Philips hef4531b DATASHEETS

INTEGRATED CIRCUITS

DATA SH EET

For a complete data sheet, please also download:

•The IC04 LOCMOS HE4000B Logic
Family Specifications HEF, HEC

•The IC04 LOCMOS HE4000B Logic
Package Outlines/Information HEF, HEC

HEF4531B
MSI

13-input parity checker/generator

Product specification
File under Integrated Circuits, IC04

January 1995

Philips Semiconductors Product specification

13-input parity checker/generator

DESCRIPTION

The HEF4531B is a parity checker/generator with 13 parity
inputs (I0to I12) and a parity output (O). When the number
of parity inputs that are HIGH is even, the output is LOW.
When the number of parity inputs that are HIGH is odd, the
output is HIGH. For words of 12 bits or less, the output can
be used to generate either odd or even parity by
appropriate termination of the unused parity input(s). For
words of 14 or more bits, the devices can be cascaded by
connecting the output of one device to any parity input of
another device. When cascading devices, it is
recommended that the output of one device be connected
to the I
to the output from the I12input than from any other input
(I0to I11).

input of the other device since there is less delay

12

HEF4531B

MSI

Fig.1 Functional diagram.

Fig.2 Pinning diagram.

January 1995 2

HEF4531BP(N): 16-lead DIL; plastic

(SOT38-1)

HEF4531BD(F): 16-lead DIL; ceramic (cerdip)

(SOT74)

HEF4531BT(D): 16-lead SO; plastic

(SOT109-1)

( ): Package Designator North America

FAMILY DATA, IDDLIMITS category MSI

See Family Specifications