Discussion
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- Question
What is the duty cycle of the waveform at the output of the circuit given below?
Options- A. 78%
- B. 56%
- C. 50%
- D. 44%
- Correct Answer
- 56%
- 1. The major blocks of the frequency counter are the counter, ________, decoder/display, and the timing and control unit.
Options- A. signal prescaler
- B. control inputs
- C. signal generator
- D. display register Discuss
- 2. Shift register counters use logic functions to reset the registers when the desired count is reached.
Options- A. True
- B. False Discuss
- 3. The software used to drive a microprocessor-based system is called FORTRAN.
Options- A. True
- B. False Discuss
- 4. The time delay called access time, tac, is a measure of the ROM's operating speed.
Options- A. True
- B. False Discuss
- 5. The 8051 has ________ 16-bit counter/timers.
Options- A. 1
- B. 2
- C. 3
- D. 4 Discuss
- 6. The CPU (Central Processing Unit) is composed of memory and outputs.
Options- A. True
- B. False Discuss
- 7. Using separate serial inputs for shifting left or shifting right is a major difference between the 74194 and other shift registers.
Options- A. True
- B. False Discuss
- 8. The time interval on the leading edge of a pulse between 10% and 90% of the amplitude is the rise time.
Options- A. True
- B. False Discuss
- 9. In the keypad HDL encoder, the ts bit array represents a tristate buffer.
Options- A. True
- B. False Discuss
- 10. ________ is a mature technology consisting of numerous subfamilies that have been developed over many years of use.
Options- A. TTL
- B. CMOS
- C. ECL
- D. None of the above Discuss
More questions
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Correct Answer: True
Correct Answer: TTL
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