Product manual

Barracuda ATA Family Product Manual, Rev. B 3
Width (mm max) 102
Length (mm max) 147.0
Weight (typical) 550 grams (1.2 lb)
Average latency
(msec) 4.16 msec
Power-on to ready
(sec typical) 12 sec
Standby to ready
(sec typical) 12 sec
Startup current
(typical) 12V (peak) 2.2 amps
Track-to-track seek
time (msec typical) 0.9
Average seek time
(read, msec typical) 8.0 7.6
Full-stroke seek
time (msec typical) 14.5 14.2
Seek power
(typical) 11.9 watts
Read/Write power
(typical) 8.5 watts 7.5 watts
Idle mode
(typical) 7.5 watts 6.8 watts
Standby mode
(typical) 1.2 watts
Sleep mode (typical) 1.0 watts
Voltage tolerance
(including noise)
5V
±
5% – 0.7 amps max
12V
±
10% – 2.4 amps max
Ambient tempera-
ture 0° to 55°C (op.), –40° to 70°C (nonop.)
Temperature gradi-
ent (°C per hour-
max) 20°C
Relative humidity
(op. and nonop.)
8% to 80% (op.)
5% to 90% (nonop.)
Relative humidity
gradient 30% per hour max
Drive Specification ST328040A
ST327270A
ST320430A ST313620A ST310220A ST36810A