CD54HC190 Datasheet, PDF (5/26 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
’HC191, ’HCT191 logic diagram
A
B
C
15
1
10
14
CLK
b
5
D/U
c
d
11
e
LOAD
f
g
4
CTEN
LOAD
DATA
TQ
CLK Q
FF0
LOAD
DATA
TQ
CLKQ
FF1
LOAD
DATA
TQ
h
i
CLKQ
FF2
3 _QA
2 _QB
j
k
l
M
N
6 _QC
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5