Table of Contents
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Table 1:
Specifications for 40 and 30 Gbyte models
Drive specification
Formatted (512 bytes/sector)*
Guaranteed sectors
Bytes per sector
Physical read/write heads
Discs
Cache
Recording density, BPI
Track density. TPI
Areal density
Spindle speed
Internal data transfer rate
I/O data transfer rate
ATA data-transfer modes supported
Height
Width
Length
Weight
Average latency
Power-on to ready
-20 to 85°C)
-30 to -20°C
3 sigma maximum at extreme temperature
Standby to ready
-20 to 85°C
-30 to -20°C
3 sigma maximum at extreme temperature
Track-to-track seek time
Average seek time
Average seek, read
Average seek, write
Full-stroke seek
Startup current 5V
Seek power
Read power
Write power
Idle mode
Standby mode
Sleep mode
Voltage tolerance (including noise)
Ambient temperature
Operating
Nonoperating
Temperature gradient
(°C per minute, max, noncondensing)
Relative humidity (noncondensing)
Relative humidity gradient
4
ST940813AM
ST940814AM
(OEM)
(Aftermarket)
40 Gbytes
78,140,160
512
2
1
8 Mbytes
540.1k bits/inch at ID
119k tracks/inch at ID
2
64.3 Gbits/inch
at ID
5,400 RPM
321.1 Mbits/sec max
100 Mbytes/sec
PIO modes 0–4; Multiword DMA modes 0–2; Ultra DMA modes 0–5
9.5 +/-0.2 mm (0.374 +/-.008 inches)
69.85 +/-0.25 mm (2.750 +/-0.010 inches)
100.2 +/-0.25 mm (3.945 +/-0.010 inches)
100 grams (0.22 lb) (typical)
5.6 msec
3.0 seconds (typical)
15 seconds (typical)
30 seconds
3.0 seconds (typical)
15 seconds (typical)
30 seconds
1.0 ms (read, typical), 1.5 ms (write, typical)
12.5 msec (typical)
12.5 msec (typical)
14.5 msec (typical)
22 msec (typical); 24 msec (max)
1.1 amps (typical)
1.90 watts / 0.38 amps (typical)
1.90 watts / 0.38 amps (typical)
1.70 watts / 0.34 amps (typical)
0.99 watts / 0.20 amps (typical)
0.26 watts / 0.05 amps (typical)***
0.26 watts / 0.05 amps (typical)***
5V ± 5%
-30° to 85°C (OEM); -20° to 75°C (aftermarket);
–40° to 95°C (OEM and aftermarket)
3°C (operating)
3°C (nonoperating)
5% to 90% (operating)
5% to 95% (nonoperating)
30% per hour max
ST930813AM
ST930814AM
(OEM)
(Aftermarket)
30 Gbytes
58,605,120
EE25 Series Product Manual, Rev. E
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