Seagate ST9500621SS Constellation SATA Product Manual - Page 12

Table 1, Drive specifications summary for 500 and 160 GB models

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Table 1: Drive specifications summary for 500 and 160 GB 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, KBPI (kbits/in max) Track density, KTPI (ktracks/in avg.) Areal density, (Gbits/in2 avg) Spindle speed (RPM) Internal data transfer rate (Mbits/sec max) Sustained data transfer rate OD (Mbytes/sec max) I/O data-transfer rate (Mbytes/sec max) ATA data-transfer modes supported Cache buffer Weight: (maximum) Average latency Power-on to ready (sec max) Standby to ready (sec max) Track-to-track seek time (msec typical) Average seek, read (msec typical) Average seek, write (msec typical) Startup current (typical) 12V (peak) Voltage tolerance (including noise) Ambient temperature Temperature gradient (°C per hour max) Relative humidity Relative humidity gradient Wet bulb temperature (°C max) Altitude, operating Altitude, nonoperating (below mean sea level, max) Operational Shock (max at 2 msec) Non-Operational Shock (max at 2 msec) Vibration, operating Vibration, nonoperating ST9500530NS ST9160511NS 500 160 976,773,168 312,581,808 6 2 3 1 512 63 16 16,383 1410 200 283 7200 1136 95 300 PIO modes 0-4 Multiword DMA modes 0-2 Ultra DMA modes 0-6 32 Mbytes 196 grams (0.43 lbs) 188 grams (0.41 lbs) 4.16 msec 20 sec 6 sec 4 sec 0.5 read 0.7 write 8.0 8.4 2.0 amps 5V ± 5% 12V ± 5% 5° to 55°C (operating) -40° to 70°C (nonoperating) 20°C (operating) 20°C (nonoperating) 5% to 95% (operating) 5% to 95% (nonoperating) 20% per hour max 37.7 (operating) 40.0 (nonoperating) -60.96 m to 3048 m (-200 ft. to 10,000+ ft.) -60.96 m to 12,192 m (-200 ft. to 40,000+ ft.) 70 Gs 400 Gs 5-22 Hz: 0.25 Gs, Limited displacement 22-350 Hz: 0.50 Gs 350-500 Hz: 0.25 Gs 5-500 Hz: 3.0 Gs 6 Constellation Serial ATA Product Manual, Rev. D

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6
Constellation Serial ATA Product Manual, Rev. D
Table 1:
Drive specifications summary for 500 and 160 GB models
Drive specification
ST9500530NS
ST9160511NS
Formatted Gbytes (512 bytes/sector)*
500
160
Guaranteed sectors
976,773,168
312,581,808
Heads
6
2
Discs
3
1
Bytes per sector
512
Default sectors per track
63
Default read/write heads
16
Default cylinders
16,383
Recording density, KBPI (kbits/in max)
1410
Track density, KTPI (ktracks/in avg.)
200
Areal density, (Gbits/in
2
avg)
283
Spindle speed (RPM)
7200
Internal data transfer rate (Mbits/sec max)
1136
Sustained data transfer rate OD (Mbytes/sec max)
95
I/O data-transfer rate (Mbytes/sec max)
300
ATA data-transfer modes supported
PIO modes 0–4
Multiword DMA modes 0–2
Ultra DMA modes 0–6
Cache buffer
32 Mbytes
Weight: (maximum)
196 grams (0.43 lbs)
188 grams (0.41 lbs)
Average latency
4.16 msec
Power-on to ready (sec max)
20 sec
Standby to ready (sec max)
6 sec
4 sec
Track-to-track seek time (msec typical)
0.5 read
0.7 write
Average seek, read (msec typical)
8.0
Average seek, write (msec typical)
8.4
Startup current (typical) 12V (peak)
2.0 amps
Voltage tolerance (including noise)
5V ± 5%
12V ± 5%
Ambient temperature
5° to 55°C (operating)
–40° to 70°C (nonoperating)
Temperature gradient (°C per hour max)
20°C (operating)
20°C (nonoperating)
Relative humidity
5% to 95% (operating)
5% to 95% (nonoperating)
Relative humidity gradient
20% per hour max
Wet bulb temperature (°C max)
37.7 (operating)
40.0 (nonoperating)
Altitude, operating
–60.96 m to 3048 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)
70 Gs
Non-Operational Shock (max at 2 msec)
400 Gs
Vibration, operating
5–22 Hz:
0.25 Gs, Limited displacement
22–350 Hz:
0.50 Gs
350–500 Hz:
0.25 Gs
Vibration, nonoperating
5–500 Hz:
3.0 Gs