DRIVE SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.1 FORMATTED CAPACITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.1.1 LBA mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.2 PHYSICAL ORGANIZATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.3 RECORDING AND INTERFACE TECHNOLOGY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.4 PHYSICAL CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.5 SEEK TIME . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.6 START/STOP TIMES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.7 POWER SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.7.1 Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.7.2 Conducted noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.7.3 Voltage tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.7.4 Power management modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.8 ENVIRONMENTAL SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.8.1 Shock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.8.2 Vibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.9 ACOUSTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.9.1 Test for prominent discrete tones (PDTs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.10 ELECTROMAGNETIC IMMUNITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.11 RELIABILITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.12 AGENCY CERTIFICATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.12.1 Safety certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.12.2 Electromagnetic Compatibility (EMC). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.12.3 FCC verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.13 ENVIRONMENTAL PROTECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.13.1 European Union Restriction of Hazardous Substances (RoHS) Directive. . . . . 14

2.13.2 China Restriction of Hazardous Substances (RoHS) Directive . . . . . . . . . . . . 15

2.14 CORROSIVE ENVIRONMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.0 CONFIGURING AND MOUNTING THE DRIVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.1 HANDLING AND STATIC-DISCHARGE PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.2 CONFIGURING THE DRIVE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.2.1 Serial ATA Cables and Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.3 DRIVE MOUNTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.0 ABOUT FIPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

5.0 ABOUT (SED) SELF-ENCRYPTING DRIVES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.1 DATA ENCRYPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.2 CONTROLLED ACCESS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.2.1 Admin SP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.2.2 Locking SP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.2.3 Default password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.2.4 ATA Enhanced Security. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.3 RANDOM NUMBER GENERATOR (RNG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

5.4 DRIVE LOCKING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

5.5 DATA BANDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

5.6 CRYPTOGRAPHIC ERASE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

SEAGATE LAPTOP THIN HDD PRODUCT MANUAL, REV. K I

CONTENTS

5.7 AUTHENTICATED FIRMWARE DOWNLOAD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

5.8 POWER REQUIREMENTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

5.9 SUPPORTED COMMANDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

5.10 REVERTSP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

6.0 SERIAL ATA (SATA) INTERFACE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

6.1 HOT-PLUG COMPATIBILITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

6.2 SERIAL ATA DEVICE PLUG CONNECTOR PIN DEFINITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 22

6.3 SUPPORTED ATA COMMANDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

6.3.1 Identify Device command. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

6.3.2 Set Features command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

6.3.3 S.M.A.R.T. commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

SEAGATE LAPTOP THIN HDD PRODUCT MANUAL, REV. K II

FIGURES

FIGURE 1TYPICAL 5V STARTUP AND OPERATION CURRENT PROFILE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

FIGURE 2ATTACHING SATA CABLING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

FIGURE 3MOUNTING DIMENSIONS (FOR STANDARD MODELS). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

FIGURE 4MOUNTING DIMENSIONS (FOR FIPS 140-2 MODELS). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

FIGURE 5EXAMPLE OF FIPS TAMPER EVIDENCE LABELS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

SEAGATE LAPTOP THIN HDD PRODUCT MANUAL, REV. K III

Seagate Technology Support Services

For information regarding online support and services, visit:
Available services include:

http://www.seagate.com/about/contact-us/technical-support/

• Presales & Technical support

• Global Support Services telephone numbers & business hours

• Authorized Service Centers

For information regarding Warranty Support, visit:
For information regarding data recovery services, visit:
For Seagate OEM and Distribution partner portal, visit:
For Seagate reseller portal, visit:

http://www.seagate.com/partners/my-spp-dashboard/

http://www.seagate.com/support/warranty-and-replacements/

http://www.seagate.com/services-software/data-recovery-services/
http://www.seagate.com/partners/

Seagate Laptop Thin HDD Product Manual, Rev. K 1

1.0 Introduction

This manual describes the functional, mechanical and interface specifications for the following Seagate® Laptop Thin HDD model drives:

