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Home ‣ Digital Electronics ‣ The 8051 Microcontroller Comments
- Question
Different instruction sets must make up for the various members of the 8051 family.
Options- A. True
- B. False
- Correct Answer
- False
- 1. The 8051 is a 40-pin IC. Twenty-two pins are needed for the four I/O ports.
Options- A. True
- B. False Discuss
- 2. A monostable multivibrator is commonly called a two shot.
Options- A. True
- B. False Discuss
- 3. A multivibrator is a circuit that changes between two digital levels on a continuous, free-running basis or on demand.
Options- A. True
- B. False Discuss
- 4. The 74S124 TTL chip is a voltage-controlled oscillator that will generate a specific frequency at Vout.
Options- A. True
- B. False Discuss
- 5. Timing accuracy of more than eight significant digits can be easily achieved by using quartz crystals.
Options- A. True
- B. False Discuss
- 6. The RST pin requires a HIGH to reset the 8051 microcontroller.
Options- A. True
- B. False Discuss
- 7. Up to 65K of code memory and 65K of data memory can be added to any of the 8051 family members.
Options- A. True
- B. False Discuss
- 8. In an 8051 program DA A adjusts the value in the accumulator resulting from an addition into two BCDs.
Options- A. True
- B. False Discuss
- 9. Writing counter/loop programs is much more difficult with the introduction of the DJNA and the CJNE instructions.
Options- A. True
- B. False Discuss
- 10. Analog output current must be converted into a usable voltage. To perform this current-to-voltage conversion a 700 op amp may be used.
Options- A. True
- B. False Discuss
The 8051 Microcontroller problems
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