74LCXR2245_08 Datasheet, PDF (2/12 Pages) Fairchild Semiconductor – 74LCXR2245 Low Voltage Bidirectional Transceiver with 5V Tolerant Inputs

Connection Diagram
Logic Symbol
Pin Description
Pin Names
Description
OE
Output Enable Input
T/R
Transmit/Receive Input
A₀–A₇
B₀–B₇
Side A Inputs or 3-STATE Outputs
Side B Inputs or 3-STATE Outputs
Logic Diagram
Truth Table
Inputs
OE T/R
Outputs
L
L Bus B₀ – B₇ Data to Bus A₀ – A₇
L
H Bus A₀ – A₇ Data to Bus B₀ – B₇
H
X HIGH Z State on A₀ – A₇, B₀ – B₇₍₂₎
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
Note:
2. Unused bus terminals during HIGH Z State must be
held HIGH or LOW.
©2000 Fairchild Semiconductor Corporation
74LCXR2245 Rev. 1.2.0
2
www.fairchildsemi.com