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6 Pipeline HD Series SATA Product Manual, Rev. C
Table 2: Drive specifications summary for 320 and 160 Gbyte models
Drive specification ST3320410CS ST3320310CS ST3160310CS
Formatted capacity
(512 bytes/sector)*
320 Gbytes 160 Gbytes
Guaranteed sectors 625,142,448 312,581,808
Heads 2 1
Disks 1 1
Bytes per sector 512
Default sectors per track 63
Default read/write heads 16
Default cylinders 16,383
Recording density 1,242 kbits/in max
Track density 173 ktracks/in avg
Areal density 215 Gbits/in
2
avg
Internal data transfer rate 1,201 Mbits/sec max
Sustained data transfer rate 90 Mbytes/sec max
I/O data-transfer rate 300 Mbytes/sec max
ATA data-transfer modes supported PIO modes 0–4
Multiword DMA modes 0–2
Ultra DMA modes 0–6
Cache buffer 16 Mbytes 8 Mbytes
Height (max) 20.20 mm (0.795 inches)
Width (max) 101.85 mm (4.010 inches)
Length (max) 146.99 mm (5.787 inches)
Weight (typical) 415 grams (0.915 lb.)
Avg. latency 5.1 msec
Power-on to ready <6 sec typ
Standby to ready <6 sec typ
Track-to-track seek time <1.0 msec typical read;
<1.2 msec typical write
Average seek, read <14.0 msec typical
Average seek, write <15.0 msec typical
Startup current (typical) 12V (peak) 2.0 amps
Voltage tolerance (including noise) 5V ± 5%
12V ± 10%
Operating temperature
(Drive Case temperature)
0° to 75°C
Nonoperating temperature (Ambient) –40° to 70°C
Temperature gradient (max) 20°C per hour max (operating)
30°C per hour max (nonoperating)
Relative humidity 5% to 90% (operating)
5% to 95% (nonoperating)
Relative humidity gradient 30% per hour max
Wet bulb temperature (max) 37.7°C max (operating)
40.0°C max (nonoperating)
Altitude, operating –60.96 m to 3,048 m
(–200 ft. to 10,000+ ft.)
Altitude, nonoperating
(below mean sea level, max)
–60.96 m to 12,192 m
(–200 ft. to 40,000+ ft.)
Operational Shock 70 Gs at 2 msec max