Seagate ST920814AM 사용자 설명서

4

EE25 Series Product Manual, Rev. E

 

 

 

 

Formatted (512 bytes/sector)*

40 Gbytes

30 Gbytes

Guaranteed sectors

78,140,160

58,605,120

Bytes per sector

512

Physical read/write heads

2

Discs

1

Cache

8 Mbytes

Recording density, BPI 

540.1k bits/inch at ID

Track density. TPI 

119k tracks/inch at ID

Areal density

64.3 Gbits/inch

2 

at ID

Spindle speed

5,400 RPM

Internal data transfer rate

321.1 Mbits/sec max

I/O data transfer rate

100 Mbytes/sec

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

100.2 +/-0.25 mm (3.945 +/-0.010 inches)

Weight

100 grams (0.22 lb) (typical)

Average latency

5.6 msec

Power-on to ready

 

     -20 to 85°C)

 

     -30 to -20°C

 

     3 sigma maximum at extreme temperature

 

3.0 seconds (typical)

 

15 seconds (typical)

 

30 seconds

Standby to ready

 

     -20 to 85°C

 

     -30 to -20°C

 

     3 sigma maximum at extreme temperature

 

3.0 seconds (typical)

 

15 seconds (typical)

 

30 seconds

Track-to-track seek time

1.0 ms (read, typical), 1.5 ms (write, typical)

Average seek time

12.5 msec (typical)

Average seek, read

12.5 msec (typical)

Average seek, write

14.5 msec (typical)

Full-stroke seek

22 msec (typical); 24 msec (max)

Startup current 5V

1.1 amps (typical)

Seek power

1.90 watts / 0.38 amps (typical)

Read power

1.90 watts / 0.38 amps (typical)

Write power

1.70 watts / 0.34 amps (typical)

Idle mode

0.99 watts / 0.20 amps (typical)

Standby mode

0.26 watts / 0.05 amps (typical)***

Sleep mode

0.26 watts / 0.05 amps (typical)***

Voltage tolerance (including noise)

5V ± 5%

Ambient temperature
    Operating

 

    Nonoperating

 

-30° to 85°C (OEM); -20° to 75°C (aftermarket); 

 

–40° to 95°C (OEM and aftermarket)

Temperature gradient

 

(°C per minute, max, noncondensing)

3°C (operating)

 

3°C (nonoperating)

Relative humidity (noncondensing)

5% to 90% (operating)

 

5% to 95% (nonoperating)

Relative humidity gradient

30% per hour max