Digital Electronics-Code Converts and Multiplexers
Digital Electronics-Code Converts and Multiplexers
11. What control signals may be necessary to operate a 1-line-to-16 line decoder?
- flasher circuit control signal
- a LOW on all gate enable inputs
- input from a hexadecimal counter
- a HIGH on all gate enable circuits
12. One multiplexer can take the place of:
- several SSI logic gates
- combinational logic circuits
- several Ex-NOR gates
- several SSI logic gates or combinational logic circuits
13. How many exclusive-NOR gates would be required for an 8-bit comparator circuit?
- 4
- 6
- 8
- 10
16. How many possible outputs would a decoder have with a 6-bit binary input?
- 16
- 32
- 64
- 128
17. Most demultiplexers facilitate which type of conversion?
- decimal-to-hexadecimal
- single input, multiple outputs
- ac to dc
- odd parity to even parity
18. The inputs/outputs of an analog multiplexer/demultiplexer are:
- bidirectional
- unidirectional
- even parity
- binary-coded decimal
19. Why can a CMOS IC be used as both a multiplexer and a demultiplexer?
- It cannot be used as both.
- CMOS uses bidirectional switches.
20. One application of a digital multiplexer is to facilitate:
- data generation
- serial-to-parallel conversion
- parity checking
- data selector