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- Question
In the keypad application, just after the 4 ms mark the simulation imitates the release of the key by changing the column value back to F hex, which causes the d output to go into its Hi-Z state. On the next rising clock edge, what happens to dav?
Options- A. It goes HIGH.
- B. It goes LOW.
- C. It goes to Hi-Z.
- D. It goes to 1111H.
- Correct Answer
- It goes LOW.
- 1. A current-sourcing transistor may also be referred to as a pull-down transistor.
Options- A. True
- B. False Discuss
- 2. The value of the data shown in the given figure is ________.
Options- A. between 0 and 1
- B. 1011001
- C. 5
- D. 1001101 Discuss
- 3. How many combinations are handled in an LUT?
Options- A. 4
- B. 8
- C. 16
- D. 32 Discuss
- 4. As a rule, CMOS has the lowest power consumption of all IC families.
Options- A. True
- B. False Discuss
- 5. In a FLEX10K device, the carry chain provides a fast carry forward function between ________.
Options- A. LUTs
- B. EABs
- C. LEs
- D. LABs Discuss
- 6. When two counters are cascaded, the overall MOD number is equal to the ________ of their individual MOD numbers.
Options- A. product
- B. sum
- C. log
- D. reciprocal Discuss
- 7. A parallel load operation is asynchronous, so it is not dependent on the clock.
Options- A. True
- B. False Discuss
- 8. The 2's complement of the binary number 1000 is ________.
Options- A. 111
- B. 0110
- C. 1110
- D. 1000 Discuss
- 9. It is normal for more than one decoder output to be active at the same time.
Options- A. True
- B. False Discuss
- 10. How many outputs would two 8-line-to-3-line encoders, expanded to a 16-line-to-4-line encoder, have?
Options- A. 3
- B. 4
- C. 5
- D. 6 Discuss
More questions
Correct Answer: False
Correct Answer: 1011001
Correct Answer: 16
Correct Answer: True
Correct Answer: LEs
Correct Answer: product
Correct Answer: True
Correct Answer: 1000
Correct Answer: False
Correct Answer: 4
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