HD74AC393 Datasheet, PDF (3/10 Pages) Hitachi Semiconductor – Dual Modulo-16-Counter

Truth Table
Outputs
Count
Q₃
Q₂
0
L
L
1
L
L
2
L
L
3
L
L
4
L
H
5
L
H
6
L
H
7
L
H
8
H
L
9
H
L
10
H
L
11
H
L
12
H
H
13
H
H
14
H
H
15
H
H
H : High Voltage Level
L : Low Voltage Level
Logic Diagram (one, half shown)
CP
K CP J
CD
Q
K CP J
CD
Q
MR
Q0
Q1
HD74AC393
Q₁
Q₀
L
L
L
H
H
L
H
H
L
L
L
H
H
L
H
H
L
L
L
H
H
L
H
H
L
L
L
H
H
L
H
H
K CP J
CD
Q
Q2
K CP J
CD
Q
Q3
3