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6
1.3 Recording and interface technology
Interface
Recording method
Recording density BPI (bits/inch)
Track density TPI (tracks/inch)
Areal density (Mbits/inch
Spindle speed (RPM) (± 0.2%)
Internal data-transfer rate
(Mbits/sec max)
I/O data-transfer rate
(Mbytes/sec max)
Interleave
Cache buffer (Kbytes)
1.4 Physical characteristics
Drive Specification
Maximum height
(mm)
(inches)
Maximum width
(mm)
(inches)
Maximum length
(mm)
(inches)
Typical weight
(grams)
(pounds)
1.5 Seek time
Seek measurements are taken with nominal power at 25°C ambient
temperature. All times are measured using drive diagnostics. The spec-
ifications in the table below are defined as follows:
•
Track-to-track seek time is an average of all possible single-track
seeks in both directions.
U8 Family Product Manual, Rev. A
ATA
24/26 EPRML
349,374
18,700
2
max)
6,536
5,400
285.5
16.6 (PIO mode 4)
66.6 (Ultra DMA mode 4)
1:1
512
ST31722A, ST313021A
ST38410A, ST34313A
26.1
1.028
101.8
4.020
147.0
5.78
590
1.3
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