74LCXR2245_05 Datasheet, PDF (2/10 Pages) Fairchild Semiconductor – Low Voltage Bidirectional Transceiver with 5V Tolerant Inputs and Outputs and 26ohm Series Resistors on Both A and B Ports

Logic Symbol
Connection Diagram
Pin Descriptions
Pin Names
OE
T/R
A₀–A₇
B₀–B₇
Description
Output Enable Input
Transmit/Receive Input
Side A Inputs or 3-STATE Outputs
Side B Inputs or 3-STATE Outputs
Truth Table
Inputs
Outputs
OE
T/R
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 (Note 3)
H HIGH Voltage Level
L LOW Voltage Level
X Immaterial
Z High Impedance
Note 3: Unused bus terminals during HIGH Z State must be held HIGH or LOW.
Logic Diagram
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