a) Table de vérité pour un afficheur décimal :
Dec | Binaire | |||||||||||
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A | B | C | D | a | b | c | d | e | f | g | ||
0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | |
1 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | |
2 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | 0 | 1 | |
3 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 1 | |
4 | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 1 | |
5 | 0 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | |
6 | 0 | 1 | 1 | 0 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | |
7 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | |
8 | 1 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | |
9 | 1 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | |
10 | 1 | 0 | 1 | 0 | X | X | X | X | X | X | X | |
11 | 1 | 0 | 1 | 1 | X | X | X | X | X | X | X | |
12 | 1 | 1 | 0 | 0 | X | X | X | X | X | X | X | |
13 | 1 | 1 | 0 | 1 | X | X | X | X | X | X | X | |
14 | 1 | 1 | 1 | 0 | X | X | X | X | X | X | X | |
15 | 1 | 1 | 1 | 1 | X | X | X | X | X | X | X |
Tableaux de Karnaught :
a : |
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b : |
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_ _ _ _ b = (B + C + D) . (B + C + D) |
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c : |
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_ c= (B + C + D) |
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d : |
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_ _ _ _ _ d= (B + C + D).(A + B + C + D).(B + C + D) |
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e : |
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_ _ _ e = B.D + C.D |
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f : |
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_ _ _ _ f = (A+B+D).(C+D).(A+B+C) |
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g : |
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_ _ _ g= (A+B+C).(B+C+D) |
à suivre....
Hex | Binaire | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
A | B | C | D | a | b | c | d | e | f | g | ||
0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | |
1 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | |
2 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | 0 | 1 | |
3 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 1 | |
4 | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 1 | |
5 | 0 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | |
6 | 0 | 1 | 1 | 0 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | |
7 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | |
8 | 1 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | |
9 | 1 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | |
A | 1 | 0 | 1 | 0 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | |
B | 1 | 0 | 1 | 1 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | |
C | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 1 | 0 | |
D | 1 | 1 | 0 | 1 | 0 | 1 | 1 | 1 | 1 | 0 | 1 | |
E | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | 1 | 1 | 1 | |
F | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 1 | 1 |
Cirduit : à suivre...