CD54HC190 Datasheet, PDF (3/26 Pages) Texas Instruments – SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL

CD54HC190, CD74HC190
CD54HC191, CD74HC191, CD54HCT191, CD74HCT191
SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL
SCHS275E − MARCH 2002 − REVISED OCTOBER 2003
’HC190 logic diagram
A
B
15
1
14
CLK
b
5
D/U
c
11
LOAD
d
e
f
g
h
i
LOAD
DATA
LOAD
DATA
TQ
TQ
j
CLKQ
CLKQ
FF0
FF1
4
CTEN
3
QA
k
l
m
n
o
p
2
QB
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3