=

2k

2k + 1

LOGIC-IDENTITY ELEMENT

EVEN-PARITY ELEMENT

ODD-PARITY ELEMENT

The output is active (low) if

all inputs stand at the same

logic level (i.e., A = B).

The output is active (low) if

an even number of inputs

(i.e., 0 or 2) are active.

The output is active (high) if

an odd number of inputs

(i.e., only 1 of the 2) are

active.

= 1

EXCLUSIVE OR

These are five equivalent exclusive-OR symbols valid for an SN74LVC2G86 gate in positive logic; negation may be shown at any two ports.

SN74LVC2G86

SCES360I – AUGUST 2001 – REVISED DECEMBER 2013

www.ti.com

These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam

during storage or handling to prevent electrostatic damage to the MOS gates.

Function Table

(Each Gate)

INPUTS

OUTPUT

Y

A

B

L

L

L

L

H

H

H

L

H

H

H

L

EXCLUSIVE-OR LOGIC

An exclusive-OR gate has many applications, some of which can be represented better by alternative logic

symbols.

2

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