Q. When the inputs of a two input logic gate are $0$ and $0$, the output is $1.$ When the inputs are $1$ and $0$ the output is $0.$ The logic gate is of the type
ManipalManipal 2012Semiconductor Electronics: Materials Devices and Simple Circuits
Solution:
NOR gate is obtained when the output of OR gate is made as the input of NOT gate. Boolean expression for NOR gate is
$Y=\overline{A+B}$
Symbol of NOR gate
$A$
$B$
$C$
0
0
1
1
0
0
0
1
0
1
1
0
| $A$ | $B$ | $C$ |
|---|---|---|
| 0 | 0 | 1 |
| 1 | 0 | 0 |
| 0 | 1 | 0 |
| 1 | 1 | 0 |