Seagate ST9400326AS ユーザーズマニュアル

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Momentus 5400.6 SATA Product Manual, Rev. E
7
Table 3: 
Drive specifications for 120 and 80 GB models
Drive specification
ST9120315AS
 
ST9120315ASG
ST980313AS
 
ST980313ASG
Formatted Gbytes (512 bytes/sector)*
120
80
Guaranteed sectors
234,441,648
156,301,488
Bytes per sector
512
Physical read/write heads
1
Discs
1
Cache (Mbytes)
8
Recording density in BPI (bits/inch avg)
1,490k
Track density TPI (tracks/inch avg)
265k
Areal density (Gbits/inch
avg)
394
Spindle speed (RPM)
5,400
Average latency (msec)
5.6
Internal transfer rate (Mbits/sec max)
1,175
I/O data transfer rate
 
(Mbytes/sec max)
300
ATA data-transfer modes supported
SATA 1.0, Serial ATA Revision 2.6
 
PIO modes 0–4
 
Multiword DMA modes 0–2
 
Ultra DMA modes 0–6
Height (max)
9.5 +/- 0.2 mm (0.374 +/- .0079 inches)
Width (max)
69.85 mm +/- 0.25 mm (2.75 +/- 0.0098 inches)
Length (max)
100.35 + 0.20 / - 0.25 mm (3.957 + 0.0079 / - 0.0098 inches)
Weight (max)
93.5 grams (0.206 lb)
Power-on to ready (sec typical)
3.6
Power-on to ready (sec max)
3.8
Standby to ready (sec typical)
1.8
Standby to ready (sec max)
2
Track-to-track seek time, read (msec typical)
1
Average seek, read (msec typical)
14
Full-stroke seek, read (msec max)
30
Startup current, +5V (max)
1 amp
Seek power (typical)
1.54 watts
Read/write power (typical)
Read: 1.40 watts; Write: 1.78 watts
Idle mode, low power (typical)
0.67 watts
Standby mode
0.20 watts (typical)***
Sleep mode
0.20 watts (typical)***
Voltage tolerance (including noise)
+5V ± 5%
Ambient temperature 
0° to 60°C (operating), –40° to 70°C (nonoperating)
Temperature gradient
 
(°C per hour max)
20°C (operating)
 
35°C (nonoperating)
Relative humidity
5% to 95% (operating)
 
5% to 95% (nonoperating)
Relative humidity gradient
30% per hour max
Wet bulb temperature
 
(°C max)
37.7 (operating)
 
40 (nonoperating)
Altitude, operating
–304.8 m to 3,048 m (–1,000 ft to 10,000
ft)
Altitude, nonoperating 
 
(meters below mean sea level, max)
–304.8 m to 12,192 m (–1000 ft to 40,000
ft)