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Home ‣ Digital Electronics ‣ MSI Logic Circuits See What Others Are Saying!
- Question
The BCD/DEC decoder shown in figure (a) is examined with a logic analyzer and the results are shown in the waveforms in figure (b). What, if anything, is wrong with the circuit?
Options- A. The "2" output is shorted to Vcc.
- B. The A1 input is internally open.
- C. The A1 input node is internally stuck LOW.
- D. Nothing is wrong with the circuit.
- Correct Answer
- The A1 input node is internally stuck LOW.
- 1. What is the resultant binary of the decimal problem 49 + 01 =?
Options- A. 01010101
- B. 00110101
- C. 00110010
- D. 00110001 Discuss
- 2. Data transfer from I/O to external data memory can only be done with the MOVX command.
Options- A. True
- B. False Discuss
- 3. What is the decimal value of 23 ?
Options- A. 2
- B. 4
- C. 6
- D. 8 Discuss
- 4. Which type of ROM can be erased by UV light?
Options- A. ROM
- B. mask ROM
- C. EPROM
- D. EEPROM Discuss
- 5. How many bits are in an ASCII character?
Options- A. 16
- B. 8
- C. 7
- D. 4 Discuss
- 6. A pulse has a period of 15 ms. Its frequency is ________.
Options- A. 6.66 Hz
- B. 66.66 Hz
- C. 666.66 Hz
- D. 15 Hz Discuss
- 7. The Power PC can effectively execute up to ten instructions per clock cycle.
Options- A. True
- B. False Discuss
- 8. A byte has 8 bits.
Options- A. True
- B. False Discuss
- 9. A popular waveform generator is the Johnson shift counter.
Options- A. True
- B. False Discuss
- 10. An ADC is an analog-to-digital converter.
Options- A. True
- B. False Discuss
More questions
Correct Answer: 00110010
Correct Answer: True
Correct Answer: 8
Explanation:
2
3 = 2*2*2=8
Correct Answer: EPROM
Correct Answer: 7
Correct Answer: 66.66 Hz
Correct Answer: False
Correct Answer: True
Correct Answer: True
Correct Answer: True
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