PC8477BV-1 National Semiconductor, PC8477BV-1 Datasheet - Page 20

• Manufacturer Part Number: PC8477BV-1
• Description: IC ADVANCED FLOPPY CTRLR 68PLCC
• Manufacturer: National Semiconductor
• Series: SuperFDC™r

Specifications of PC8477BV-1

• Controller Type: Floppy Disk Controller
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 68-LCC (J-Lead)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Current - Supply: -
• Interface: -
• Other names: *PC8477BV-1

4 0 Command Set Description
Notes
FE
FC
FB
F8
A1
C2
e
e
e
e
e
e
Data Pattern of F8 Clock Pattern of C7
Data Pattern of FE Clock Pattern of C7
Data Pattern of FB Clock Pattern of C7
Data Pattern of A1 Clock Pattern of 0A
Data Pattern of C2 Clock Pattern of 14
Data Pattern of FC Clock Pattern of D7
FIGURE 4-1 IBM Perpendicular and ISO Formats Supported by Format Command
All byte counts in decimal
FM mode is not guaranteed through functional testing
All byte values in hex
Two byte CRC uses standard polynomial x
Perpendicular Format GAP2
All other data rates use GAP2
(Continued)
20
e
e
41 bytes for 1 Mb s
22 bytes
16
a
x
12
a
x
5
a
1
TL F 11332 – 4