HEF4029B 查看數據表（PDF） - Philips Electronics
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HEF4029B Datasheet PDF : 14 Pages
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Philips Semiconductors
Synchronous up/down counter,
binary/decade counter
FUNCTION TABLE
PL
BIN/DEC
H
X
L
X
L
L
L
L
L
H
L
H
UP/DN
X
X
L
H
L
H
Notes
1. H = HIGH state (the more positive voltage)
L = LOW state (the less positive voltage)
X = state is immaterial
= positive-going clock pulse edge
Product specification
HEF4029B
MSI
CE
CP
MODE
X
X
parallel load (Pn → On)
H
X
no change
L
count-down, decade
L
count-up, decade
L
count-down, binary
L
count-up, binary
Fig.5 State diagram; BIN/DEC = LOW.
January 1995
5
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