Seagate ST940815A ユーザーズマニュアル

Momentus 5400.3 PATA Product Manual, Rev. C

7

Formatted Gbytes (512 bytes/sector)*

60

40

Guaranteed sectors

117,410,240

78,140,160

Bytes per sector

512

Physical read/write heads

2

1

Discs

1

Cache (Mbytes)

8

Recording density, BPI (bits/inch typical)

835k

Track density, TPI (tracks/inch typical)

150k

Areal density (Gbits/inch

2 

max)

132

Spindle speed (RPM)

5,400

Internal data transfer rate (Mbits/sec max)

352

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

Height

9.5 +/-0.2 mm (0.374 +/-.008 inches)

Width

69.85 +/-0.25 mm (2.750 +/-0.010 inches)

Length

100.50 +/-0.25 mm (3.957 +/-0.010 inches)

Weight (typical)

98 grams (0.216 lb) 

Average latency (msec)

5.6

Power-on to ready (sec typical)

3.0

Standby to ready (sec typical)

3.0

Track-to-track seek time (msec typical)

1.0 (read), 1.5 (write)

Average random seek , write (msec typical)

13.0

Average random seek, read (msec typical)

11.0

Average random seek, (msec typical)

12.5

Full-stroke seek (msec)

22 (typical); 24 (max)

Startup current 5V (typical)

1.0 amps

Seek power (typical)

2.0 watts

Read/write power (typical)

Read: 2.0 watts; Write: 1.8 watts

Idle mode (typical, low power)

0.8 watts 

Standby mode

0.2 watts (typical)***

Sleep mode

0.2 watts (typical)***

Voltage tolerance (including noise)

5V ± 5%

Ambient temperature

0° to 60°C (operating), –32° to 70°C (nonoperating)

Temperature gradient

 

(°C per hour max, noncondensing)

20°C (operating)

 

30°C (nonoperating)

Relative humidity

 

(noncondensing)

5% to 90% (operating)

 

5% to 95% (nonoperating)

Relative humidity gradient

30% per hour max

Wet bulb temperature (°C max)

30°C (operating)

 

38°C (nonoperating)

Altitude, operating

–304.8 m to 3,048 m (–1000 ft to 10,000 ft)

Altitude, nonoperating (below mean sea level)

–304.8 m to 12,192 m (–1,000 ft to 40,000 ft) max

Shock, operating (Gs max at 2 msec)

350

Shock, nonoperating (Gs max at 2 msec)

800