Seagate ST3750840ACE manual Formatted capacity, Default logical geometry, LBA mode

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2.2Formatted capacity

	Formatted	Guaranteed
Model	capacity*	sectors	Bytes per sector

ST3750840ACE	750 Gbytes	1,465,149,168	512

ST3500830ACE	500 Gbytes	976,773,168	512

ST3400820ACE	400 Gbytes	781,422,768	512

ST3320820ACE	320 Gbytes	625,142,448	512

ST3300820ACE	300 Gbytes	586,072,368	512

ST3250820ACE	250 Gbytes	488,397,168	512

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

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 4.1.2, "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

8	DB35.3 Series PATA Product Manual, Rev. B

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Contents DB35.3 Series Pata Page Contents DB35.3 Series Pata Product Manual, Rev. B List of Figures DB35.3 Series Pata Product Manual, Rev. B Introduction DB35.3 Series Pata Product Manual, Rev. B Drive specifications Specification summary tableDrive specification ST3750840ACE ST3500830ACE ST3400820ACE DB35.3 Series Pata Product Manual, Rev. B Drive specification ST3320820ACE ST3300820ACE ST3250820ACE DB35.3 Series Pata Product Manual, Rev. B Formatted capacity Default logical geometryLBA mode Cylinders Read/write heads Sectors per track 16,383Recording and interface technology Physical characteristicsDrive specification 750GB 500GB 400GB 320GB 300GB 250GBStart/stop times Power specificationsSeek time Standby mode DC power requirementsTypical current profile Conducted noiseIdle mode Power-management modesActive mode Sleep modeEnvironmental specifications Nonoperating shock Disc models ShockOperating shock 4 Disc modelsIdle CE seek profile AcousticsFluid Dynamic Bearing FDB motor acoustics Reliability Safety certificationElectromagnetic immunity Agency certificationAustralian C-Tick N176 Electromagnetic compatibilityKorean RRL FCC verificationEuropean Union Restriction of Hazardous Substances RoHS Environmental protectionCorrosive environment DB35.3 Series Pata Product Manual, Rev. B Configuring and mounting the drive Handling and static discharge precautionsBreather filter hole precautions Breather filter hole locationDrive as master with a non-ATA-compatible slave Jumper settingsMaster/slave configuration Cable-select optionDrive mounting Ultra ATA/100 cableMounting dimensions-top, side and end view DB35.3 Series Pata Product Manual, Rev. B ATA interface ATA interface signals and connector pinsPins and supported ATA signals Supported ATA commands Command name Command code in hexF4H Identify Device command Word Description ValueXx07H Description if bit is set to Bit Word Bit WordSet Features command 0CH4 S.M.A.R.T. commands Code in features Register A.R.T. commandPresales Support Seagate Technology support servicesInternet Technical SupportData Recovery Services Call Center Toll-free Direct dial Warranty ServiceData Recovery Services Authorized Service Centers Index Page TMR DB35.3 Series Pata Product Manual, Rev. B Page Seagate Technology LLC

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