Excitation tables: T flip-flop
Characteristic table:
T flip-flop
T
Q
Q
+
Operation
0
0
0
hold
0
1
1
hold
1
0
1
toggle
1
1
0
toggle
Excitation table:
Q
Q
+
T
0
0
0
How do we keep the current value?
0
1
Hold: T = 0
1
0
1
1
0