TC74VHCT138AF View Datasheet(PDF) - Toshiba
Part Name
Description
Manufacturer
TC74VHCT138AF Datasheet PDF : 10 Pages
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Pin Assignment
TC74VHCT138AF/AFN/AFT/AFK
A1
B2
C3
G2A 4
G2B 5
G1 6
Y7 7
GND 8
(top view)
IEC Logic Symbol
16 VCC
15 Y0
14 Y1
13 Y2
12 Y3
11 Y4
10 Y5
9 Y6
A (1)
B (2)
C (3)
G1 (6)
G2A (4)
G2B (5)
BIN/OCT
1
0
2
1
4
2
3
&
4
5
EN
6
7
(15) Y0
(14) Y1
(13) Y2
(12) Y3
(11) Y4
(10) Y5
(9) Y6
(7) Y7
A (1)
B (2)
C (3)
G1 (6)
G2A (4)
G2B (5)
DMUX
0
0
G0
1
7
2
2
3
&
4
5
6
7
(15) Y0
(14) Y1
(13) Y2
(12) Y3
(11) Y4
(10) Y5
(9) Y6
(7) Y7
Truth Table
Inputs
Enable
Select
G1 G2A G2B C
B
A
L
X
X
X
X
X
X
H
X
X
X
X
X
X
H
X
X
X
H
L
L
L
L
L
H
L
L
L
L
H
H
L
L
L
H
L
H
L
L
L
H
H
H
L
L
H
L
L
H
L
L
H
L
H
H
L
L
H
H
L
H
L
L
H
H
H
X: Don’t care
Outputs
Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
L
H
H
H
H
H
H
H
H
L
Selected
Output
None
None
None
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
2
2007-10-01
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