Discussion
Home ‣ Digital Electronics ‣ Code Converters and Multiplexers Comments
- Question
How many exclusive-NOR gates would be required for an 8-bit comparator circuit?
Options- A. 4
- B. 6
- C. 8
- D. 10
- Correct Answer
- 8
- 1. How many inputs are required for a 1-of-16 decoder?
Options- A. 2
- B. 4
- C. 8
- D. 16 Discuss
- 2. How many inputs will a decimal-to-BCD encoder have?
Options- A. 4
- B. 8
- C. 10
- D. 16 Discuss
- 3. In a Gray code, each number is 3 greater than the binary representation of that number.
Options- A. True
- B. False Discuss
- 4. A truth table with output columns numbered 0?15 may be for which type of decoder IC?
Options- A. hexadecimal 1-of-16
- B. dual octal outputs
- C. binary-to-hexadecimal
- D. hexadecimal-to-binary Discuss
- 5. A binary code that progresses such that only one bit changes between two successive codes is:
Options- A. nine's-complement code
- B. 8421 code
- C. excess-3 code
- D. Gray code Discuss
- 6. The inputs/outputs of an analog multiplexer/demultiplexer are:
Options- A. bidirectional
- B. unidirectional
- C. even parity
- D. binary-coded decimal Discuss
- 7. One way to convert BCD to binary using the hardware approach is:
Options- A. with MSI IC circuits
- B. with a keyboard encoder
- C. with an ALU
- D. UART Discuss
- 8. If two inputs are active on a priority encoder, which will be coded on the output?
Options- A. the higher value
- B. the lower value
- C. neither of the inputs
- D. both of the inputs Discuss
- 9. A BCD decoder will have how many rows in its truth table?
Options- A. 10
- B. 9
- C. 8
- D. 3 Discuss
- 10. A principle regarding most IC decoders is that when the correct input is present, the related output will switch:
Options- A. active-HIGH
- B. to a high impedance
- C. to an open
- D. active-LOW Discuss
Code Converters and Multiplexers problems
Search Results
Correct Answer: 4
Correct Answer: 10
Correct Answer: False
Correct Answer: hexadecimal 1-of-16
Correct Answer: Gray code
Correct Answer: bidirectional
Correct Answer: with MSI IC circuits
Correct Answer: the higher value
Correct Answer: 10
Correct Answer: active-LOW
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