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PC87393 Datasheet(PDF) 145 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # PC87393
Description  100-Pin LPC SuperI/O Devices for Portable Applications
PDF  148 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

PC87393 Datasheet(HTML) 145 Page - National Semiconductor (TI)

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9.0 Device Characteristics (Continued)
145
www.national.com
9.4.10
Standard Parallel Port Timing
Typical Data Exchange
9.4.11
Enhanced Parallel Port Timing
Symbol
Parameter
Conditions
Typ
Max
Unit
tPDH
Port Data Hold
These times are system dependent
and are therefore not tested.
500
ns
tPDS
Port Data Setup
These times are system dependent
and are therefore not tested.
500
ns
tSW
Strobe Width
These times are system dependent
and are therefore not tested.
500
ns
Symbol
Parameter
Min
Max
EPP 1.7 EPP 1.9
Unit
tWW19a
WRITE Active from WAIT Low
45
ns
tWW19ia
WRITE Inactive from WAIT Low
45
ns
tWST19a
DSTRB or ASTRB Active from WAIT Low
65
ns
tWEST
DSTRB or ASTRB Active after WRITE Active
2
ns
tWPDH
PD7-0 Hold after WRITE Inactive
0
ns
tWPDS
PD7-0 Valid after WRITE Active
15
ns
tEPDW
PD7-0 Valid Width
80
ns
tEPDH
PD7-0 Hold after DSTRB or ASTRB Inactive
0
ns
tPDS
tPDH
tSW
BUSY
ACK
PD7-0
STB
WRITE
DSTRB
ASTRB
PD7-0
WAIT
Valid
tWW19ia
tWPDH
tEPDH
tEPDW
or
tWW19a
tWST19a
tWPDS
tWEST
tWST19a



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