Write the truth table for a NAND gate ...

NCERT Class XII Chapter
Semiconductor Electronics
Questions With Solutions

Question : 16 of 19

Marks: +1, -0

Write the truth table for a NAND gate connected as given in following figure.

Hence identify the exact logic operation carried out by this circuit.

Solution:

The Boolean expression for NAND gate will be

Y =

\overline{(A \cdot A)}

\overset{-}{A}+\overset{-}{A}

or Y =

\overset{-}{A}

Truth table

A	Y = $\overset{-}{A}$
0	1
1	0

The circuit operates like a NOT gate.

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