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PC87303 Datasheet(PDF) 109 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # PC87303
Description  PC87303VUL SuperI/OTM Sidewinder Lite Floppy Disk Controller, Keyboard Controller, Real-Time Clock, Dual UARTs, IEEE 1284 Parallel Port, and IDE Inter
PDF  114 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

PC87303 Datasheet(HTML) 109 Page - National Semiconductor (TI)

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100 Electrical Characteristics (Continued)
10214 Parallel Port Timing
Symbol
Parameter
Conditions
Type
Max
Units
tPDH
Port Data Hold
(Note 1)
500
ns
tPDS
Port Data Setup
(Note 1)
500
ns
tPI
Port Interrupt
33
ns
tSW
Strobe Width
(Note 1)
500
ns
Note 1
These times are system dependent and are therefore not tested
TLC12074 – 75
FIGURE 10-18 Compatible Mode Parallel Port Interrupt Timing
TLC12074 – 76
FIGURE 10-19 Extended Mode Parallel Port Interrupt Timing
TLC12074 – 77
FIGURE 10-20 Typical Parallel Port Data Exchange
109



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