Seagate ST910021AS, ST980825AS, ST96023AS Formatted capacity, Default logical geometry, LBA mode

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Table 1:	Drive specifications

Drive specification		ST910021AS	ST980825AS	ST96023AS	ST94015AS

Supports Hotplug operation per SATA II spec-		Yes
ification

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

**Typical notebooks will pull power to the drive when entering S3 and S4; while in the S3 and S4 states, drive sleep and drive standby modes will not contribute to battery power consumption.

2.2Formatted capacity

Model	Formatted capacity	Guaranteed sectors	Bytes per sector

ST910021AS	100 Gbytes	195,371,568	512

ST980825AS	80 Gbytes	156,301,488	512

ST96023AS	60 Gbytes	117,210,240	512

ST94015AS	40 Gbytes	78,140,160	512

2.2.1LBA 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 48- bit addressing support of drives with capacities over 137 Gbytes.

2.3Default logical geometry

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.

Momentus 7200.1 SATA Product Manual, Rev. B

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Contents ST910021AS ST980825AS ST96023AS ST94015AS Momentus 7200.1 SataPage Contents Momentus 7200.1 Sata Product Manual, Rev. B List of Figures Page Introduction About the Serial ATA Sata interface Specification summary table Drive specificationsTrack-to-track seek time msec typical Cylinders Read/write heads Sectors per track 16,383 Default logical geometryLBA mode Formatted capacityRecording and interface technology Physical characteristicsDrive specification Physical organizationTypical seek times msec Read Write Seek timeStart/stop times Typical seek timesPower specifications Additional details Typical current profilesDeferred spinup Idle mode Power-management modesPower management modes Active modeEnvironmental specifications Vibration ShockOperating shock Nonoperating shockRadio frequency environments AcousticsElectromagnetic immunity Drive level acousticsAgency certification Safety certificationMeasurement type Specification ReliabilityFCC verification Korean RRLAustralian C-Tick N176 European Union Restriction of Hazardous Substances RoHS Environmental protectionCorrosive environment Momentus 7200.1 Sata Product Manual, Rev. B Handling and static-discharge precautions Configuring and mounting the driveSerial ATA cables and connectors Configuring the driveDrive mounting Mounting dimensions-top, side and end viewMomentus 7200.1 Sata Product Manual, Rev. B Segment Pin Function Definition Serial ATA connector pin definitionsSignal Serial ATA Sata interfaceP10 Ground 2nd mate P11 Reserved Pin Function DefinitionCommand name Command code in hex ATA-standard commands Supported ATA commandsATA-standard power-management commands Command name Command code in hexMomentus 7200.1 Sata Product Manual, Rev. B Word Description Value Identify Device commandXx07H Bit Word Description if bit is set to Bit WordSet Features command values Set Features commandCode in features register A.R.T. command 3 S.M.A.R.T. commandsA.R.T. commands Technical Support Seagate Technology support servicesInternet Presales SupportData Recovery Services Call Center Toll-free Direct dial Warranty ServiceData Recovery Services Authorized Service Centers Index ITE Sata Momentus 7200.1 Sata Product Manual, Rev. B Page Seagate Technology LLC