Barracuda ATA IV Family Product Manual, Rev. B 3
Average latency
(msec) 4.16
Power-on to ready
(sec typical) 10 sec
Standby to ready
(sec typical) 10 sec
Startup current
(typical) 12V (peak) 2.8 amps
Track-to-track seek
time (msec typical) 1.0 (read), 1.2 (write)
Average seek time
(msec typical) 9.5 9.0
Average seek, read
(msec typical) 9.5 9.0
Average seek, write
(msec typical) 10.5 10.0
Seek power (typical) 13.0 watts
Read/write power
(typical) 12.5 watts
Idle mode (typical) 9.8 watts
Standby mode 1.15 watts (typical), 1.3 watts (max)
Sleep mode 0.9 watts (typical), 1.1 watts (max)
Voltage tolerance
(including noise)
5V
±
5%
12V
±
10%
Ambient
temperature 0° to 60°C (op.), –40° to 70°C (nonop.)
Temperature gradi-
ent (°C per hour
max)
20°C (op.)
30°C (nonop.)
Relative humidity
(op. and nonop.)
5% to 90% (op.)
5% to 95% (nonop.)
Relative humidity
gradient 30% per hour max
Wet bulb tempera-
ture (°C max) 30 (op.), 40 (nonop.)
Altitude, operating –198.12 m to 3,048 m (–650 ft to 10,000
+
ft)
Drive specification ST380021A ST360021A ST340016A ST320011A
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