Elenco Understanding Logic Gates Bedienungsanleitung PDF herunterladen (Seite 13)

U20

Exclusive OR (XOR) Gate

XOR gates are used in digital logic circuits to perform a comparison. When the inputs are mutually exclusive

(i.e. different), then the output is high (1). When the inputs are the same, then the output is low (0).

This circuit demonstrates how the Exclusive

OR (XOR) Gate (U20) works. Connect one

end of the red and black jumper wires to the

A & B inputs on U20 and the loose ends to

either low voltage (denoted as a “0”) or high

voltage (denoted as a “1”). If input A and

input B are exclusive (i.e. different, one

green LED is on and the other green LED is

off), then the Y output on U20 will be high

(1), and the red LED (D1) will be on.

Input (A) Input (B) Output (Q)

0 0 0

0 1 1

1 0 1

1 1 0

1 2 ... 8 9 10 11 12 13 14 15 16

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Elenco Understanding Logic Gates Bedienungsanleitung Seite 13