MC74LCX245DTG Datasheet, PDF (2/9 Pages) ON Semiconductor – Low-Voltage CMOS Octal Transceiver

MC74LCX245
V_CC OE B0 B1 B2 B3 B4 B5 B6 B7
20 19 18 17 16 15 14 13 12 11
1 2 3 4 5 6 7 8 9 10
T/R A0 A1 A2 A3 A4 A5 A6 A7 GND
19
12
20
11
QFN
PIN #1
10
2
9
Figure 1. Pinout (Top View)
PIN NAMES
PINS
FUNCTION
OE
T/R
A0−A7
B0−B7
Output Enable Input
Transmit/Receive Input
Side A 3−State Inputs or 3−State Outputs
Side B 3−State Inputs or 3−StateOutputs
TRUTH TABLE
INPUTS
OE
T/R
L
L
L
H
H
X
OPERATING MODE
Non−Inverting
B Data to A Bus
A Data to B Bus
Z
H = High Voltage Level
L = Low Voltage Level
Z = High Impedance State
X = High or Low Voltage Level and Transitions are Acceptable
For I_CC reasons, Do Not Float Inputs
OE 19
T/R 1
2
A0
3
A1
4
A2
5
A3
6
A4
7
A5
8
A6
9
A7
18
B0
17
B1
16
B2
15
B3
14
B4
13
B5
12
B6
11
B7
Figure 2. Logic Diagram
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