CD54AC245_07 Datasheet, PDF (2/16 Pages) Texas Instruments – Octal-Bus Transceiver Three-State, Non-Inverting

Functional Diagram
2
A0
3
A1
4
A2
5
A3
6
A4
7
A5
8
A6
9
A7
1
DIR
19
OE
CD54/74AC245, CD54/74ACT245
18
B0
17
B1
16
B2
15
B3
14
B4
13
B5
12
B6
11
B7
TRUTH TABLE
CONTROL INPUTS
OE
DIR
OPERATION
L
L
B Data to A Bus
L
H
A Data to B Bus
H
X
Isolation
H = High Level, L = Low Level, X = Irrelevant
To prevent excess currents in the High-Z (isolation) modes, all I/O
terminals should be terminated with 10kΩ to 1MΩ resistors.
2