74LCX74 Datasheet, PDF (2/11 Pages) Fairchild Semiconductor – Low Voltage Dual D-Type Positive Edge-Triggered Flip-Flop with 5V Tolerant Inputs

74LCX74
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
PIN No
1, 13
2, 12
3, 11
4, 10
5, 9
6, 8
7
14
SYMBOL
1CLR, 2CLR
1D, 2D
1CK, 2CK
1PR, 2PR
1Q, 2Q
1Q, 2Q
GND
V_CC
TRUTH TABLE
CLR
L
H
L
H
H
H
X : Don’t Care
INPUTS
PR
D
H
X
L
X
L
X
H
L
H
H
H
X
NAME AND FUNCTION
Asynchronous Reset - Direct Input
Data Inputs
Clock Input (LOW to HIGH, Edge Triggered)
Asynchronous Set - Direct Input
True Flip-Flop Outputs
Complement Flip-Flop Outputs
Ground (0V)
Positive Supply Voltage
OUTPUTS
CK
Q
Q
X
L
H
X
H
L
X
H
H
L
H
H
L
Q_n
Q_n
FUNCTION
CLEAR
PRESET
NO CHANGE
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