HD74HC93 Datasheet, PDF (2/11 Pages) Hitachi Semiconductor – 4-bit Binary Counter

HD74HC93
Function Table
Reset/Count Function Table
Reset Inputs
Outputs
R₀₍₁₎
R₀₍₂₎
Q_D
Q_C
Q_B
H
H
L
L
L
L
×
Count
×
L
Count
BCD Count Sequence
Outputs
Count
Q_D
Q_C
Q_B
0
L
L
L
1
L
L
L
2
L
L
H
3
L
L
H
4
L
H
L
5
L
H
L
6
L
H
H
7
L
H
H
8
H
L
L
9
H
L
L
10
H
L
H
11
H
L
H
12
H
H
L
13
H
H
L
14
H
H
H
15
H
H
H
Notes: Output Q_A is connected to input B for BCD count.
Q_A
L
Q_A
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
2