CD54HC112_15 Datasheet, PDF (2/20 Pages) Texas Instruments – Dual J-K Flip-Flop with Set and Reset Negative-Edge Trigger

CD54HC112, CD74HC112, CD54HCT112, CD74HCT112
Functional Diagram
4
1S
3
1J
2
1K
1
1CP
15
1R
2S ¹⁰
11
2J
12
2K
13
2CP
14
2R
F/F 1
F/F 2
5
1Q
6
1Q
9
2Q
7
2Q
GND = 8
V_CC = 16
TRUTH TABLE
INPUTS
OUTPUTS
S
R
CP
J
K
Q
Q
L
H
X
X
X
H
L
H
L
X
X
X
L
H
L
L
X
X
X
H (Note 1)
H (Note 1)
H
H
↓
L
L
No Change
H
H
↓
H
L
H
L
H
H
↓
L
H
L
H
H
H
↓
H
H
Toggle
H
H
H
X
X
No Change
H= High Level (Steady State)
L= Low Level (Steady State)
X= Don’t Care
↓_{= High-to-Low Transition}
NOTE:
1. Output states unpredictable if both S and R go High simultaneously after both being low at the same time.
2