Seagate STM303004N1AAA-RK DiamondMax 21 PATA Product Manual - Page 12

Table 2, Drive specifications summary

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Table 2: Drive specifications summary for 250 and 200 Gbyte models Drive specification Formatted Gbytes (512 bytes/sector)* Guaranteed sectors Heads Discs Bytes per sector Default sectors per track Default read/write heads Default cylinders Recording density Track density Areal density Spindle speed Internal data transfer rate Sustained data transfer rate OD I/O data-transfer rate ATA data-transfer modes supported Cache buffer Height (max) Width (max) Length (max) Weight (max) Average latency Power-on to ready (max) Standby to ready (max) Track-to-track seek time (typical) Average seek, read (typical) Average seek, write (typical) Startup current (typical) 12V (peak) Voltage tolerance (including noise) Ambient temperature Temperature gradient Relative humidity Relative humidity gradient Wet bulb temperature Altitude, operating Altitude, nonoperating (below mean sea level, max) Operational Shock Non-Operational Shock STM3250620A STM3250820A 250 488,397,168 3 2 512 63 16 16,383 813 kbits/in max 145 ktracks/in avg. 114.4 Gbits/in2 avg 7,200 RPM 1,030 Mbits/sec max 72 Mbytes/sec max 100 Mbytes/sec max PIO modes 0-4 Multiword DMA modes 0-2 Ultra DMA modes 0-5 16 Mbytes 8 Mbytes 26.1 mm (1.028 inches) 101.6 mm (4.000 inches) +/- 0.010 inches 146.99 mm (5.787 inches) 600 grams 4.16 msec 11 sec 15 sec

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6
DiamondMax 21 PATA Product Manual, Rev. B
Table 2:
Drive specifications summary
for 250 and 200 Gbyte models
Drive specification
STM3250620A
STM3250820A
STM3200820A
Formatted Gbytes (512 bytes/sector)*
250
200
Guaranteed sectors
488,397,168
390,721,968
Heads
3
Discs
2
Bytes per sector
512
Default sectors per track
63
Default read/write heads
16
Default cylinders
16,383
Recording density
813 kbits/in max
781 kbits/in max
Track density
145 ktracks/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 OD
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
16 Mbytes
8 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 (max)
600 grams
Average latency
4.16 msec
Power-on to ready (max)
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
37.7°C max (operating)
37.7°C max (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