Lab of Experiment
Equivalent Logic Gates
Chia-Chun Tsai
Equivalent Logic Gates

Some logic gates can be combined that the
function (e.g. true table) is completely
equivalent to be another gate.
Chia-Chun Tsai
2
1
Equivalent NOT Gates
A
0
1
Y=/A
1
0
Chia-Chun Tsai
Equivalent Buffers
Chia-Chun Tsai
3
A
0
1
Y=A
0
1
4
2
5-input AND Gate
Chia-Chun Tsai
5
5-input OR Gate
Chia-Chun Tsai
6
3
5-input XOR Gate
Chia-Chun Tsai
7
3-input NAND Gate
Chia-Chun Tsai
8
4
3-input NOR Gate
Chia-Chun Tsai
2-input AND Gate
Chia-Chun Tsai
9
A
0
0
1
1
B
0
1
0
1
Y=AB
0
0
0
1
10
5
2-input OR Gate
A
0
0
1
1
B
0
1
0
1
Chia-Chun Tsai
Y=A+B
0
1
1
1
11
2-input XOR Gate
A
0
0
1
1
Chia-Chun Tsai
B
0
1
0
1
Y=A/B+B/A
0
1
1
0
12
6
Equivalent Logic Function
Chia-Chun Tsai
13
7