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8 DB35.2 Serial ATA Product Manual, Rev. B
Table 3: Drive specifications for 160, 120, and 80 Gbyte models
Drive specification ST3160212SCE ST3120213SCE ST3802110SCE
Formatted Gbytes (512 bytes/sector)* 160 120 80
Guaranteed sectors 312,581,808 234,441,648 156,301,488
Bytes per sector 512
Default sectors per track 63
Default read/write heads 16
Default cylinders 16,383
Recording density in BPI (kbits/inch max) 840.0
Track density TPI (ktracks/inch avg) 141.5
Areal density (Gbits/inch
2
avg) 119.0
Spindle speed (RPM) 7,200
Internal data transfer rate (Mbits/sec max) 867.2
Sustained transfer rate (Mbytes/sec max) 83.0
I/O data transfer rate (Mbytes/sec max) 300
ATA data-transfer modes supported PIO modes 0–4
Multiword DMA modes 0–2
Ultra DMA modes 0–6
SATA data-transfer modes supported 3.0 Gbits/sec
1.5 Gbits/sec
Cache buffer 2 Mbytes
Height (max) 26.1 mm (1.028 inches)
Width (max) 101.6 mm (4.000 inches) +/-0.010 inches
Length (max) 146.99 mm (5.787 inches)
Weight (typical) 580 grams (1.28 lb.)
Average latency (msec) 4.16
Power-on to ready (typical) 16 secs
Standby to ready (typical) 16 secs
Track-to-track seek time (msec typical) <0.8 (read), <1.0 (write)
Average seek (msec typical) 18 (read), 20 (write)
Startup current (typical) 12V (peak) 2.0 amps
Seek power (typical) 12.40 watts
Operating (Consumer Storage Profile) 9.25 watts
Operating (PVR Profile) 4.91 watts 5.25 watts
Idle mode (typical) 8.00 watts
Standby mode (typical) 0.800 watts
Sleep mode (typical) 0.800 watts
Voltage tolerance
(including noise)
5V ± 5%
12V ± 10%
Ambient temperature 0° to 60°C (operating)
–40° to 70°C (nonoperating)
Temperature gradient
(°C per hour max)
20°C (operating)
30°C (nonoperating)
Relative humidity 5% to 90% (operating)
5% to 95% (nonoperating)
Relative humidity gradient 30% per hour max
Wet bulb temperature
(°C max)
37.7 (operating)
40 (nonoperating)
Altitude, operating –60.96 m to 3,048 m
(–200 ft to 10,000+ ft)