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Home Digital Electronics The 8051 Microcontroller Comments

  • Question
  • A Celsius thermometer is an application for the 8051 microcontroller.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • True 


  • The 8051 Microcontroller problems


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    • 1. 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
    • 2. Writing counter/loop programs is much more difficult with the introduction of the DJNA and the CJNE instructions.

    • Options
    • A. True
    • B. False
    • Discuss
    • 3. 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
    • 4. 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
    • 5. The RST pin requires a HIGH to reset the 8051 microcontroller.

    • Options
    • A. True
    • B. False
    • Discuss
    • 6. The ADC 0804 is an analog-to-digital converter that provides 8-bit output resolution that can be directly interfaced to a microcontroller.

    • Options
    • A. True
    • B. False
    • Discuss
    • 7. A microcontroller is called a computer on a chip.

    • Options
    • A. True
    • B. False
    • Discuss
    • 8. A positive binary number is represented by a 1 sign bit.

    • Options
    • A. True
    • B. False
    • Discuss
    • 9. Digital systems operate only on discrete digits that represent numbers, letters, or symbols.

    • Options
    • A. True
    • B. False
    • Discuss
    • 10. Manufacturers of computers utilize 3-bit codes to indicate operations or instructions.

    • Options
    • A. True
    • B. False
    • Discuss


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