C.
3.5
inch
FDD SPECIFICATIONS
1.
Introduction
SPECIFICATIONS SUMMARY
Performance Specifications
Single Double
Density Density
Capacity (Kbytes)
unformatted
Per Disk
500 lo00
Per Surface
250 500
Per Track
3.125 6.25
16 Sectors/Track
327.6 655.2
9 SectodTrack
368.6 737.2
5 Sectors/Track
409.6 819.2
Formatted Per Disk
Transfer Rate (Kbit/sec) 125 250
Access Time (msec)
Average Latency (msec) 100 100
Track to Track without Settling
6
6
Average with Settling
169 169
Settling Time (msec)
15 15
Motor Start Time (sec) 0.5 0.5
Functional Specifications
Single Double
Density Density
Rotational Speed (r.p.m)*
300 300
Recording Density (BPI) 4359 8717
Track Density (TPI) 135 135
Tracks 160 160
Encoding Method FM MFM
*
Rational speed is automatically changed by internal sensor.
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