Wednesday, April 10, 2013
NAND
When we put NOT Gate in the output of an AND
Gate, we get NAND gate. A NAND gate has two or more inputs but
only one output. The NAND function is the complement of AND functions.
It produces a value of false if and only if both of its operands are true. In other words, it produces a
value of true if and only if
at least one of its operands is false.
- If A and B are two input then output is given by
| A |
B |
Y |
| F |
F |
T |
| F |
T |
T |
| T |
F |
T |
| T |
T |
F |
Truth
table for NAND Gate
INPUT
|
OUTPUT
|
|
A
|
B
|
Y = A
NAND B
|
0
|
0
|
1
|
0
|
1
|
1
|
1
|
0
|
1
|
1
|
1
|
0
|
SYMBOL
