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- Question
The inputs on a 7474 D flip-flop are S, R, D, and CLK ________ is/are synchronous.
Options- A. Only S
- B. S and R
- C. Only D
- D. All of the above.
- Correct Answer
- All of the above.
- 1. What is an OTP device?
Options- A. Optical transporting port
- B. Octal transmitting pixel
- C. Operational topical portable
- D. One-time programmable Discuss
- 2. Many parallel counters use ________ presetting whereby the counter is preset on the active transition of the same clock signal that is used for counting.
Options- A. feedback
- B. synchronous
- C. ripple
- D. asynchronous Discuss
- 3. The asynchronous inputs on a J-K flip-flop ________.
Options- A. are normally not at the active level at the same time
- B. take precedence over the J and K inputs
- C. do not require a clock pulse to affect the output
- D. all of the above Discuss
- 4. In the GAL16V8, the ________ controls the tristate buffer's enable input.
Options- A. FMUX
- B. OMUX
- C. PTMUX
- D. TMUX Discuss
- 5. The macrocells in a PAL/GAL are located ________.
Options- A. after the programmable AND arrays
- B. ahead of the programmable AND arrays
- C. at the input terminals
- D. at the output terminals Discuss
- 6. The serial in/parallel out shift register transfers data from one parallel data bus to another parallel data bus one bit at a time across a single line.
Options- A. True
- B. False Discuss
- 7. A microcontroller would not be used in a(n) ________.
Options- A. VCR
- B. automobile ignition system
- C. antilock brakes
- D. grandfather clock Discuss
- 8. A NAND gate can function as a negative-OR gate.
Options- A. True
- B. False Discuss
- 9. In a positive logic system, the logic LOW could be between 0 V and 0.8 V.
Options- A. True
- B. False Discuss
- 10. Which of the following increases the number of product terms by borrowing unused product from other macrocells?
Options- A. Shared expander
- B. Parallel expander
- C. Series expander
- D. Slice expander Discuss
More questions
Correct Answer: One-time programmable
Correct Answer: synchronous
Correct Answer: all of the above
Correct Answer: TMUX
Correct Answer: after the programmable AND arrays
Correct Answer: False
Correct Answer: grandfather clock
Correct Answer: True
Correct Answer: True
Correct Answer: Parallel expander
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