Seagate Comprehensive Guide to SATA ATA Devices and Specifications
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1.0 Introduction

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

ST31000524ASST3500413AS ST3250312AS

ST3750525ASST3320413AS ST3160316AS

These drives provide the following key features:

•7200 RPM spindle speed.

•High instantaneous (burst) data-transfer rates (up to 600MB per second).

•Perpendicular recording technology provides the drives with increased areal density.

•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.

•Compliant with RoHS requirements in China and Europe.

•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.

•Worldwide Name (WWN) capability uniquely identifies the drive.

1.1About 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 transition from parallel ATA easy by providing legacy software support. Serial ATA was designed to allow you to install a Serial ATA host adapter and Serial ATA disk drive in your current system and expect all of your 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 on separate Serial ATA ports are represented to host software as a Device 0 (master) and

Note 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.

Barracuda SATA Product Manual, Rev. B

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Contents Barracuda Revision Date Description of Change Document Revision HistoryContents Barracuda Sata Product Manual, Rev. B Figures Barracuda Sata Product Manual, Rev. B Seagate Technology Support Services Barracuda Sata Product Manual, Rev. B About the Serial ATA interface IntroductionIntroduction Specification summary tables Drive SpecificationsDrive specifications summary for 500GB and 320 models Drive specifications summary for 500GB and 320 models Drive specifications summary for 250GB and 160GB models Formatted capacity Model Formatted Guaranteed Bytes per sector Capacity SectorsDefault logical geometry LBA modePhysical characteristics Recording and interface technologySeek time Power consumption Power specificationsStart/stop times 750GB models 500, 320, 250 and 160GB modelsVoltage tolerance Conducted noisePower modes Heads Spindle Buffer Power-management modesTemperature gradient Environmental specifications Ambient temperatureHumidity AltitudeVibration AcousticsTest for Prominent Discrete Tones PDTs Electromagnetic immunity ReliabilityTest Description Performance Reference Level Standard Agency certification Safety certification WarrantyElectromagnetic compatibility FCC verificationEnvironmental protection Corrosive environment Handling and static-discharge precautions Configuring the driveSerial ATA cables and connectors Attaching Sata cabling Drive mountingMounting dimensions 1000 and 750GB models Mounting dimensions 500, 320, 250 and 160GB models Segment Pin Function Definition Serial ATA Sata InterfaceCommand name Command code in hex Supported ATA commandsE7H C6H Word Description Value Identify Device commandXx07H Bit Word Xx3FHBit Word Set Features command Code in features register A.R.T. command 3 S.M.A.R.T. commandsBarracuda Sata Product Manual, Rev. B Serial ATA Sata Interface Barracuda Sata Product Manual, Rev. B IndexBarracuda Sata Product Manual, Rev. B Barracuda Sata Product Manual, Rev. B Page Page ASIA/PACIFIC Seagate Technology LLC

ST3750525AS, ST3320413AS, ST4000DM000, ST3250312AS, ST31000524AS specifications

Seagate is a renowned name in the field of data storage, known for its innovative hard disk drives (HDDs) that cater to various needs. Among its extensive product lineup, the Seagate ST3500413AS, ST3160316AS, SGTST3000DM0011CH166, ST31000524AS, and ST3250312AS stand out due to their unique features and performance characteristics.

The Seagate ST3500413AS is a 500GB SATA drive exhibiting a 7200 RPM spin speed, which allows for quick data access and file transfers. It features a 16MB cache, enhancing performance by allowing frequently accessed data to be stored in a readily available state. This drive is particularly suitable for users with moderate storage needs, such as home offices and casual gaming.

On the other hand, the ST3160316AS offers a larger 1.5TB capacity. Like the ST3500413AS, it operates at 7200 RPM and comes equipped with a 32MB cache that boosts read/write speeds. This HDD is ideal for users who require additional space for media files, backups, or extensive applications.

The SGTST3000DM0011CH166 is part of Seagate's Barracuda series, renowned for its balance of performance and capacity. This 3TB drive operates on SATA III at 7200 RPM and features a 64MB cache, making it suitable for high-demand applications such as gaming rigs and multimedia servers. Its Storage capacities and speed allow users to store a significant amount of data without compromising performance.

The ST31000524AS is another prominent Seagate model that offers 1TB of storage with a similar 7200 RPM speed. This HDD is characterized by its reliability and efficiency, making it perfect for systems requiring robust data storage solutions. The 32MB cache further aids in data access speed, making it suitable for task-intensive applications.

Lastly, the ST3250312AS provides a 2TB capacity and mirrors the 7200 RPM spin speed found in the other models. With a 32MB cache, it is designed for home and small business use, offering a balance of performance and capacity. This HDD is particularly appealing for users needing to store large files without compromising on data retrieval times.

In summary, Seagate's lineup, including the ST3500413AS, ST3160316AS, SGTST3000DM0011CH166, ST31000524AS, and ST3250312AS, presents a range of storage solutions ideal for different user needs. From casual users to demanding applications, these drives utilize advanced technologies to ensure reliability, speed, and adequate storage capacity for a wide array of digital data.
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