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- Question
What must be done in the given figure in order to use two 7485 4-bit comparators to compare two 8-bit numbers?
Options- A. The P < Q, P = Q, and P > Q outputs of COMP A must be connected to the same outputs of COMP B.
- B. The P < Q, P = Q, and P > Q outputs of COMP A must be connected to the <, =, and > inputs of COMP B.
- C. The = input of COMP A must be connected to Vcc, and the < and > inputs must be connected to ground.
- D. The P < Q, P = Q, and P > Q outputs of COMP A must be connected to the <, =, and > inputs of COMP B, the = input of COMP A must be connected to Vcc, and the < and > inputs must be connected to ground.
- Correct Answer
- The P < Q, P = Q, and P > Q outputs of COMP A must be connected to the <, =, and > inputs of COMP B, the = input of COMP A must be connected to Vcc, and the < and > inputs must be connected to ground.
- 1. The programming technologies that are used in FPGA devices include SRAM, flash, and antifuse, with flash being most common.
Options- A. True
- B. False Discuss
- 2. Which of the following is not generally associated with flip-flops?
Options- A. Hold time
- B. Propagation delay time
- C. Interval time
- D. Set up time Discuss
- 3. A 555 operating as a monostable multivibrator has an R1 of 220 kΩ. Determine C1 for a pulse width of 4 ms.
Options- A. 0.017 µF
- B. 17 pF
- C. 170 pF
- D. 1,700 µF Discuss
- 4. An effective time delay device can be constructed by using the propagation delay characteristic of parallel shift registers.
Options- A. True
- B. False Discuss
- 5. If a 3-input NOR gate has eight input possibilities, how many of those possibilities will result in a HIGH output?
Options- A. 1
- B. 2
- C. 7
- D. 8 Discuss
- 6. The complex programmable logic device (CPLD) features a(n) ________ type of memory.
Options- A. volatile
- B. nonvolatile
- C. EPROM
- D. volitile EPROM Discuss
- 7. Digital electronics must use a numbering system that has more than ten digits.
Options- A. True
- B. False Discuss
- 8. The final step in a design flow in which the logic design is implemented in the target device is called ________.
Options- A. design entry
- B. simulation
- C. downloading
- D. compiling Discuss
- 9. Which of the following is NOT a type of memory?
Options- A. RAM
- B. ROM
- C. FPROM
- D. EEPROM Discuss
- 10. Unused TTL inputs should be tied LOW.
Options- A. True
- B. False Discuss
More questions
Correct Answer: False
Correct Answer: Interval time
Correct Answer: 0.017 µF
Correct Answer: False
Correct Answer: 1
Correct Answer: nonvolatile
Correct Answer: False
Correct Answer: downloading
Correct Answer: FPROM
Correct Answer: False
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