hef4518b NXP Semiconductors, hef4518b Datasheet - Page 3
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hef4518b
Manufacturer Part Number
hef4518b
Description
Dual Bcd Counter
Manufacturer
NXP Semiconductors
Datasheet
1.HEF4518B.pdf
(7 pages)
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FUNCTION TABLE
Notes
1. H = HIGH state (the more positive voltage)
CP
X
H
X
L
L = LOW state (the less positive voltage)
X = state is immaterial
0
= positive-going transition
= negative-going transition
CP
H
X
L
X
1
MR
H
L
L
L
L
L
L
counter advances
counter advances
no change
no change
no change
no change
O
0
to O
MODE
3
= LOW
Fig.3 Logic diagram (one counter).