74AHC138 Philips Semiconductors, 74AHC138 Datasheet - Page 4

• Manufacturer Part Number: 74AHC138
• Description: 3-to-8 line decoder/demultiplexer; inverting
• Manufacturer: Philips Semiconductors

Philips Semiconductors
1999 Sep 27
handbook, halfpage
handbook, halfpage
3-to-8 line decoder/demultiplexer; inverting
2
3
4
5
6
1
0
2
&
G
GND
DX
(a)
0
7
A 0
A 1
A 2
E 1
E 2
E 3
Y 7
Fig.1 Pin configuration.
Fig.3 IEC logic symbol.
2
3
4
5
6
7
0
1
1
2
3
4
5
6
7
8
15
14
13
12
11
10
9
7
138
MNA369
2
3
4
5
6
1
16
15
14
13
12
11
10
9
1
2
4
V CC
Y 0
Y 1
Y 2
Y 3
Y 4
Y 5
Y 6
&
X/Y
(b)
MNA371
EN
0
1
2
3
4
5
6
7
13
12
11
10
15
14
9
7
4
handbook, halfpage
handbook, halfpage
1
2
3
4
5
6
A 0
A 1
A 2
E 1
E 2
E 3
1
2
3
4
5
6
DECODER
Fig.4 Functional diagram.
Fig.4 Functional diagram.
E 1
E 2
E 3
3-to-8
Fig.2 Logic symbol.
A 0
A 1
A 2
EXITING
ENABLE
MNA370
Y 0
Y 1
Y 2
Y 3
Y 4
Y 5
Y 6
Y 7
74AHCT138
Product specification
74AHC138;
15
14
13
12
11
10
9
7
MNA372
Y 0
Y 1
Y 2
Y 3
Y 4
Y 5
Y 6
Y 7
15
14
13
12
10
11
9
7