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Logic Gates Explained
- 1. Submitted To: Submitted By: Prof. Kuldeep Kumar Swarnkar Shubham dwivedi
- 2. What is a logic gate? A Logic gate is a circuit having one or more inputs and only one output. The output is at logic level 0 or 1 for the definite conditions of input logic levels. Logic gate Input OUTPUT
- 3. Classification OF LOGIC GATE Logic Gates Basic Gates NOT Gate AND Gate OR gate Universal Gates NAND Gate NOR Gate Special Function Gates EX OR Gate EX NOR Gate
- 4. OR GATE The OR gate is an electronic circuit that gives a high output (1) if one or more of its inputs are high. A plus (+) is used to show the OR operation.
- 5. AND GATE The AND gate is an electronic circuit that gives a high output (1) only if all its inputs are high SYMBOL
- 6. NOT GATE The NOT gate is an electronic circuit that produces an inverted version of the input at its output. It is also known as an inverter
- 7. NAND GATE This is a NOT-AND gate which is equal to an AND gate followed by a NOT gate. The outputs of all NAND gates are high if any of the inputs are low. The symbol is an AND gate with a small circle on the output. The small circle represents inversion
- 8. NOR GATE This is a NOT-OR gate which is equal to an OR gate followed by a NOT gate. The outputs of all NOR gates are low if any of the inputs are high.The symbol is an OR gate with a small circle on the output. The small circle represents inversion.
- 9. EX-OR GATE X=A B EX-OR GATE In two input EX-OR gate, output becomes 1 when two inputs are dissimilar. If the both levels of the two inputs are similar (i.e. Both 0 or Both 1 ) output becomes 0. Truth table
- 10. EX-NOR GATE X=A B EX-NOR GATE In two input EX-NOR gate, output becomes 1 when two inputs are similar (i.e. Both 0 or Both 1 ). If the both levels of the two inputs are dissimilar output becomes 0. Truth Table