Digital Electronics Combinational Logic Circuits Questions and Answers
Digital Electronics Combinational Logic Circuits
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59 questions
1. How many 3-line-to-8-line decoders are required for a 1-of-32 decoder?
- 1
- 2
- 4
- 8
5. How many 1-of-16 decoders are required for decoding a 7-bit binary number?
- 5
- 6
- 7
- 8
6. The implementation of simplified sum-of-products expressions may be easily implemented into actual logic circuits using all universal ________ gates with little or no increase in circuit complexity. (Select the response for the blank space that will BEST make the statement true.)
- AND/OR
- NAND
- NOR
7. Which of the following statements accurately represents the two BEST methods of logic circuit simplification?
- Boolean algebra and Karnaugh mapping
- Karnaugh mapping and circuit waveform analysis
- Actual circuit trial and error evaluation and waveform analysis
- Boolean algebra and actual circuit trial and error evaluation
8. Which of the following combinations cannot be combined into K-map groups?
- Corners in the same row
- Corners in the same column
- Diagonal corners
- Overlapping combinations
10. In VHDL, macrofunctions is/are:
- digital circuits.
- analog circuits.
- a set of bit vectors.
- preprogrammed TTL devices.