74F245SJ Ver la hoja de datos (PDF) - Fairchild Semiconductor

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74F245SJ

Octal Bidirectional Transceiver with 3-STATE Outputs

Fairchild Semiconductor 

Connection Diagram

Unit Loading/Fan Out

Pin Names

Description

U.L.

HIGH/LOW

Input IIH/IIL

Output IOH/IOL

OE

Output Enable Input (Active LOW) 1.0/2.0

20 PA/1.2 mA

T/R

Transmit/Receive Input

1.0/2.0

20 PA/1.2 mA

A0–A7

Side A Inputs or

3-STATE Outputs

3.5/1.083

70 PA/0.65 mA

150/40(38.3) 3 mA/24 mA (20 mA)

B0–B7

Side B Inputs or

3-STATE Outputs

3.5/1.083

70 PA/0.65 mA

600/106.6(80) 12 mA/64 mA (48 mA)

Truth Table

H HIGH Voltage Level

L LOW Voltage Level

X Immaterial

Inputs

OE

T/R

L

L

L

H

H

X

Output

Bus B Data to Bus A

Bus A Data to Bus B

High Z State

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