Barracuda ATA III Family Product Manual, Rev. B
3
Average latency
(msec)
4.16 msec
Power-on to ready
(sec typical)
10 sec
Standby to ready
(sec typical)
10 sec
Startup current
(typical) 12V (peak)
2.2 amps
Track-to-track seek
time (msec typical)
1.2 (read), 2.0 (write)
Average seek time
(msec)
9.0
Average seek, read
(msec typical)
8.5
Average seek, write
(msec typical)
9.5
Full-stroke seek time
(msec max)
22.0 (read), 24.0 (write)
Seek power (typical)
11.5 watts
Read/Write power
(typical)
8.0 watts
Idle mode (typical)
6.0 watts
Standby mode
1.5 watts (typical), 1.6 watts (max)
Sleep mode
1.0 watts (typical), 1.25 watts (max)
Voltage tolerance
(including noise)
5V
±
5% – 0.7 amps max
12V
±
10% – 2.2 amps max
Ambient
temperature
0° to 55°C (op.), –40° to 70°C (nonop.)
Temperature gradi-
ent (°C per hour
max)
20°C
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)
29.4 (op.), 40.0 (nonop.)
Altitude, operating
–198.12 m to 3,048 m (–650 ft to 10,000
+
ft)
Drive Specification ST340824A ST330620A ST320414A ST315310A ST310215A
