13. INPUT
A B
OUTPUT
A + B
0 0 0
0 1 1
1 0 1
1 1 1
Truth Table
Input A Input B
Output
Q
0 0 1
0 1 1
1 0 1
1 1 0
B
1
1
B’
A
A
B
1
1
B’
OR
NAND
Q
Q
2:1
2:1
Cont….
14. Truth Table
Input A Input B
Outpu
t Q
0 0 1
0 1 0
1 0 0
1 1 0
Truth Table
Input A Input B
Output
Q
0 0 0
0 1 1
1 0 1
1 1 0
B’
0
B
B’
Q
Q
A
A
B’
0
B
B’
NOR
XOR
2:1
2:1
Cont….
15. Truth Table
Input A Input B
Output
Q
0 0 1
0 1 0
1 0 0
1 1 1
B’
B
B’
B
A
Q
XNOR
2:1
Cont….