Exercise: Code Converters And Multiplexers

Questions for: Code Converters And Multiplexers

How many select lines would be required for an 8-line-to-1-line multiplexer?
A:
2
B:
3
C:
4
D:
8
Answer: B
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How many 74184 BCD-to-binary converters would be required to convert two complete BCD digits to a binary number?
A:
8
B:
4
C:
2
D:
1
Answer: C
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A circuit that responds to a specific set of signals to produce a related digital signal output is called a(n):
A:
BCD matrix
B:
display driver
C:
encoder
D:
decoder
Answer: C
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If two inputs are active on a priority encoder, which will be coded on the output?
A:
the higher value
B:
the lower value
C:
neither of the inputs
D:
both of the inputs
Answer: A
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How can the active condition (HIGH or LOW) or the decoder output be determined from the logic symbol?
A:
A bubble indicates active-HIGH.
B:
A bubble indicates active-LOW.
C:
A square indicates active-HIGH.
D:
A square indicates active-LOW.
Answer: B
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