Seagate ST250DM000 Product Manual page 22

Drive specifications summary
Table 7:
Drive specification
Formatted Gbytes (512 bytes/sector)*
Guaranteed sectors
Bytes per sector
Default sectors per track
Default read/write heads
Default cylinders
Recording density, KBPI (kbits/in max)
Track density, KTPI (ktracks/in avg.)
2
Areal density, (Gbits/in avg)
Spindle speed (RPM)
Internal data transfer rate (Mbits/sec max)
Sustained data transfer rate OD (Mbytes/sec max)
I/O data-transfer rate (Mbytes/sec max)
ATA data-transfer modes supported
Cache buffer
Height (mm max)
Width (mm max)
Length (mm max)
Weight (max)
Average latency (msec)
Power-on to ready (sec max)
Standby to ready (sec max)
Track-to-track seek time (msec typical)
Average seek, read (msec typical)
Average seek, write (msec typical)
Startup current (typical) 12V (peak)
Voltage tolerance (including noise)
Ambient temperature
Temperature gradient (°C per hour max)
Relative humidity
Relative humidity gradient
Wet bulb temperature (°C max)
Altitude, operating
Altitude, nonoperating
(below mean sea level, max)
Operational Shock (Gs max at 2 msec)
Non-Operational Shock (Gs max at 2 msec)
Vibration, operating
16
for 120 Gbyte models
ST3120814A
120
234,441,648
512
63
16
16,383
840.0
141.5
119.0
7,200
867.2
83.0
100
PIO modes 0–4
Multiword DMA modes 0–2
Ultra DMA modes 0–5
8 Mbytes
26.1 mm (1.028 inches)
101.6 mm (4.000 inches) +/- 0.010 inches
146.99 mm (5.787 inches)
580 grams (1.28 lb.)
4.16
<10.0 sec
<10.0 sec
<0.8 (read), <1.0 (write)
<11.0
<12.0
2.8 amps
5V ± 5%
12V ± 10%
0° to 60°C (operating)
–40° to 70°C (nonoperating)
20°C (operating)
30°C (nonoperating)
5% to 90% (operating)
5% to 95% (nonoperating)
30% per hour max
37.7 (operating)
40.0 (nonoperating)
–60.96 m to 3,048 m
(–200 ft. to 10,000+ ft.)
–60.96 m to 12,192 m
(–200 ft. to 40,000+ ft.)
63
350 Gs
5–22 Hz: 0.25 Gs, Limited displacement
22–350 Hz: 0.5 Gs
350–500 Hz: 0.25 Gs
Barracuda 7200.9 PATA Product Manual, Rev. F
ST3120213A
2 Mbytes