Seagate ST9160823ASG, ST980813ASG manual Physical organization, Recording and interface technology

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2.4Physical organization

	Drive model	Read/write heads	Number of discs

	ST9200420AS and ST9200420ASG	4

	ST9160823AS and ST9160823ASG		2
	ST9160823AS and ST9160823ASG

	ST9120823AS	3
	ST9120823AS

	ST9100821AS
	ST9100821AS

	ST980813AS and ST980813ASG	2	1

2.5Recording and interface technology

	200 GB models	160 - 80 GB models

Interface	Serial ATA (SATA)

Recording density BPI (bits/inch max)	1,014,000	853,000

Track density TPI (tracks/inch max)	162,600	155,000

Areal density (Gbits/inch2 max)	169.4	131
Spindle speed (RPM) (± 0.2%)	7,200

Maximum Internal transfer rate (Mbits/sec)	850	711

Sustained transfer rate OD (Mbytes/sec max)	69.5	59

I/O data-transfer rate (Mbytes/sec max)	300 (can also be configured for 150MB/s operation)

Interleave	1:1

Cache buffer	16 Mbytes (16,384 kbytes)	8 Mbytes (8,192 kbytes)

2.6Physical characteristics

Drive specification

Height	(mm)	9.5 +/-0.2
	(inches)	0.374	+/-0.0078

Width	(mm)	69.85	+/-0.25
	(inches)	2.75	+/-0.00984

Length	(mm)	100.5+/- 0.25
	(inches)	3.957	+/- 0.00984

Maximum weight	(grams)	115 grams
	(pounds)	(0.254 lb)

6	Momentus 7200.2 SATA Product Manual, Rev. E

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Contents Momentus 7200.2 Sata Page Contents Momentus 7200.2 Sata Product Manual, Rev. E List of Figures Page Introduction About the Serial ATA Sata interface Drive specifications Specification summary tableWill display the warranty information for your drive Default logical geometry LBA modeFormatted capacity Cylinders Read/write heads Sectors per track 16,383Physical characteristics Physical organizationRecording and interface technology Seek time Start/stop timesTypical seek times Typical seek times msec Read WritePower specifications Typical current profile Conducted noiseVoltage tolerance Power-management modes Power management modesActive mode Idle modeEnvironmental specifications Shock Operating shockNonoperating shock VibrationAcoustics Electromagnetic immunityDrive level acoustics Radio frequency environmentsFree Fall Protection feature Safety certificationReliability Agency certificationKorean RRL Australian C-Tick N176FCC verification Environmental protection Corrosive environment超出Page Momentus 7200.2 Sata Product Manual, Rev. E Configuring and mounting the drive Handling and static-discharge precautionsConfiguring the drive Serial ATA cables and connectorsDrive dimensions Drive mountingMomentus 7200.2 Sata Product Manual, Rev. E Serial ATA connector pin definitions Serial ATA Sata interfaceSegment Pin Function Definition Pin Function Definition P10 Ground 2nd mate P11 ReservedSupported ATA commands Command name Command code in hex ATA-standard commandsCommand name Command code in hex ATA-standard power-management commandsATA-standard security commands Identify Device command Word Description ValueXxxxH Description if bit is set to Bit Word Bit WordSet Features command Set Features command values3 S.M.A.R.T. commands A.R.T. commandsCode in features register A.R.T. command Momentus 7200.2 Sata Product Manual, Rev. E Seagate Technology support services InternetPresales Support Technical SupportWarranty Service Data Recovery Services Authorized Service CentersData Recovery Services Call Center Toll-free Direct dial Index ITE Sata Momentus 7200.2 Sata Product Manual, Rev. E Page Seagate Technology LLC