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PC87303 Datasheet(PDF) 111 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) 111 Page - National Semiconductor (TI)

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100 Electrical Characteristics (Continued)
10216 Extended Capabilities Port Timing
102161 Forward
Symbol
Parameter
Conditions
Min
Max
Units
tecdsf
Data Setup before STB Active
0
ns
tecdhf
Data Hold after BUSY
0
ns
teclhf
BUSY Setup after STB Active
75
ns
techhf
STB Active after BUSY
0
1
sec
techlf
BUSY Setup after STB Inactive
0
35
ms
tecllf
STB Active after BUSY
0
ns
TLC12074 – 79
FIGURE 10-22 ECP Parallel Port Forward Timing Diagram
102162 Backward
Symbol
Parameter
Conditions
Min
Max
Units
tecdsb
Data Setup before STB Active
0
ns
tecdhb
Data Hold after BUSY
0
ns
teclhb
BUSY Setup after STB Active
75
ns
techhb
STB Active after BUSY
0
1
sec
techlb
BUSY Setup after STB Inactive
0
35
ms
tecllb
STB Active after BUSY
0
ns
TLC12074 – 80
FIGURE 10-23 ECP Parallel Port Backward Timing Diagram
111



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