DM74LS126AM datasheet(1/4 Pages) NSC

No de pièce	DM74LS126AM

Description	Quad TRI-STATE Buffer

PDF	4 Pages

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Fabricant	NSC [National Semiconductor (TI)]

Site Internet	http://www.national.com

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TLF6388

September 1991

DM74LS126A Quad TRI-STATE

Buffer

General Description

This device contains four independent gates each of which

performs a non-inverting buffer function The outputs have

the TRI-STATE feature When enabled the outputs exhibit

the low impedance characteristics of a standard LS output

with additional drive capability to permit the driving of bus

lines without external resistors When disabled both the

output transistors are turned off presenting a high-imped-

ance state to the bus line Thus the output will act neither as

a significant load nor as a driver To minimize the possibility

that two outputs will attempt to take a common bus to oppo-

site logic levels the disable time is shorter than the enable

time of the outputs

Connection Diagram

Dual-In-Line Package

TLF6388 – 1

Order Number DM74LS126AM or DM74LS126AN

See NS Package Number M14A or N14A

Function Table

Y e A

Inputs

Output

AC

Y

LH

L

HH

H

X

L

Hi-Z

H e High Logic Level

L e Low Logic Level

X e Either Low or High Logic Level

Hi-Z e TRI-STATE (Outputs are disabled)

TRI-STATE

is a registered trademark of National Semiconductor Corporation

C1995 National Semiconductor Corporation

RRD-B30M105Printed in U S A

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