PC8477BV-1 National Semiconductor, PC8477BV-1 Datasheet - Page 34

• 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

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
(Typical performance at V
5 0V 25 C)
e
CC
34