 | Digital Teaching Aid (DED Philippinen, 86 p.) |
 |  | Data Processing Circuits - Lesson 9 |
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Worksheet No. 9
No. 1 In Fig. 9-1, if
a) A B C D = 0 1 1 0
b) A B C D = 1 0 0 1
c) A B C D = 1 1 0 1
what does Y equal?
Fig. 9-1: 74 150, 16 to 1 multiplexer
No. 2 Show how to connect a 74150 (use Fig. 9-1) to implement the following Boolean equation:
No. 3 Draw a circuit with two 74150's that has the truth table like the following one:
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A |
B |
C |
D |
Y1 |
Y2 |
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0 |
0 |
0 |
0 |
0 |
0 |
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0 |
0 |
0 |
1 |
1 |
0 |
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0 |
0 |
1 |
0 |
0 |
0 |
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0 |
0 |
1 |
1 |
0 |
1 |
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0 |
1 |
0 |
0 |
0 |
0 |
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0 |
1 |
0 |
1 |
1 |
1 |
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0 |
1 |
1 |
0 |
1 |
1 |
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0 |
1 |
1 |
1 |
1 |
1 |
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1 |
0 |
0 |
0 |
0 |
1 |
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1 |
0 |
0 |
1 |
1 |
0 |
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1 |
0 |
1 |
0 |
1 |
0 |
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1 |
0 |
1 |
1 |
1 |
0 |
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1 |
1 |
0 |
0 |
0 |
0 |
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1 |
1 |
0 |
1 |
1 |
0 |
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1 |
1 |
1 |
0 |
1 |
1 |
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1 |
1 |
1 |
1 |
0 |
0 |
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