January 1995

2

Philips Semiconductors

Product specification

Quadruple exclusive-OR gate

HEF4070B

gates

DESCRIPTION

The HEF4070B provides the positive quadruple

exclusive-OR function. The outputs are fully buffered for

highest noise immunity and pattern insensitivity of output

impedance.

Fig.1 Functional diagram.

HEF4070BP(N): 14-lead DIL; plastic

(SOT27-1)

HEF4070BD(F): 14-lead DIL; ceramic (cerdip)

(SOT73)

HEF4070BT(D): 14-lead SO; plastic

(SOT108-1)

( ): Package Designator North America

Fig.2 Pinning diagram.

Fig.3 Logic diagram (one gate).

APPLICATION INFORMATION

Some examples of applications for the HEF4070B are:

• Logical comparators

• Parity checkers and generators

See Family Specifications

TRUTH TABLE

Note

1. H = HIGH state (the more positive voltage)

L = LOW state (the less positive voltage)

LL

L

HL

H

LH

H

HH

L