74LVX163 datasheet(1/8 Pages) NSC

Il numero della parte	74LVX163

Spiegazioni elettronici	Low Voltage Synchronous Binary Counter with Synchronous Clear

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Produttore elettronici	NSC [National Semiconductor (TI)]

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TLF12157

December 1996

74LVX163

Low Voltage Synchronous Binary Counter with

Synchronous Clear

General Description

The LVX163 is a synchronous modulo-16 binary counter

This device is synchronously presettable for application in

programmable dividers and has two types of Count Enable

inputs plus a Terminal Count output for versatility in forming

multistage counters The CLK input is active on the rising

edge Both PE and CLR inputs are active on low logic lev-

els Presetting is synchronous to rising edge of CLK and the

Clear function of the LVX163 is synchronous to CLK Two

enable inputs (ENP and ENT) and Carry Output are provid-

ed to enable easy cascading of counters which facilitates

easy implementation of n-bit counters without using external

gates

The inputs tolerate voltages up to 7V allowing the interface

of 5V systems to 3V systems

Features

Y

Input voltage level translation from 5V to 3V

Y

Ideal for low powerlow noise 33V applications

Y

Available in SOIC JEDEC

SOIC EIAJ

and TSSOP

packages

Y

Guaranteed simultaneous switching noise and dynamic

threshold performance

Logic Symbols

TLF12157 – 1

IEEEIEC

TLF12157 – 2

Connection Diagram

Pin Assignment for

TSSOP and SOIC

TLF12157 – 3

SOIC JEDEC

SOIC EIAJ

TSSOP

Order Number

74LVX163M

74LVX163SJ

74LVX163MTC

74LVX163MX

74LVX163SJX

74LVX163MTCX

See NS Package

M16A

M16D

MTC16

Number

Description

Names

CEP

Count Enable Parallel Input

CET

Count Enable Trickle Input

CP

Clock Pulse Input

MR

Synchronous Master Reset Input

P0–P3

Parallel Data Inputs

PE

Parallel Enable Inputs

Q0–Q3

Flip-Flop Outputs

TC

Terminal Count Output

C1996 National Semiconductor Corporation

RRD-B30M17Printed in U S A

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