Combination of NAND gates is shown in the figure. It is equivalent to which gate:
Combination of NAND gates is shown in the figure. It is equivalent to which gate:
NOR gate
AND gate
OR gate
X-OR gate
Solution
The two NAND gates whose two inputs are joined together behave like NOT gates. The truth table can be written as
We see that the output $y$ is ' 1 ' if $A$ or $B$ or both are ' 1 '. Hence it behaves as OR gate.
We see that the output $y$ is ' 1 ' if $A$ or $B$ or both are ' 1 '. Hence it behaves as OR gate.