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Seagate ST98823AS Momentus 5400.2 SATA Product Manual - Page 12

Physical organization, Recording and interface technology, Physical characteristics - ata drive

UPC - 000000098823

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2.4 Physical organization Drive model ST9120821AS ST9100824AS ST98823AS ST96812AS ST94813AS ST93811AS Read/write heads 4 4 3 2 2 1 Number of discs 2 2 2 1 1 1 2.5 Recording and interface technology Interface Recording method Recording density BPI (bits/inch max) Track density TPI (tracks/inch max) Areal density (Mbits/inch2 max) Spindle speed (RPM) (± 0.2%) Maximum Internal transfer rate (Mbytes/sec) I/O data-transfer rate (Mbytes/sec max) Interleave Cache buffer Serial ATA (SATA) 16/17 EPRML 778k 126k 98.2 5,400 42 150 (SATA 1.0) 1:1 8 Mbytes (8,192 kbytes) 2.6 Physical characteristics Drive specification Height (mm) (inches) Width (mm) (inches) Length (mm) (inches) Typical weight (grams) (pounds) 9.5 +/-0.2 0.374 +/-0.0078 69.85 +/-0.25 2.75 +/-0.0098 100.5 +/-1.6 3.945 +/-0.0098 100 0.22 6 Momentus 5400.2 SATA Product Manual, Rev. C

Section	Page
1.0 Introduction	7
1.1 About the Serial ATA interface	8
2.0 Drive specifications	9
2.1 Specification summary table	9
2.2 Formatted capacity	11
2.2.1 LBA mode	11
2.3 Default logical geometry	11
2.4 Physical organization	12
2.5 Recording and interface technology	12
2.6 Physical characteristics	12
2.7 Seek time	13
2.8 Start/stop times	13
2.9 Power specifications	14
2.9.1 Power consumption	14
2.9.2 Deferred spinup	15
2.9.3 Conducted noise	16
2.9.4 Voltage tolerance	16
2.9.5 Power-management modes	16
2.10 Environmental specifications	17
2.10.1 Ambient temperature	17
2.10.2 Temperature gradient	17
2.10.3 Humidity	17
2.10.3.1 Relative humidity	17
2.10.3.2 Wet bulb temperature	17
2.10.4 Altitude	17
2.10.5 Shock	18
2.10.5.1 Operating shock	18
2.10.5.2 Nonoperating shock	18
2.10.6 Vibration	18
2.10.6.1 Operating vibration	18
2.10.6.2 Nonoperating vibration	18
2.11 Acoustics	19
2.12 Electromagnetic immunity	19
2.13 Reliability	20
2.14 Agency certification	20
2.14.1 Safety certification	20
2.14.2 Electromagnetic compatibility	20
2.14.3 FCC verification	21
2.15 Environmental protection	22
2.15.1 European Union Restriction of Hazardous Substances (RoHS)	22
2.16 Corrosive environment	22
3.0 Configuring and mounting the drive	23
3.1 Handling and static-discharge precautions	23
3.2 Configuring the drive	24
3.3 Serial ATA cables and connectors	24
3.4 Drive mounting	25
4.0 Serial ATA (SATA) interface	27
4.1 Hot-Plug compatibility	27
4.2 Serial ATA device plug connector pin definitions	27
4.3 Supported ATA commands	29
4.3.1 Identify Device command	32
4.3.2 Set Features command	35
4.3.3 S.M.A.R.T. commands	36
5.0 Seagate Technology support services	37
A	39
B	39
C	39
D	39
E	39
F	39
G	39
H	40
I	40
K	40
L	40
M	40
N	40
O	40
P	40
Q	40
R	40
S	41
T	41
U	41
V	41