100331
Truth Tables
Synchronous Operation
(Each Flip-Flop)
Inputs
D
n
L
H
L
H
X
X
X
CP
n
Outputs
MS
SD
n
L
L
L
L
L
L
L
MR
CD
n
L
L
L
L
L
L
L
Q
n
(t
+
1)
L
H
L
H
Q
n
(t)
Q
n
(t)
Q
n
(t)
D
n
X
X
X
CP
n
X
X
X
Asynchronous Operation
(Each Flip-Flop)
Inputs
CP
C
X
X
X
MS
SD
n
H
L
H
MR
CD
n
L
H
H
Outputs
Q
n
(t
+
1)
H
L
U
L
L
L
H
X
CP
C
L
L
L
X
H
H
=
HIGH Voltage Level
L
=
LOW Voltage Level
X
=
Don’t Care
U
=
Undefined
t
=
Time before CP Positive Transition
t
+
1
=
Time after CP Positive Transition
=
LOW-to-HIGH Transition
Logic Diagram
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