Seagate 7200.11 Formatted capacity, Default logical geometry, Recording and interface technology

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2.1Formatted capacity

	Model	Formatted	Guaranteed	Bytes per sector
	Model	capacity*	sectors	Bytes per sector
		capacity*	sectors

	ST31000333AS	1000 Gbytes	1,953,525,168	512

	ST3640323AS	640 Gbytes	1,250,284,896	512

	ST3320613AS	320 Gbytes	625,142,448	512
	ST3320813AS	320 Gbytes	625,142,448	512
	ST3320813AS
	ST3160813AS	160 Gbytes	312,581,808	512

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

2.1.1LBA 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.

2.2Default 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.

2.3Recording and interface technology

	ST31000333AS		ST3640323AS	ST3320613AS	ST3160813AS
	ST31000333AS		ST3640323AS	ST3320813AS	ST3160813AS
				ST3320813AS

Interface	Serial ATA (SATA)

Recording method	Perpendicular

Recording density (kbits/inch max)	1300		1250

Track density (ktracks/inch avg)	182

Areal density (Gbits/inch2 avg)	228		219
Spindle speed (RPM)	7,200 ± 0.2%

Internal data transfer rate (Mbits/sec max)	1520		1460

Sustained data transfer rate (Mbytes/sec max)	120		115

I/O data-transfer rate (Mbytes/sec max)	300

8	Barracuda 7200.11 Serial ATA Product Manual, Rev. B

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Contents Barracuda 7200.11 Serial ATA Revision history Revision Date Sheets affected or commentsContents Barracuda 7200.11 Serial ATA Product Manual, Rev. B List of Figures Page Introduction About the Serial ATA interface Drive specifications Drive specifications summary for 1000 and 640 Gbyte models Will display the warranty information for your drive Drive specifications summary for 320 and 160 Gbyte models Barracuda 7200.11 Serial ATA Product Manual, Rev. B Formatted capacity Default logical geometryLBA mode Recording and interface technologyTypical seek times msec Read Write Physical characteristicsSeek time Power specifications Start/stop timesVoltage tolerance DC power requirementsConducted noise Idle mode Power-management modesActive mode Sleep modeEnvironmental specifications Vibration Nonoperating shock 1000 & 640 GB models320 & 160 GB models Operating vibrationFluid Dynamic Bearing FDB motor acoustics AcousticsElectromagnetic immunity Test for Prominent Discrete Tones PDTsAgency certification Safety certificationReliability Electromagnetic compatibilityFCC verification Korean RRLAustralian C-Tick N176 China Restriction of Hazardous Substances RoHS Directive Environmental protectionCorrosive environment Configuring and mounting the drive Handling and static-discharge precautionsConfiguring the drive Serial ATA cables and connectorsMounting dimensions 1000 & 640 GB models Drive mountingMounting dimensions 320 & 160 GB models Serial ATA Sata interface Hot-Plug compatibilitySignal Serial ATA device plug connector pin definitionsSerial ATA connector pin definitions Pin Function DefinitionCommand name Command code in hex Supported ATA commandsSupported ATA commands F4H Identify Device command Word Description ValueXx07H Description if bit is set to Bit Word Bit WordWord Set Features command Set Features command valuesCode in features register A.R.T. command 3 S.M.A.R.T. commandsM.A.R.T. commands Presales Support Seagate Technology support servicesInternet Technical SupportData Recovery Services Call Center Toll-free Direct dial Warranty ServiceData Recovery Services Authorized Service Centers Index ITE Page Barracuda 7200.11 Serial ATA Product Manual, Rev. B Page Disc Drive, Scotts Valley, California 95066-4544, USA