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Seagate ST98823AS Physical organization, Recording and interface technology, Drive specification

Models: ST93811AS ST94813AS ST9100824AS ST96812AS ST9120821AS ST98823AS

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2.4Physical organization

Drive model	Read/write heads	Number of discs

ST9120821AS	4	2

ST9100824AS	4	2

ST98823AS	3	2

ST96812AS	2	1

ST94813AS	2	1

ST93811AS	1	1

2.5Recording and interface technology

Interface	Serial ATA (SATA)

Recording method	16/17 EPRML

Recording density BPI (bits/inch max)	778k

Track density TPI (tracks/inch max)	126k

Areal density (Mbits/inch2 max)	98.2
Spindle speed (RPM) (± 0.2%)	5,400

Maximum Internal transfer rate (Mbytes/sec)	42

I/O data-transfer rate (Mbytes/sec max)	150 (SATA 1.0)

Interleave	1:1

Cache buffer	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	+/-0.0098

Length	(mm)	100.5	+/-1.6
	(inches)	3.945	+/-0.0098

Typical weight	(grams)	100
	(pounds)	0.22

6	Momentus 5400.2 SATA Product Manual, Rev. C

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Seagate ST98823AS Physical organization, Recording and interface technology, Physical characteristics, Drive specification

Contents

Momentus 5400.2 Sata Page Contents Momentus 5400.2 Sata Product Manual, Rev. C List of Figures Page Introduction Momentus 5400.2 Sata disc drive About the Serial ATA interface Drive specifications Specification summary table Warranty information for your drive Default logical geometry LBA modeFormatted capacity Cylinders Read/write heads Sectors per track 16,383 Physical characteristics Drive specificationPhysical organization Recording and interface technology Seek time Start/stop timesTypical seek times Typical seek times msec Read Write Power specifications Deferred spinup Additional details Power-management modes Power management modesActive mode Idle mode Environmental specifications Shock Operating shockNonoperating shock Vibration Acoustics Electromagnetic immunityDrive level acoustics Radio frequency environments Safety certification Measurement type SpecificationReliability Agency certification Korean RRL Australian C-Tick N176FCC verification Environmental protection Corrosive environmentEuropean Union Restriction of Hazardous Substances RoHS Configuring and mounting the drive Handling and static-discharge precautions Configuring the drive Serial ATA cables and connectors Mounting dimensions-top, side and end view Drive mounting Momentus 5400.2 Sata Product Manual, Rev. C Serial ATA connector pin definitions SignalSerial ATA Sata interface Segment Pin Function Definition Pin Function Definition P10 Ground 2nd mate P11 Reserved Supported ATA commands Command name Command code in hex ATA-standard commands Command name Command code in hex ATA-standard security commands Momentus 5400.2 Sata Product Manual, Rev. C Identify Device command Word Description Value Xx07H Description if bit is set to Bit Word Bit Word Set Features command Set Features command values 3 S.M.A.R.T. commands A.R.T. commandsCode in features register A.R.T. command Seagate Technology support services InternetPresales Support Technical Support Warranty Service Data Recovery Services Authorized Service CentersData Recovery Services Call Center Toll-free Direct dial Index ITE Sata Momentus 5400.2 Sata Product Manual, Rev. C Page Seagate Technology LLC