Digital Electronics - Code Converters and Multiplexers
Exercise :: Code Converters and Multiplexers - General Questions
| 36. |
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: Option B
Explanation:
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| 37. |
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: Option A
Explanation:
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| 38. |
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: Option C
Explanation:
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| 39. |
How many 74184 BCD-to-binary converters would be required to convert two complete BCD digits to a binary number? |
Answer: Option C
Explanation:
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| 40. |
How many select lines would be required for an 8-line-to-1-line multiplexer? |
Answer: Option B
Explanation:
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