Discussion
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- Question
The device shown in below is a ________ and for the waveforms shown in the accompanying diagram, the ________ output at point X will be ________ and all others will be ________.
Options- A. multiplexer, D4, HIGH, LOW
- B. demultiplexer, D3, LOW, HIGH
- C. demultiplexer, D3, HIGH, LOW
- D. decoder, D12, LOW, LOW
- Correct Answer
- demultiplexer, D3, LOW, HIGH
- 1. A 1-of-8 octal decoder has eight outputs and decodes an input of ________ bit(s).
Options- A. three
- B. two
- C. four
- D. one Discuss
- 2. A(n) ________ is a logic circuit that accepts a set of inputs that represents a binary number, and activates only the output that corresponds to that input number.
Options- A. decoder
- B. LED
- C. encoder
- D. demultiplexer Discuss
- 3. A decimal-to-BCD encoder has ________ data inputs.
Options- A. two
- B. four
- C. five
- D. ten Discuss
- 4. The normal outputs of a magnitude comparator are ________.
Options- A. A < B, A = B, and A > B
- B. Sum, difference, and carry
- C. Cin, Cout, and Sum
- D. A = B, A + B, and carry Discuss
- 5. In an AHDL BCD to binary coded converter, multiplication by 10 is performed by ________.
Options- A. a multiplication operator
- B. shifting bits
- C. a library function
- D. a variable type Discuss
- 6. If by chance more than one of the inputs in an HDL encoder is activated at the same time, the priority encoder ________.
Options- A. enters a fault mode
- B. ignores the least significant input
- C. resamples the data
- D. finds some other input Discuss
- 7. Another name for a multiplexer is ________.
Options- A. encoder
- B. decoder
- C. code converter
- D. data selector Discuss
- 8. The binary value of the BCD number 1000 0001 (81) is ________.
Options- A. 0101 0001
- B. 0110 0011
- C. 0100 0001
- D. 1000 0000 Discuss
- 9. The device that places its input data onto one of several outputs is a ________.
Options- A. demultiplexer
- B. multiplexer
- C. comparator
- D. counter Discuss
- 10. A(n) ________ has a number of input lines, only one of which is activated at a given time, and produces on N-bit output code, depending on which input is activated.
Options- A. encoder
- B. code converter
- C. demultiplexer
- D. decoder Discuss
MSI Logic Circuits problems
Search Results
Correct Answer: three
Correct Answer: decoder
Correct Answer: ten
Correct Answer: A < B, A = B, and A > B
Correct Answer: a multiplication operator
Correct Answer: ignores the least significant input
Correct Answer: data selector
Correct Answer: 0101 0001
Correct Answer: demultiplexer
Correct Answer: encoder
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