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Medalist SL Family Product Manual, June 1996
Quick specification chart
The following table serves as a quick reference of performance specifi-
cations for these drives. These and other specifications are discussed
in the Specification summary section following the table.
Drive specification
Guaranteed capacity (Mbytes) (×10
bytes)
Guaranteed sectors
Bytes per sector
Logical cylinders
Sectors per track
Logical read/write heads
Physical read/write heads
Physical discs
Physical cylinders
Recording density (Kbits per inch)
Track density (tracks per inch)
Internal data-transfer rate (Mbits per
sec max)
Spindle speed (RPM)
Average latency (msec)
Track-to-track seek time (msec typi-
cal)
Average seek time (msec typical)
Full-stroke seek time (msec typical)
1
Ext. transfer rate
(Mbytes per sec)
PIO mode 4
1
Ext. transfer rate
(Mbytes per sec)
DMA mode 2
Cache buffer (Kbytes)
Height, inches max (mm)
Width, inches max (mm)
Depth, inches max (mm)
Typical weight, lb (g)
continued
1. External transfer rates are based on the ATA-2 standard. Actual performance may
exceed the standard. See your Seagate
ST5540A
ST5851A ST51080A ST51270A
6
541.9
854.7
1,083.8
1,058,400 1,669,248 2,116,800
512
512
512
1,050
1,656
2,100
63
63
16
16
2
4
1
2
4,834
4,834
4,834
76.2
76.2
76.2
4,800
4,800
4,800
34.5 to
34.5 to
34.5 to
67.7
67.7
67.7
5,376
5.58
2.0
10.5
20.0
16.6
16.6
128
0.748 (19.0)
4.01 (101.9)
5.01 (127.3)
0.750 (340.2)
®
representative for details.
3
1,282.4
2,504,880
512
2,485
63
63
16
16
4
4
2
2
5,414
79.2
5,376
36.1 to
71.4
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