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Orchestrating a brigher world

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  5. FD1155C Floppy Drive

FD1155C Floppy Drive

Profile1.2MB, 5.25 Inch
Capacity:
Formatted:
High density MFM mode:
@ 26 sect/trk = 1025kb
@ 15 sect/trk = 1183kb
@ 8 sect/trk = 1262kb
High density FM mode:
@ 26 sect/trk = 512kb
@ 15 sect/trk = 591kb
@ 8 sect/trk = 631kb
Normal density MFM mode:
@ 16 sect/trk = 655kb
@ 9 sect/trk = 737kb
Normal density FM mode:
@ 16 sect/trk = 328kb
@ 9 sect/trk = 368kb
Unformatted:
High Density: MFM = 1.6MB; FM = 0.8MB
Normal Density: MFM = 1.0MB; FM = 0.5MB
Dimensions
Height:
1.6 in/41 mm
Width:
5.7 in/146 mm
Depth:
7.9 in/203 mm
Weight:
3.3 lb/1.5 kg
Disk Configuration
Disk Size:
5.25"
Data Heads:
2
Data Surfaces:
2
Tracks/Surface:
High density mode = 77 Normal density mode = 80
Track Density:
96 tpi
Bit Density:
High density mode = 9,646 bpi Normal density mode = 5,922 bpi
Record Method:
MFM, FM
Rotational Rate:
High density mode = 360 RPM Normal density mode = 300 RPM
Miscellaneous
Notes:
Can read 48 tpi media
Performance Specifications
Seek Times:
Track to track = 3ms
Settle Time:
15ms
Data Transfer:
High density MFM mode = 500kb/s
High density FM mode = 250kb/s
Normal density MFM mode = 250kb/s
Normal density FM mode = 125kb/s
Power
Voltage Req'd:
+5V, +12V
Pwr Dissipation:
Read/write mode = 4.8 watts
Reliability
MTBF:
12,000 POH
MTTR:
<30 minutes