74lcxr2245 Fairchild Semiconductor, 74lcxr2245 Datasheet - Page 2

• Manufacturer Part Number: 74lcxr2245
• Description: 74lcxr2245 Low Voltage Bidirectional Transceiver With 5v Tolerant Inputs And Outputs And 26w Series Resistors On Both A And B Ports
• Manufacturer: Fairchild Semiconductor

www.fairchildsemi.com
Logic Symbol
Pin Descriptions
Truth Table
H
L
X
Z
Note 3: Unused bus terminals during HIGH Z State must be held HIGH or LOW.
Logic Diagram
LOW Voltage Level
High Impedance
HIGH Voltage Level
Immaterial
OE
T/R
A
B
0
0
–A
–B
OE
Pin Names
H
L
L
7
7
Inputs
T/R
H
X
L
Output Enable Input
Transmit/Receive Input
Side A Inputs or 3-STATE Outputs
Side B Inputs or 3-STATE Outputs
Bus B
Bus A
HIGH Z State on A
0
0
– B
– A
7
7
2
Data to Bus A
Data to Bus B
Connection Diagram
Description
0
Outputs
– A
7
, B
0
0
0
– A
– B
– B
7
7
7
(Note 3)