Question
Download Solution PDFA table which will help to understand behavior of logic gates is known as _______.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFA table which will help to understand behavior of logic gates is known as truth table.
Concept:
- Logic gate: The digital circuit that can be analyzed with the help of Boolean algebra is called a logic gate or logic circuit.
- A logic gate has two or more inputs but only one output.
- Logic gates work on the truth table.
Additional Information
For Example,
AND Gate: The Logic AND Gate is a digital logic circuit whose output HIGH only when all the inputs are 1 (HIGH) otherwise output will be LOW.
A |
B |
C = A⋅ B |
---|---|---|
0 |
0 |
0 |
0 |
1 |
0 |
1 |
0 |
0 |
1 |
1 |
1 |
OR Gate: The Logic OR Gate is a digital logic circuit whose output goes HIGH only when any one or more than one of its inputs is HIGH.
A |
B |
C = A + B |
---|---|---|
0 |
0 |
0 |
0 |
1 |
1 |
1 |
0 |
1 |
1 |
1 |
1 |
NOT Gate: The Logic NOT Gate is the most basic of all the logic gates and is often referred to as an Inverting Buffer or simply an Inverter.
\(Y = \bar A\)
A |
B |
---|---|
0 |
1 |
1 |
0 |
NAND Gate: The logic Gate is obtained after adding NOT Gate after AND Gate.
\(Y = \overline {\left( {A \cdot B} \right)} \)
A |
B |
Y |
---|---|---|
0 |
0 |
1 |
0 |
1 |
1 |
1 |
0 |
1 |
1 |
1 |
0 |
NOR Gate: The logic Gate is obtained after adding NOT Gate after OR Gate.
\(Y = \overline {\left( {A + B} \right)} \)
A |
B |
Y |
---|---|---|
0 |
0 |
1 |
0 |
1 |
0 |
1 |
0 |
0 |
1 |
1 |
0 |
XOR Gate: output goes HIGH to a logic level 1 only when both of its inputs are different. If inputs are the same, the output will be LOW '0'.
\(Y = A \cdot \bar B + \bar A \cdot B\)
Truth Table of XOR Gate:
A |
B |
Y |
---|---|---|
0 |
0 |
0 |
0 |
1 |
1 |
1 |
0 |
1 |
1 |
1 |
0 |
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