74F245SC datasheet(2/8 Pages) NSC

Teilenummer	74F245SC

Bauteilbeschribung	Octal Bidirectional Transceiver with TRI-STATE Outputs

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Hersteller	NSC [National Semiconductor (TI)]

Direct Link	http://www.national.com

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2 / 8 page

Connection Diagrams

Pin Assignment for

DIP SOIC SSOP and Flatpak

TLF9503 – 1

Pin Assignment

for LCC

TLF9503 – 2

Unit LoadingFan Out

54F74F

Pin Names

Description

UL

Input IIH IIL

HIGHLOW

Output IOH IOL

OE

Output Enable Input (Active LOW)

1020

20 mA b12 mA

TR

TransmitReceive Input

1020

20 mA b12 mA

A0–A7

Side A Inputs or

351083

70 mA b065 mA

TRI-STATE Outputs

15040(383)

b

3 mA24 mA (20 mA)

B0–B7

Side B Inputs or

351083

70 mA b065 mA

TRI-STATE Outputs

6001066(80)

b

12 mA64 mA (48 mA)

Truth Table

Inputs

Output

OE

TR

L

Bus B Data to Bus A

L

H

Bus A Data to Bus B

H

X

High Z State

H e HIGH Voltage Level

L e LOW Voltage Level

X e Immaterial

2

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