Seagate Barracuda 7200.10 PATA, Product Manual

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4 Barracuda 7200.10 PATA Product Manual, Rev. A
Table 1: Drive specifications summary for 750 and 500 Gbyte models
Drive specification ST3750840A ST3750640A ST3500830A ST3500630A
Formatted Gbytes (512 bytes/sector)* 750 500
Guaranteed sectors 1,465,149,168 976,773,168
Heads 8 6
Discs 4 3
Bytes per sector 512
Default sectors per track 63
Default read/write heads 16
Default cylinders 16,383
Recording density, KBPI (kbits/in max) 926 813
Track density, KTPI (ktracks/in max) 145
Areal density, (Gbits/in
2
) min/max 128.2 114.4
Spindle speed (RPM) 7,200
Internal data transfer rate (Mbits/sec max) 1,030
Sustained data transfer rate (Mbytes/sec max) 78 72
I/O data-transfer rate (Mbytes/sec max) 100
ATA data-transfer modes
supported PIO modes 0–4
Multiword DMA modes 0–2
Ultra DMA modes 0–5
Cache buffer 8 Mbytes 16 Mbytes 8 Mbytes 16 Mbytes
Height (mm max) 26.1 mm (1.028 inches)
Width (mm) 101.6 mm (4.000 inches) +/- 0.010 inches
Length (mm max) 146.99 mm (5.787 inches)
Weight (max) 720 grams 635 grams
Average latency (msec) 4.16
Power-on to ready (sec max) 15 sec
Standby to ready (sec max) 15 sec
Track-to-track seek time (msec typical) <0.8 read; <1.0 write
Average seek, read (msec typical) <11.0
Average seek, write (msec typical) <12.0
Startup current (max) 12V (peak) 2.8 amps
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)
37.7 (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 (max at 2 msec) 68 Gs
Non-Operational Shock (max at 2 msec) 300 Gs