Seagate ST360020ACE, ST320410ACE, ST380020ACE, ST340810ACE Track-to-track seek Time msec typical

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U Series CE Family Product Manual, Rev. A					3

Drive Specification	ST380020ACE	ST360020ACE	ST340810ACE	ST320410ACE


Track-to-track seek
time (msec typical)		1.2 (read) 2.0 (write)

Average seek time
(msec typical)	8.9

Average seek read
(msec typical)	9.9

Average seek write
(msec typical)	10.9

Full-stroke seek time
(msec typical)		22.0 (read) 24.0 (write)

Average latency
(msec)		5.55 msec

Power-on to ready
(sec typical)		6.5 sec

Standby to ready
(sec typical)		6.5 sec

Spindown
(sec typical)		10 sec

Startup current
(typical)		2.5 amps

Seek power (typical)		7.5 watts

Read/Write power		7.5 watts

Idle mode (typical)		5.0 watts

Standby mode
(typical)		1.2 watts

Sleep mode (typical)		0.9 watts

Voltage tolerance		5V ± 5%, 12V ± 10%
(including noise)		5V ± 5%, 12V ± 10%

Ambient temperature	0° to 60°C (op.), –40° to 70°C (nonop.)

Temperature gradient
(°C per hour max)		20°C

Relative humidity		5% to 90% (op.)
(op. and nonop.)		5% to 95% (nonop.)

Relative humidity
gradient		30% per hour max

Wet bulb temperature
(°C max)		29.4 (op.), 40.0 (nonop.)

Altitude, operating	–60.96 m to 3,048 m (–200 ft to 10,000+ ft)

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Contents Series CE Family Page Series CE Family Page Contents ATA interface Configuring and mounting the driveFigures Series CE Family Product Manual, Rev. a Introduction Specification summary table Track-to-track seek Time msec typical Altitude meters be Low mean sea level Formatted capacity Default logical geometryLBA Mode Recording and interface technology Physical characteristicsPhysical organization Start/stop times Seek timePower consumption Power specificationsTypical current profile Power Mode Typical Watts Typical Amps Means 12VVoltage tolerance Power-management modesConducted noise Idle and Standby timers Environmental tolerances Ambient temperatureTemperature gradient Sleep modeShock 3.2 Wet bulb temperatureHumidity 3.1 Relative Humidity AltitudeDrive acoustics Operating vibrationNonoperating vibration Reliability Agency certification 1.12.1 Safety certificationElectromagnetic immunity Korean RRL Electromagnetic compatibilityTaiwan Bsmi Australian C-Tick N176 FCC verificationHandling and static-discharge precautions Configuring and mounting the driveOptions jumper block Jumper settings Master/slave configurationDrive as master with a non-ATA-compatible slave Ultra ATA/100 cable Cable-select optionAlternate capacity jumper Drive mounting Recommended Case temperature Measurement locationATA interface ATA interface signals and connector pinsO pins and supported ATA signals Command name Command code in hex ATA-standard commands Supported ATA commandsATA-standard security commands Identify Drive commandCommand name ATA-standard power-management commands0C5AH Word DescriptionXx07H Word Description ValueXx3FH Bit Word Description if bit is set to Bit WordSet Features command 0AH Code in Features A.R.T. Command Register 4 S.M.A.R.T. commandsSeries CE Family Product Manual, Rev. a Series CE Family Product Manual, Rev. a Series CE Family Product Manual, Rev. a Series CE Family Product Manual, Rev. a Series CE Family Product Manual, Rev. a