Seagate ST340815AS, ST3120215AS, ST3120815AS, ST3160815AS, ST3160215AS manual Power specifications

Page 36

2.8Power specifications

The drive receives DC power (+5V or +12V) through a native SATA power connector. See Figure 4 on page 42.

2.8.1Power 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.

• Seek mode

During seek mode, the read/write actuator arm moves toward a specific position on the disc surface and does not execute a read or write operation. Servo electronics are active. Seek mode power represents the worst-case power consumption, using only random seeks with read or write latency time. This mode is not typical and is provided for worst-case information.

• Read/write power and current

Read/write power is measured with the heads on track, based on a 16-sector write followed by a 32-msec delay, then a 16-sector read followed by a 32-msec delay.

• Operating power and current

Operating power is measured using 40 percent random seeks, 40 percent read/write mode (1 write for each 10 reads) and 20 percent drive idle mode.

• 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.

• 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 12: DC power requirements

Power dissipation (4-disc values shown)

Avg (watts 25° C)

Avg 5V typ amps

Avg 12V typ amps

 

 

 

 

Spinup

—

—

2.8 (peak)

 

 

 

 

Idle*

9.30

0.611

0.520

 

 

 

 

Idle* (with offline activity)

10.40

0.719

0.567

 

 

 

 

Operating (40% r/w, 40% seek, 20% inop.)

13.00

0.772

0.762

 

 

 

 

Seeking (random, 20% idle)

12.60

0.613

0.795

 

 

 

 

Standby

0.80

0.106

0.023

 

 

 

 

Sleep

0.80

0.106

0.023

 

 

 

 

*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.

30

Barracuda 7200.10 Serial ATA Product Manual, Rev. K

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Contents Barracuda 7200.10 Serial ATA Evision history Revision Date Sheets affected or commentsContents Barracuda 7200.10 Serial ATA Product Manual, Rev. K List of Figures Page Introduction About the Serial ATA interface Drive specifications Specification summary tablesDrive specifications summary for 750 Gbyte models Barracuda 7200.10 Serial ATA Product Manual, Rev. K Drive specifications summary for 500 Gbyte models Barracuda 7200.10 Serial ATA Product Manual, Rev. K Drive specifications summary for 400 Gbyte models Barracuda 7200.10 Serial ATA Product Manual, Rev. K Drive specifications summary for 320 Gbyte models Barracuda 7200.10 Serial ATA Product Manual, Rev. K Drive specifications summary for 300 Gbyte models Barracuda 7200.10 Serial ATA Product Manual, Rev. K Drive specifications summary for 250 Gbyte models Barracuda 7200.10 Serial ATA Product Manual, Rev. K Drive specifications summary for the 200 Gbyte mode To access the following web Drive specifications summary for the 160 Gbyte models Barracuda 7200.10 Serial ATA Product Manual, Rev. K Drive specifications summary for the 120 Gbyte models Barracuda 7200.10 Serial ATA Product Manual, Rev. K Drive specifications summary for the 80 Gbyte models Barracuda 7200.10 Serial ATA Product Manual, Rev. K Drive specifications summary for the 40 Gbyte models Barracuda 7200.10 Serial ATA Product Manual, Rev. K Default logical geometry LBA modeFormatted capacity Cylinders Read/write heads Sectors per track 16,383Recording and interface technology Model capacity 750 500 400 320 300Model capacity 160 120 Physical characteristics Seek time Start/stop timesPower specifications Typical current profiles Conducted noiseVoltage tolerance Power-management modes Active modeIdle mode Sleep modeEnvironmental specifications Nonoperating shock 2 Disc models 4 Disc modelsVibration Operating vibrationAcoustics Fluid Dynamic Bearing FDB motor acousticsTest for Prominent Discrete Tones PDTs Idle SeekElectromagnetic immunity Radio frequency environmentsTest Description Performance level Reference standard Safety certification ReliabilityAgency certification Electromagnetic compatibilityKorean RRL Australian C-Tick N176FCC verification Environmental protection Corrosive environmentChina Restriction of Hazardous Substances RoHS Directive Barracuda 7200.10 Serial ATA Product Manual, Rev. K Configuring and mounting the drive Handling and static-discharge precautionsConfiguring the drive Serial ATA cables and connectorsDrive mounting Barracuda 7200.10 Serial ATA Product Manual, Rev. K Serial ATA Sata interface Hot-Plug compatibilitySerial ATA device plug connector pin definitions Serial ATA connector pin definitionsSignal Pin Function DefinitionSupported ATA commands Supported ATA commandsCommand name Command code in hex F4H Identify Device command Word Description ValueXx07H 100 Description if bit is set to Bit Word Bit WordSet Features command Set Features command values3 S.M.A.R.T. commands M.A.R.T. commandsCode in features register A.R.T. command 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 Page Barracuda 7200.10 Serial ATA Product Manual, Rev. K Page Disc Drive, Scotts Valley, California 95066-4544, USA
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The Seagate ST3250310AS and ST3250410AS are notable hard drives that belong to the Barracuda series, known for their value and performance in the consumer and business sectors. These drives, featuring SATA interface technology, are especially popular among users seeking reliable storage solutions for desktops and personal computers.

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