Seagate ST380013AS, ST3120827AS, ST3120026AS, ST3120022AS, ST310005N1A1ASRK, ST3160023AS Introduction

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1.0Introduction

This manual describes the functional, mechanical and interface specifications for the following Seagate Barracuda® 7200.7 Serial ATA model drives:

Table 1:	Barracuda 7200.7 Serial ATA models

	OEM models		Distribution models	Distribution models
	OEM models		not supporting NCQ	supporting NCQ
			not supporting NCQ	supporting NCQ

ST3200822AS		ST380013AS [1]	ST3200822AS	ST3160827AS
ST3160023AS [1]		ST380011AS [1]	ST3160023AS	ST3120827AS

ST3160021AS [1]		ST340111AS [1]	ST3120026AS	ST380817AS

ST3120026AS [1]		ST340014AS [1]	ST380013AS
ST3120022AS [1]

[1]OEM model that may support NCQ

These drives provide the following key features:

•7,200 RPM spindle speed

•8 Mbyte buffer (ST3200822AS, ST3160827AS, ST3160023AS, ST3120827AS, ST3120026AS, ST380817AS, ST380013AS and ST340111AS models)

•2 Mbyte buffer (ST3160021AS, ST3120022AS, ST380011AS, and ST340014AS models)

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

•Giant magnetoresistive (GMR) recording heads and EPRML technology, provide the drives with increased areal density.

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

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

•Quiet operation.

•350 Gs nonoperating shock.

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

•The 3D Defense System™, which includes Drive Defense, Data Defense and Diagnostic Defense, offers the industry’s most comprehensive protection for disc drives.

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

•Support for Read Multiple and Write Multiple commands.

•Native Command Queing enabled on some models.

Barracuda 7200.7 Serial ATA Product Manual, Rev. N

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Contents Barracuda 7200.7 Serial ATA Page Barracuda 7200.7 Serial ATA Page Contents Barracuda 7200.7 Serial ATA Product Manual, Rev. N List of Figures Page Introduction About the Serial ATA interface Native Command QueuingSpecification summary table Drive specificationsSystem will display the warranty information for your drive LBA mode Default logical geometryFormatted capacity Cylinders Read/write heads Sectors per track 16,383Drive specification Physical characteristicsPhysical organization Recording and interface technologyPower specifications Seek timeStart/stop times Operating power and current Idle mode powerStandby mode Deferred spinup Typical current profilesAdditional details Conducted noiseVoltage tolerance Environmental specifications Wet bulb temperature Temperature gradientHumidity Relative humidity AltitudeVibration AcousticsOperating vibration Nonoperating vibrationReliability Electromagnetic immunityRadio frequency environments Test Description Performance level Reference standardAgency certification Safety certificationElectromagnetic compatibility Korean RRLFCC verification Australian C-Tick N176Environmental protection Corrosive environmentEuropean Union Restriction of Hazardous Substances RoHS Barracuda 7200.7 Serial ATA Product Manual, Rev. N Handling and static-discharge precautions Configuring and mounting the driveSerial ATA cables and connectors Configuring the driveDrive mounting Mounting dimensions-top, side and end view Hot-Plug compatibility Serial ATA Sata interfaceSerial ATA connector pin definitions Serial ATA device plug connector pin definitionsSignal Pin Function DefinitionPage Command name Command code in hex ATA-standard commands Supported ATA commandsCommand name Command code in hex ATA-standard power-management commandsATA-standard security commands Word Description Value Identify Device commandXxxxH Fffeh Bit Word Description if bit is set to Bit WordSet Features command values Set Features command3 S.M.A.R.T. commands M.A.R.T. commandsCode in features register A.R.T. command Barracuda 7200.7 Serial ATA Product Manual, Rev. N Internet MySeagate Reseller.seagate.com Presales SupportTechnical Support Warranty Service Data Recovery Services Authorized Service CentersData Recovery Services FAX services-All Europe toll call Call center Presales and Technical Support Warranty ServiceToll-free support numbers Asia/Pacific support services Publication feedback survey Barracuda 7200.7 Serial ATA Product Manual, Rev. N Index Mtbf RPM RRL Page Page Seagate Technology LLC