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- Question
A 4-bit ripple counter consists of flip-flops, which each have a propagation delay from clock to Q output of 15 ns. For the counter to recycle from 1111 to 0000, it takes a total of ________.
Options- A. 15 ns
- B. 30 ns
- C. 45 ns
- D. 60 ns
- Correct Answer
- 60 ns
- 1. A popular waveform generator is the Johnson shift counter.
Options- A. True
- B. False Discuss
- 2. An ADC is an analog-to-digital converter.
Options- A. True
- B. False Discuss
- 3. An inverter performs a NOT operation.
Options- A. True
- B. False Discuss
- 4. Antifuse devices are volatile.
Options- A. True
- B. False Discuss
- 5. Address multiplexing is used to reduce the number of address lines.
Options- A. True
- B. False Discuss
- 6. Which type of ROM has to be custom built by the factory?
Options- A. ROM
- B. mask ROM
- C. EPROM
- D. EEPROM Discuss
- 7. The RST pin requires a HIGH to reset the 8051 microcontroller.
Options- A. True
- B. False Discuss
- 8. How many clock pulses will be required to completely load serially a 5-bit shift register?
Options- A. 2
- B. 3
- C. 4
- D. 5 Discuss
- 9. A data selector is also called a demultiplexer.
Options- A. True
- B. False Discuss
- 10. The ________ statement evaluates the variable status.
Options- A. IF/THEN
- B. IF/THEN/ELSE
- C. CASE
- D. ELSIF Discuss
More questions
Correct Answer: True
Correct Answer: True
Correct Answer: True
Correct Answer: False
Correct Answer: True
Correct Answer: mask ROM
Correct Answer: True
Correct Answer: 5
Correct Answer: False
Correct Answer: IF/THEN
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