6
DB35 Series 7200.2 Product Manual, Rev. D
Table 2:
Drive specifications for 300, 250, and 200 Gbyte models
Drive specification
ST3300822ACE
ST3250824ACE
ST3200827ACE
Formatted Gbytes (512 bytes/sector)*
300
250
200
Guaranteed sectors
586,072,368
488,397,168
390,721,968
Bytes per sector
512
Default sectors per track
63
Default read/write heads
16
Default cylinders
16,383
Recording density, KBPI (kbits/in max)
790.1
Track density, KTPI (ktracks/in max)
124.5
Areal density, (Gbits/in
2
max)
97.69
Spindle speed (RPM)
7,200
Internal data transfer rate (Mbits/sec max)
867.2
Sustained data transfer rate (Mbytes/sec max)
76.6
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
Height (mm max)
26.1 mm (1.028 inches)
Width (mm max)
101.6 mm (4.000 inches) +/- 0.010 inches
Length (mm max)
146.99 mm (5.787 inches)
Weight (typical)
655 grams (1.44 lb.)
580 grams (1.28 lb.)
Average latency (msec)
4.16
Power-on to ready (sec max)
16 sec
Standby to ready (sec max)
16 sec
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 Storage Profile
4.88 watts
Idle mode (typical)
8.00 watts
Standby mode (typical)
0.80 watts
Sleep mode (typical)
0.80 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.)
Altitude, nonoperating (below mean sea level, max)
–60.96 m to 12,192 m
(–200 ft. to 40,000+ ft.)
Summary of Contents for DB35 - Series 750 GB Hard Drive
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