CD74FCT540 Datasheet, PDF (2/7 Pages) Texas Instruments – BiCMOS FCT Interface Logic, Octal Buffers/Line Drivers, Three-State

Functional Diagram
CD74FCT540, CD74FCT541
A0
A1
A2
A3
A0
A1
A2
A3
OE1
OE2
2
3
4
5
6
7
8
9
1
541 540
18
Y0 Y0
17
Y1 Y1
16
Y2 Y2
15
Y3 Y3
14
Y4 Y4
13
Y5 Y5
12
Y6 Y6
11
Y7 Y7
19
GND = PIN 10
V_CC = PIN 20
INPUTS
OE1
OE2
L
L
H
X
X
H
L
L
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = HIGH Impedance
IEC Logic Symbol
CD74FCT540
1
19 EN
2
18
3
17
4
16
5
15
6
14
7
13
8
12
9
11
TRUTH TABLE (Note 1)
OUTPUTS
A_n
CD74FCT540
CD74FCT541
H
L
H
X
Z
Z
X
Z
Z
L
H
L
CD74FCT541
1
19 EN
2
18
3
17
4
16
5
15
6
14
7
13
8
12
9
11
8-2