74FR74 Datasheet, PDF (2/8 Pages) Fairchild Semiconductor – Dual D-Type Flip-Flop

Logic Symbols
74FR74
74FR1074
Pin Descriptions
Pin Names
D_n
CP_n
S_Dn
C_Dn
Q_n
Q_n
Description
Data Inputs
Clock Inputs
Asynchronous Set Inputs
Asynchronous Clear Inputs
True Output
Complementary Output
Truth Tables
74FR74
Inputs
Outputs
SD
CD
CP
D
Q
Q
L
H
X
X
H
L
H
L
X
X
L
H
L
H
H
L
H
H
^X
X
H
L
H
H
L
H
L
H
H
H
L
X
Q₀
Q₀
H = HIGH Voltage Level
L = LOW Voltage Level
Z = High Impedance
X = Immaterial
= Rising Edge
Q₀ = Previous Q(Q) before LOW-to-HIGH Clock Transition
74FR1074
Inputs
Outputs
SD
CD
CP
D
Q
Q
L
H
X
X
H
L
H
L
X
X
L
H
L
H
H
L
H
H
^X
X
H
L
H
H
L
H
L
H
H
H
L
X
Q₀
Q₀
H = HIGH Voltage Level
L = LOW Voltage Level
Z = High Impedance
X = Immaterial
= Falling Edge
Q₀ = Previous Q(Q) before HIGH-to-LOW Clock Transition
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