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Seagate Barracuda 7200.8 PATA Manual

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Barracuda 7200.8 PATA Product Manual, Rev. F
Table 2: Drive specifications for 300 Gbyte models
Drive specification ST3300831A ST3300631A
Formatted Gbytes (512 bytes/sector)* 300 300
Guaranteed sectors 586,072,368 586,072,368
Bytes per sector 512
Default sectors per track 63
Default read/write heads 16
Default cylinders 16,383
Recording density, BPI
(bits/in max)
763,000
Track density, TPI
(tracks/in avg.)
120,000
Areal density,
(Mbits/in
2
avg)
91,560
Spindle speed (RPM) 7,200
Internal data transfer rate (Mbytes/sec max) 95
Sustained data transfer rate OD (Mbytes/sec) 65
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
Height (mm max) 26.11 mm (1.028 inches)
Width (mm max) 101.85 mm (4.010 inches)
Length (mm max) 146.99 mm (5.787 inches)
Weight (max) 635 grams (1.39 lb.)
Average latency (msec) 4.16
Power-on to ready (sec max) 10.0 sec
Standby to ready (sec max) 10.0 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 (typical) 12V (peak) 2.8 amps
Seek power (typical) 12.4 watts
Read/write power (typical) 12.8 watts
Idle mode (typical) 7.2 watts
Standby mode (typical) 0.8 watts
Sleep mode (typical) 0.8 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.)
… 12 …


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