Standard models

Standard models

with ZGS

Standard SED models SED (FIPS 140-2) models

ST500LT012 - 1DG142 ST500LT034 - 1DGG42 ST500LT025 - 1DH142 ST500LT015 - 1DJ142

ST320LT012 - 1DG14C ST320LT032 - 1DGG4C ST320LT025 - 1DH14C ST320LT015 - 1DJ14C

ST250LT012 - 1DG141 ST250LT028 - 1DGG41 ST250LT025 - 1DH141 ST250LT015 - 1DJ141

Previous generations of Seagate Self-Encrypting Drive models were

NOTE

called Full Disk Encryption (FDE) models before a differentiation between

drive-based encryption and other forms of encryption was necessary.
For more information on SED drives see About (SED) Self-Encrypting Drives on page 20.
For more information on FIPS 140-2 Level 2 certification see About FIPS

on page 19.

These drives provide the following key features:

 5400-RPM spindle speed.
 16MB buffer.
 Quiet operation. Fluid Dynamic Bearing (FDB) motor.
 High instantaneous (burst) data-transfer rates (up to 6Gb/s).
 Perpendicular recording technology.
 State-of-the-art cache and on-the-fly error-correction algorithms.
 Native Command Queuing (NCQ) with command ordering.
 Full-track multiple-sector transfer capability without local processor intervention.
 1000 Gs nonoperating shock and 400 Gs of operating shock.

 SeaTools
 The 3D Defense System™, which includes Drive Defense, Data Defense and Diagnostic Defense,

TM

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

offers the industry’s most comprehensive protection for disk drives.

 Support for S.M.A.R.T. drive monitoring and reporting.
 Support for Read Multiple and Write Multiple commands.
 Worldwide Name (WWN) capability uniquely identifies the drive.

Laptop Thin Self-Encrypting Drive models have the following additional features

 Automatic data encryption/decryption
 Controlled access
 Random number generator
 Drive locking
 16 independent data bands
 Cryptographic erase of user data for a drive that will be repurposed or scrapped
 Authenticated firmware download.

There is no significant performance difference between Self-Encrypting Drive and standard (non-Self-Encrypting Drive) models.

SEAGATE LAPTOP THIN HDD PRODUCT MANUAL, REV. K 2

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 confi guration

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 transition from parallel ATA easy by providing legacy software support. Serial ATA was designed to allow
users to install a Serial ATA host adapter and Serial ATA disk drive in the current system and expect all of the existing applications to work
as normal.

The Serial ATA interface connects each disk 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.

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

NOTE

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 contains a set of registers that shadow the contents of the traditional device registers, 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 International Organization: Serial ATA (Revision 2.6). The specification can be downloaded from

www.serialata.org.

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.

SEAGATE LAPTOP THIN HDD PRODUCT MANUAL, REV. K 3

DRIVE SPECIFICATIONS

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:

The specification summaries listed in the following tables are for quick reference. For details on specification measurement or definition,

refer to the appropriate section of this manual.

Table 1 Drive Specifications Summary

Drive Specification

Formatted capacity

(1)

ST500LT012
ST500LT015
ST500LT025
ST500LT034

500 GB 320 GB 250 GB

ST320LT012
ST320LT015
ST320LT025
ST320LT032

ST250LT012
ST250LT015
ST250LT025
ST250LT028

Guaranteed sectors 976,773,168 625,142,448 488,397,168
Heads 2
Disks 1
Bytes per sector 512 (logical) / 4096 (physical)
Recording density 1875 Kb/in
Track density 375 Ktracks/in avg
Areal density 670 Gb/in2 avg
Spindle speed 5400 RPM
Sustained data transfer rate OD 100 MB/s max
I/O data-transfer rate 600 MB/s max

PIO modes 0–4

ATA data-transfer modes supported

Multiword DMA modes 0–2

Ultra DMA modes 0–6
Cache buffer 16 MB
Height 6.8 +/- 0.2 mm (0.268 +/-.008 in)
Width 69.85 +/- 0.25 mm (2.750 +/- 0.010 in)
Length 100.35 +0.20 / -0.25 mm (3.951 +0.008 / -0.010 in)
Weight (typical) <95 g (0.209 lb)
Average latency 5.6 ms
Startup current (typical) 5V (peak) 1.0 A
Voltage tolerance (including noise) 5V ± 5%
Operating temperature 0° to 60°C
Nonoperating temperature

