These truth tables describe
how the outputs of a given flip flop will be determined by a
combination of inputs. Not shown are Preset and Clear inputs,
which will cause the "Q" outputs to be set high or
low, respectively.
D
Filp-Flop
Q
(t)
Q
(t+1)
D
0
0
0
0
1
1
1
0
0
1
1
1
RS
Filp-Flop
Q
(t)
Q
(t+1)
S
R
0
0
0
X
0
1
1
0
1
0
0
1
1
1
X
0
T
Filp-Flop
Q
(t)
Q
(t+1)
T
0
0
0
0
1
1
1
0
1
1
1
0
JK
Filp-Flop
Q
(t)
Q
(t+1)
J
K
0
0
0
X
0
1
1
X
1
0
X
1
1
1
X
0
X = Don't Care
Q(t) = Present State
Q(t+1) = Next State
