74LVC138A Philips, 74LVC138A Datasheet - Page 3

• Manufacturer Part Number: 74LVC138A
• Description: 3-to-8 line decoder/demultiplexer; inverting
• Manufacturer: Philips

Philips Semiconductors
PIN DESCRIPTION
LOGIC SYMBOL (IEEE/IEC)
FUNCTION TABLE
NOTES:
H = HIGH voltage level
L = LOW voltage level
X = don’t care
1998 Apr 28
15, 14, 13, 12,
PIN NUMBER
1, 2, 3
4, 5
6
11, 10, 9, 7
8
16
3-to-8 line decoder/demultiplexer; inverting
E
H
X
X
L
L
L
L
L
L
L
L
1
E
H
X
X
L
L
L
L
L
L
L
L
1
2
3
4
5
6
2
A
E
E
Y
GND
V
SYMBOL
0
1
3
0
CC
0
2
, E
to A
to Y
&
DX
(a)
2
E
2
7
X
X
H
H
H
H
H
H
H
H
L
3
0
1
2
3
4
5
6
7
INPUTS
Address inputs
Enable inputs (active LOW)
Enable inputs (active HIGH)
Outputs
Ground (0 V)
Positive supply voltage
15
14
13
12
11
10
9
7
A
X
X
X
H
H
H
H
L
L
L
L
1
2
3
4
5
6
0
NAME AND FUNCTION
1
2
4
&
X/Y
(b)
EN
A
H
H
H
H
X
X
X
L
L
L
L
SV00555
0
1
2
3
4
5
6
7
1
15
14
13
12
11
10
9
7
A
X
X
X
H
H
H
H
L
L
L
L
2
Y
H
H
H
H
H
H
H
H
H
H
L
0
3
FUNCTIONAL DIAGRAM
Y
H
H
H
H
H
H
H
H
H
H
L
1
1
2
3
4
5
6
Y
H
H
H
H
H
H
H
H
H
H
L
A
A
A
2
E
E
E
1
2
3
1
2
3
DECODER
3-to-8
Y
H
H
H
H
H
H
H
H
H
H
L
OUTPUTS
3
Y
H
H
H
H
H
H
H
H
H
H
L
4
ENABLE
EXITING
Y
H
H
H
H
H
H
H
H
H
H
L
5
74LVC138A
Product specification
Y
Y
Y
Y
Y
Y
Y
Y
Y
SV00556
H
H
H
H
H
H
H
H
H
H
L
6
0
1
2
3
4
5
7
6
15
14
13
12
11
10
9
7
Y
H
H
H
H
H
H
H
H
H
H
L
7