tc74vhc238f TOSHIBA Semiconductor CORPORATION, tc74vhc238f Datasheet - Page 2

• Manufacturer Part Number: tc74vhc238f
• Description: 3-to-8 Line Decoder
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Pin Assignment
IEC Logic Symbol
Truth Table
X: Don’t care
G
G
G1
H
H
H
H
H
H
H
H
L
X
X
2A
2B
G1
A
B
C
G
G
GND
2A
2B
G1
Enable
Y7
G
C
A
B
(1)
(2)
(3)
(6)
(4)
(5)
H
X
X
2
L
L
L
L
L
L
L
L
A
1
2
3
4
5
6
7
8
G
&
1
2
4
X
X
H
L
L
L
L
L
L
L
L
2
B
Inputs
BIN/OCT
EN
(top view)
C
X
X
X
H
H
H
H
L
L
L
L
Select
0
1
2
3
4
5
6
7
H
H
H
H
B
X
X
X
L
L
L
L
16
15
14
13
12
11
10
9
(15)
(14)
(13)
(12)
(11)
(10)
(9)
(7)
A
X
X
X
H
H
H
H
L
L
L
L
V
Y0
Y1
Y2
Y3
Y4
Y5
Y6
CC
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y0
H
L
L
L
L
L
L
L
L
L
L
Y1
H
L
L
L
L
L
L
L
L
L
L
2
Y2
H
L
L
L
L
L
L
L
L
L
L
G
G
2A
2B
G1
Y3
C
A
B
H
L
L
L
L
L
L
L
L
L
L
Outputs
(1)
(2)
(3)
(6)
(4)
(5)
Y4
H
L
L
L
L
L
L
L
L
L
L
TC74VHC238F/FN/FT/FK
&
1
2
Y5
H
L
L
L
L
L
L
L
L
L
L
G
DMUX
0
7
Y6
H
L
L
L
L
L
L
L
L
L
L
0
1
2
3
4
5
6
7
Y7
H
L
L
L
L
L
L
L
L
L
L
(15)
(14)
(13)
(12)
(11)
(10)
(9)
(7)
2007-01-15
Selected
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Output
None
None
None
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7