pc8477b National Semiconductor Corporation, pc8477b Datasheet - Page 34

• Manufacturer Part Number: pc8477b
• Description: Advanced Floppy Disk Controller
• Manufacturer: National Semiconductor Corporation

5 0 Functional Description
(Continued)
The PLL will remain locked to the crystal
for 4 byte times before asserting Read Gate
TL F 11332 – 6
FIGURE 5-2 Read Data Algorithm State Machine
250 kb s
300 kb s
TL F 11332 – 7
TL F 11332 – 8
500 kb s
1 Mb s
TL F 11332 – 9
TL F 11332 – 10
FIGURE 5-3 PC8477B Dynamic Window Margin Performance
e
(Typical performance at V
5 0V 25 C)
CC
34