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SN74F168 Datasheet, PDF (3/9 Pages) Texas Instruments – SYNCHRONOUS 4-BIT UP/DOWN DECADE COUNTER
logic diagram (positive logic)
LOAD 9
U/D 1
ENT 10
ENP 7
CLK 2
A3
SN74F168
SYNCHRONOUS 4-BIT UP/DOWN DECADE COUNTER
SDFS057A – D2932, MARCH 1987 – REVISED OCTOBER 1993
15
RCO
G2
1, 2T/C3
1, 3D
M1
14 QA
B4
C5
D6
G2
1, 2T/C3
1, 3D
M1
13 QB
G2
1, 2T/C3
1, 3D
M1
12 QC
G2
1, 2T/C3
1, 3D
M1
11 QD
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2–3