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MC74VHCT138AD データシートの表示(PDF) - ON Semiconductor

部品番号
コンポーネント説明
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MC74VHCT138AD
ON-Semiconductor
ON Semiconductor ON-Semiconductor
MC74VHCT138AD Datasheet PDF : 8 Pages
1 2 3 4 5 6 7 8
MC74VHCT138A
FUNCTION TABLE
Inputs
Outputs
E3 E2 E1 A2 A1 A0 Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7
X X H XXX HHH HHHH H
X H X XXX HHH HHHH H
L X X XXX HHH HHHH H
H L L LLL LHHHHHHH
H L L LLHH L HHHHHH
H L L LHL HH L HHHHH
H L L LHH H H H L H H H H
H L L HLL HHHH L HHH
H L L HLHHHHHH L HH
H L L HHL H H H H H H L H
H L L HHH H H H H H H H L
H = high level (steady state); L = low level (steady state);
X = don’t care
A0 1
SELECT
INPUTS
A1
2
A2 3
ENABLE E3 6
INPUTS E2 5
E1 4
EXPANDED LOGIC DIAGRAM
LOGIC DIAGRAM
15 Y0
14 Y1
13 Y2
12 Y3
11 Y4
10
Y5
9 Y6
7
Y7
ACTIVE–LOW
OUTPUTS
15 Y0
A0 1
A1 2
A2 3
E2 5
E1 4
E3 6
A0 1
A1 2
A2 3
E3 6
E2 5
E1 4
BIN/OCT
1
0
2
1
4
2
3
&
4
5
EN
6
7
IEC LOGIC DIAGRAM
15 Y0
14 Y1
13 Y2
12 Y3
11 Y4
10 Y5
9 Y6
7 Y7
A0 1
A1 2
A2 3
E3 6
E2 5
E1 4
DMUX
0
0
G
0
7
1
2
2
3
&
4
5
6
7
14 Y1
13 Y2
12 Y3
11 Y4
10 Y5
9 Y6
7 Y7
15 Y0
14 Y1
13 Y2
12 Y3
11 Y4
10 Y5
9 Y6
7 Y7
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