(Ambient)

Temperature gradient (max)

Relative humidity

20°C per hour max (operating)

35°C per hour max (nonoperating)

–40° to 70°C

5% to 95% (operating)

5% to 95% (nonoperating)

Relative humidity gradient 30% per hour max

SEAGATE LAPTOP THIN HDD PRODUCT MANUAL, REV. K 4

Table 1 Drive Specifications Summary (continued)

DRIVE SPECIFICATIONS

Drive Specification

Wet bulb temperature (max)

ST500LT012
ST500LT015
ST500LT025
ST500LT034

40.0°C max (nonoperating)

ST320LT012
ST320LT015
ST320LT025
ST320LT032

37.7°C max (operating)

Altitude, operating –304.8 m to 3048 m (–1000 ft to 10,000+ ft)
Altitude, nonoperating

(below mean sea level, max)

–304.8 m to 12,192 m (–1000 ft to 40,000+ ft)

Operational Shock 400 Gs at 2 ms max
Non-Operational Shock 1000 Gs at 1 ms max

Vibration, operating

5–200 Hz: 2.0 Gs

201–500 Hz: 1.0 Gs
Vibration, nonoperating 5–500 Hz: 5.0 Gs
Nonrecoverable read errors 1 per 10

Average rate of <55TB/year . The MTBF specification for the drive assumes the I/O workload

Rated workload

does not exceed the average annualized workload rate limit of 55TB/year. Workloads
exceeding the annualized rate may degrade the drive MTBF and impact product reliability.
The average annualized workload rate limit is in units of TB per year , or TB per 8760 power­on hours. Workload rate limit = TB transferred × (8760/recorded power-on hours).

14

bits read

ST250LT012
ST250LT015
ST250LT025
ST250LT028

To determine the warranty for a specific drive, use a web browser to access the fol­lowing web page: http://www.seagate.com/support/warranty-and-replacements/.

Warranty

From this page, click on the “Check to see if the drive is under Warranty” link. The
following are required to be provided: the drive serial number, model number (or
part number) and country of purchase. The system will display the warranty infor­mation for the drive.

Load-unload cycles 600,000 at 25°C, 50% rel. humidity

Supports Hotplug operation per the
Serial ATA Revision 3.2 specification

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

Yes

2.1 Formatted Capacity

Model

500GB model

Formatted Capacity

500 GB 976,773,168

(1)

320GB model
250GB model

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

250 GB 488,397,168

Guaranteed Sectors Bytes per Sector

512 (logical) / 4096 (physical)320 GB 625,142,448

SEAGATE LAPTOP THIN HDD PRODUCT MANUAL, REV. K 5

DRIVE SPECIFICATIONS

2.1.1 LBA mode

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

Refer to Configuring and Mounting the Drive on page 16 (words 60-61 and 100-103) for additional information about 48-bit addressing
support of drives with capacities over 137 GB.

where n is the number of

2.2 Physical organization

Drive model Read/write heads Number of discs

ST500LT012, ST500LT015, ST500LT025 andST500LT034

ST250LT012, ST250LT015, ST250LT025 andST250LT028

2 1ST320LT012, ST320LT015, ST320LT025 andST320LT032

2.3 Recording and Interface Technology

Interface Serial A TA (SAT A)

Recording method Perpendicular
Recording density 1875 Kb/in
Track density 375 ktracks/in avg
Areal density 670 Gb/in
Spindle speed 5400 RPM +/- 0.2%
Sustained data transfer rate 100 MB/s max
I/O data-transfer rate 600 MB/s max

2

avg

2.4 Physical Characteristics

Height 6.8 +/- 0.2 mm (0.268 +/-.008 in)
Width 69.85 +/- 0.25 mm (2.750 +/- 0.010 in)

All models

Length 100.35 +0.20 / -0.25 mm (3.951 +0.008 / -0.010 in)
Typical weight <95 g (0.209 lb)
Cache buffer 16 MB (16,192 KB)

SEAGATE LAPTOP THIN HDD PRODUCT MANUAL, REV. K 6