Exclusive OR Gate. Logically, the exclusive OR (XOR) operation can be seen as either of the following operations:exclusive OR (XOR) 1. A AND NOT B OR.

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Presentation transcript:

Exclusive OR Gate

Logically, the exclusive OR (XOR) operation can be seen as either of the following operations:exclusive OR (XOR) 1. A AND NOT B OR B AND NOT A 2. A OR B AND NOT A AND B which can be implemented by the gate arrangements shown. They can also be implemented using NAND gates only.NAND

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Examples 4-16 Two numbers each of two bits; i.e. x,x, and y, y. Design a logic to give High output whenever both two-bit numbers are equal.

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Parity Generator 4 Inputs & 5 Outputs

Even Parity Checker 5 Inputs & One Output

Enable & Disable Enable Logic A 1 A 1 A 0 A 0

Enable & Disable Disable Logic A 0 A 0 A 1 A 1

Example 4-21 Design a logic circuit that will allow a signal to pass an output only when control inputs B and C both are high.