4
DiamondMax 21 PATA Product Manual, Rev. B
Table 1:
Drive specifications summary
for the 320 and 300 Gbyte models
Drive specification
STM3320820A
STM3300620A
Formatted Gbytes (512 bytes/sector)*
320
300
Guaranteed sectors
625,142,448
586,072,368
Heads
4
3
Discs
2
Bytes per sector
512
Default sectors per track
63
Default read/write heads
16
Default cylinders
16,383
Recording density
781 kbits/in max
Track density
145 ktrakcs/in avg.
Areal density
114.4 Gbits/in
2
avg
Spindle speed
7,200 RPM
Internal data transfer rate
1,030 Mbits/sec max
Sustained data transfer rate
72 Mbytes/sec max
I/O data-transfer rate
100 Mbytes/sec max
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 (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
635 grams
600 grams
Average latency
4.16 msec
Power-on to ready (max)
15 sec
11 sec
Standby to ready (max)
15 sec
Track-to-track seek time (typical)
<0.8 msec (read), <1.0 msec (write)
Average seek, read (typical)
<11.0 msec
Average seek, write (typical)
<12.0 msec
Startup current (typical) 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
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 (operating)
37.7°C (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
68 G at 2 msec
Non-Operational Shock
350 G at 2 msec
Содержание STM301603N1AAA-RK - Maxtor Basics 160 GB Hard Drive
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