HEF4753BN datasheet(3/10 Pages) PHILIPS

3 / 10 page

January 1995

Philips Semiconductors

Product speciﬁcation

Universal timer module

HEF4753B

LSI

HEF4753BP(N):

18-lead DIL; plastic

(SOT102-3)

HEF4753BD(N):

18-lead DIL; ceramic (cerdip)

(SOT133)

( ): Package Designator North America

Fig.2 Pinning diagram.

FUNCTION TABLES

Notes

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

2. L = LOW state (the less positive voltage).

INPUTS

OPERATING MODE

LFC

counter

divider

delayed LOW to HIGH edge

delayed HIGH to LOW edge

transient pulse suppression

frequency recognition

LFC

digital pulse duration selector

Programmable 8-bit counter (1)

Note

1. All inputs A to H HIGH is not allowed.

INPUTS ACTIVE LOW

VALUE

E16

F32

G64

128

12-bit predivider

CLOCK FOR PROGRAMMABLE

COUNTER

CP/X

X=1

X =16

X = 256

X = 4096

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