tc74hct138af TOSHIBA Semiconductor CORPORATION, tc74hct138af Datasheet - Page 2

• Manufacturer Part Number: tc74hct138af
• Description: 3-to-8 Line Decoder
• Manufacturer: TOSHIBA Semiconductor CORPORATION

IEC Logic Symbol
Truth Table
Logic Diagram
X: Don’t care
G1
H
H
H
H
H
H
H
H
L
X
X
Enable
G
H
X
X
2
L
L
L
L
L
L
L
L
A
G
X
X
H
L
L
L
L
L
L
L
L
2
B
Inputs
C
X
X
X
H
H
H
H
L
L
L
L
Select
H
H
H
H
B
X
X
X
L
L
L
L
A
X
X
X
H
H
H
H
L
L
L
L
Y
H
H
H
H
H
H
H
H
H
H
L
0
Y
H
H
H
H
H
H
H
H
H
H
L
1
2
Y
H
H
H
H
H
H
H
H
H
H
L
2
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
TC74HCT138AP/AF/AFN
Y
H
H
H
H
H
H
H
H
H
H
L
5
Y
H
H
H
H
H
H
H
H
H
H
L
6
Y
H
H
H
H
H
H
H
H
H
H
L
7
2007-10-01
Selected
Output
None
None
None
Y
Y
Y
Y
Y
Y
Y
Y
6
0
1
2
3
4
5
7