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Seagate STM380215AS DiamondMax 21 SATA Product Manual - Page 23

Recording and interface technology

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2.4 Recording and interface technology Interface Recording method Recording density (kbits/inch max) Track density (ktracks/inch avg) Areal density (Gbits/inch2 avg) Spindle speed (RPM) Internal data transfer rate (Mbits/sec max) Sustained data transfer rate (Mbytes/sec max) I/O data-transfer rate (Mbytes/sec max) STM3320620AS STM3500630AS STM3320820AS Serial ATA (SATA) Perpendicular 813 781 145 114.4 7,200 ± 0.2% 1,030 STM3250824AS 790.1 124.5 97.96 867.2 STM3250820AS 813 145 114.4 1,030 72 76.6 72 300 Interface Recording method Recording density (kbits/inch max) Track density (ktracks/inch avg) Areal density (Gbits/inch2 avg) Spindle speed (RPM) Internal data transfer rate (Mbits/sec max) Sustained data transfer rate (Mbytes/sec max) I/O data-transfer rate (Mbytes/sec max) STM3160815AS, STM3160215AS, STM3250310AS STM380815AS, STM380215AS and STM340215AS Serial ATA (SATA) Perpendicular 1,110 824 160 137.259 176 101 7,200 ± 0.2% 1,303 930 110 78 300 DiamondMax 21 Serial ATA Product Manual, Rev. C 17

Section	Page
1.0 Introduction	7
1.1 About the Serial ATA interface	8
2.0 Drive specifications	9
2.1 Specification summary tables	9
2.2 Formatted capacity	22
2.2.1 LBA mode	22
2.3 Default logical geometry	22
2.4 Recording and interface technology	23
2.5 Physical characteristics	24
2.6 Seek time	25
2.7 Start/stop times	25
2.8 Power specifications	25
2.8.1 Power consumption	26
2.8.1.1 Typical current profiles	27
2.8.2 Conducted noise	27
2.8.3 Voltage tolerance	27
2.8.4 Power-management modes	28
2.9 Environmental specifications	29
2.9.1 Ambient temperature	29
2.9.2 Temperature gradient	29
2.9.3 Humidity	29
2.9.3.1 Relative humidity	29
2.9.3.2 Wet bulb temperature	29
2.9.4 Altitude	29
2.9.5 Shock	29
2.9.5.1 Operating shock	29
2.9.5.2 Nonoperating shock	30
2.9.6 Vibration	30
2.9.6.1 Operating vibration	30
2.9.6.2 Nonoperating vibration	30
2.10 Acoustics	31
2.11 Electromagnetic immunity	31
2.12 Reliability	32
2.12.1 Annualized Failure Rate (AFR) and Mean Time Between Failures (MTBF)	32
2.13 Agency certification	32
2.13.1 Safety certification	32
2.13.2 Electromagnetic compatibility	32
2.13.3 FCC verification	33
2.14 Environmental protection	34
2.14.1 European Union Restriction of Hazardous Substances (RoHS) Directive	34
2.14.2 China Restriction of Hazardous Substances (RoHS) Directive	34
2.15 Corrosive environment	34
3.0 Configuring and mounting the drive	35
3.1 Handling and static-discharge precautions	35
3.2 Configuring the drive	36
3.3 Serial ATA cables and connectors	36
3.4 Drive mounting	37
4.0 Serial ATA (SATA) interface	39
4.1 Hot-Plug compatibility	39
4.2 Serial ATA device plug connector pin definitions	40
4.3 Supported ATA commands	41
4.3.1 Identify Device command	43
4.3.2 Set Features command	47
4.3.3 S.M.A.R.T. commands	48
5.0 Maxtor support services	49
Index	51
A	51
B	51
C	51
D	51
E	51
F	51
G	51
H	51
I	52
K	52
L	52
M	52
N	52
O	52
P	52
Q	52
R	52
S	53
T	53
U	53
V	53