Seagate ST3320310CS - Pipeline HD 320 GB Hard Drive, Product Manual

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4 PipelineHD Series SATA Product Manual, Rev. A
Table 1:
Drive specifications summary
for 500, 320 and 160 Gbyte models
Drive specification ST3500321CS ST3320310CS ST3160310CS
Formatted capacity
(512 bytes/sector)*
500 Gbytes 320 Gbytes 160 Gbytes
Guaranteed sectors 976,773,168 625,142,448 312,581,808
Heads 4 2 1
Discs 2 1 1
Bytes per sector 512
Default sectors per track 63
Default read/write heads 16
Default cylinders 16,383
Recording density 1,020 kbits/in max 1,242 kbits/in max
Track density 173 ktracks/in avg
Areal density 176 Gbits/in
2
avg 215 Gbits/in
2
avg
Internal data transfer rate 980 Mbits/sec max 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 8 Mbytes
Height (max) 26.1 mm (1.028 inches) 20.20 mm (0.795 inches)
Width (max) 101.85 mm (4.010 inches)
Length (max) 146.99 mm (5.787 inches)
Weight (typical) 530 grams (1.168 lb.) 380 grams (0.838 lb.)
Power-on to ready 16 sec max
Standby to ready 16 sec max
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
Non-Operational Shock 300 Gs at 2 msec max 350 Gs at 2 msec max