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Seagate ST3500312CS Pipeline HD Series SATA Product Manual - Page 16

Power specifications

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2.8 Power specifications The drive receives DC power (+5V or +12V) through a native SATA power connector. See Figure 3 on page 20. 2.8.1 Power consumption Power requirements for the drives are listed in the table on page 9. Typical power measurements are based on an average of drives tested, under nominal conditions, using 5.0V and 12.0V input voltage at 25°C ambient temperature. • Spinup power Spinup power is measured from the time of power-on to the time that the drive spindle reaches operating speed. • Idle mode power Idle mode power is measured with the drive up to speed, with servo electronics active and with the heads in a random track location. • Operating (CE seek profile) Operating power is measured by simulating a typical PVR operating environment, using a 50% write 50% read algorithm. • Standby mode During Standby mode, the drive accepts commands, but the drive is not spinning, and the servo and read/ write electronics are in power-down mode. Table 3: DC power requirements 500GB Power dissipation Avg (watts 25° C) Avg 5V typ amps Avg 12V typ amps Spinup - - 2.0 (peak) Idle* 4.28 0.166 0.233 Operating 5.026 0.353 0.248 Standby 0.728 0.088 0.020 Sleep 0.726 0.087 0.020 *During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and power to operational levels. 320GB and 160GB Power dissipation Spinup Idle* Operating Standby Sleep Avg (watts 25° C) - 3.03 4.711 0.577 0.574 Avg 5V typ amps - 0.174 0.311 0.067 0.066 Avg 12V typ amps

Section	Page
1.0 Introduction 1	3
1.1 About the Serial ATA interface 2	3
2.0 Drive specifications 3	3
2.1 Specification summary tables 3	3
2.2 Formatted capacity 8	3
2.2.1 LBA mode 8	3
2.3 Default logical geometry 8	3
2.4 Recording and interface technology 8	3
2.5 Physical characteristics 9	3
2.6 Seek time 9	3
2.7 Start/stop times 9	3
2.8 Power specifications 10	3
2.8.1 Power consumption 10	3
2.8.2 Conducted noise 11	3
2.8.3 Voltage tolerance 11	3
2.8.4 Power-management modes 12	3
2.9 Environmental specifications 13	3
2.9.1 Drive case temperature 13	3
2.9.2 Temperature gradient 13	3
2.9.3 Humidity 13	3
2.9.4 Altitude 13	3
2.9.5 Shock 14	3
2.9.6 Vibration 14	3
2.10 Acoustics emissions 15	3
2.11 Electromagnetic immunity 15	3
2.12 Reliability 16	3
2.12.1 Annualized Failure Rate (AFR) 16	3
2.13 Agency certification 16	3
2.13.1 Safety certification 16	3
2.13.2 Electromagnetic compatibility 16	3
2.13.3 FCC verification 17	3
2.14 Environmental protection 18	3
2.14.1 European Union Restriction of Hazardous Substances (RoHS) Directive 18	3
2.15 Corrosive environment 18	3
3.0 Configuring and mounting the drive 19	3
3.1 Handling and static-discharge precautions 19	3
3.2 Configuring the drive 20	3
3.3 Serial ATA cables and connectors 20	3
3.4 Drive mounting 21	3
4.0 Serial ATA (SATA) interface 23	3
4.1 Hot-Plug compatibility 23	3
4.2 Serial ATA device plug connector pin definitions 24	3
4.3 Supported ATA commands 25	3
4.3.1 Identify Device command 27	3
4.3.2 Set Features command 31	3
4.3.3 S.M.A.R.T. commands 32	3
5.0 Seagate Technology support services 33	3
Figure 1. Typical 12V startup and operation current profile 11	5
Figure 2. Serial ATA connectors 20	5
Figure 3. Attaching SATA cabling 20	5
Figure 4. Mounting dimensions (for 500 GB models) 21	5
Figure 5. Mounting dimensions (for 320 and 160 GB models) 22	5
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	14
2.2.1 LBA mode	14
2.3 Default logical geometry	14
2.4 Recording and interface technology	14
2.5 Physical characteristics	15
2.6 Seek time	15
2.7 Start/stop times	15
2.8 Power specifications	16
2.8.1 Power consumption	16
2.8.1.1 Typical current profiles	17
2.8.2 Conducted noise	17
2.8.3 Voltage tolerance	17
2.8.4 Power-management modes	18
2.9 Environmental specifications	19
2.9.1 Drive case temperature	19
2.9.2 Temperature gradient	19
2.9.3 Humidity	19
2.9.3.1 Relative humidity	19
2.9.3.2 Wet bulb temperature	19
2.9.4 Altitude	19
2.9.5 Shock	20
2.9.5.1 Operating shock	20
2.9.5.2 Nonoperating shock	20
2.9.6 Vibration	20
2.9.6.1 Operating vibration	20
2.9.6.2 Nonoperating vibration	20
2.10 Acoustics emissions	21
2.11 Electromagnetic immunity	21
2.12 Reliability	22
2.12.1 Annualized Failure Rate (AFR)	22
2.13 Agency certification	22
2.13.1 Safety certification	22
2.13.2 Electromagnetic compatibility	22
2.13.3 FCC verification	23
2.14 Environmental protection	24
2.14.1 European Union Restriction of Hazardous Substances (RoHS) Directive	24
2.15 Corrosive environment	24
3.0 Configuring and mounting the drive	25
3.1 Handling and static-discharge precautions	25
3.2 Configuring the drive	26
3.3 Serial ATA cables and connectors	26
3.4 Drive mounting	27
4.0 Serial ATA (SATA) interface	29
4.1 Hot-Plug compatibility	29
4.2 Serial ATA device plug connector pin definitions	30
4.3 Supported ATA commands	31
4.3.1 Identify Device command	33
4.3.2 Set Features command	37
4.3.3 S.M.A.R.T. commands	38
5.0 Seagate Technology support services	39
Index	41
A	41
B	41
C	41
D	41
E	41
F	41
G	41
H	41
I	41
K	42
L	42
M	42
N	42
O	42
P	42
Q	42
R	42
S	42
T	43
U	43
V	43