MM54HCT147 datasheet(1/4 Pages) NSC

No de pièce	MM54HCT147

Description	10-to-4 Line Priority Encoder

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Fabricant	NSC [National Semiconductor (TI)]

Site Internet	http://www.national.com

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TLF9397

PRELIMINARY

November 1995

MM54HCT147MM74HCT147

10-to-4 Line Priority Encoder

General Description

This priority encoder utilizes advanced silicon-gate CMOS

technology It has the high noise immunity and low power

consumption typical of CMOS circuits as well as the speeds

and output drive similar to LS-TTL

This priority encoder accepts 9 input request lines 1 – 9 and

outputs 4 line BCD The priority encoding ensures that only

the highest order data line is encoded The implied decimal

zero condition requires no input condition as zero is encod-

ed when all nine data lines are at a high logic level All data

inputs and outputs are active at low logic level

All inputs are protected from damage due to static dis-

charge by internal diode clamps to VCC and ground

MM54HCTMM74HCT devices are intended to interface be-

tween TTL and NMOS components and standard CMOS

devices These parts are also plug in replacements for LS-

TTL devices and can be used to reduce power comsump-

tion in existing designs

Features

Y

Low quiescent power consumption

40 mW maximum at 25 C

Y

High speed 13 ns propagation delay (typical)

Y

Very low input current 10b5 mA typical

Connection and Logic Diagrams

Dual-In-Line Package

TLF9397 – 1

Order Number MM54HCT147 or MM74HCT147

Truth Table

Inputs

Outputs

123456789

D

C

B

A

HHHHHHHHHHHHH

XXXXXXXX

L

H

L

XXXXXXX

LHLH

H

XXXXXX

LH

H

L

XXXXX

L

HHHH

L

H

XXXX

L

HHHH

HLHL

X

L

HHHHHH

L

H

X

L

HHHHHHHH

L

X

L

HHHHHHHHH

L

H

L

HHHHHHHHHHH

L

H e High Logic Level L e Low Logic Level X e Irrelevant

TLF9397 – 2

C1995 National Semiconductor Corporation

RRD-B30M115Printed in U S A

Numéro de pièce similaire - MM54HCT147

Fabricant	No de pièce	Fiches technique	Description
National Semiconductor ...	MM54HCT148	215Kb / 5P	8-3 Line Priority Encoder

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Description similaire - MM54HCT147

Fabricant	No de pièce	Fiches technique	Description
National Semiconductor ...	MM54HC147	108Kb / 4P	10-to-4 Line Priority Encoder
Hitachi Semiconductor	HD74HC147	43Kb / 8P	10-to-4-line Priority Encoder
NXP Semiconductors	74HC147	120Kb / 23P	10-to-4 line priority encoder 2003 Oct 30
Renesas Technology Corp	HD74HC147	77Kb / 6P	10-to-4-line Priority Encoder
STMicroelectronics	M54HC147	241Kb / 10P	10 TO 4 LINE PRIORITY ENCODER
NXP Semiconductors	74HC147N	43Kb / 7P	10-TO-4 LINE PRIORITY ENCODER December 1990
STMicroelectronics	HCC40147B	275Kb / 12P	10 TO 4 LINE BCD PRIORITY ENCODER
Intersil Corporation	CD40147BMS	81Kb / 8P	10 Line to 4 Line BCD Priority Encoder December 1992
Texas Instruments	CD40147B	436Kb / 10P	[Old version datasheet] 10-LINE TO 4-LINE BCD PRIORITY ENCODER
Intersil Corporation	ACS147MS	39Kb / 2P	Radiation Hardened 10-to-4 Line Priority Encoder July 1999

More results

MM54HCT147 Fiches technique(PDF) 1 Page - National Semiconductor (TI)

MM54HCT147 Fiches technique(HTML) 1 Page - National Semiconductor (TI)

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