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Home ‣ Digital Electronics ‣ The 8051 Microcontroller Comments
  • Question

  • The RST pin requires a HIGH to reset the 8051 microcontroller.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • True 

    • The 8051 Microcontroller problems

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    • 1. Different instruction sets must make up for the various members of the 8051 family.

    • Options
    • A. True
    • B. False
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    • 2. The 8051 is a 40-pin IC. Twenty-two pins are needed for the four I/O ports.

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    • A. True
    • B. False
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    • 3. A monostable multivibrator is commonly called a two shot.

    • Options
    • A. True
    • B. False
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    • 4. 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
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    • 5. The 74S124 TTL chip is a voltage-controlled oscillator that will generate a specific frequency at Vout.

    • Options
    • A. True
    • B. False
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    • 6. 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
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    • 7. In an 8051 program DA A adjusts the value in the accumulator resulting from an addition into two BCDs.

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    • A. True
    • B. False
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    • 8. Writing counter/loop programs is much more difficult with the introduction of the DJNA and the CJNE instructions.

    • Options
    • A. True
    • B. False
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    • 9. Analog output current must be converted into a usable voltage. To perform this current-to-voltage conversion a 700 op amp may be used.

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    • A. True
    • B. False
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    • 10. A Celsius thermometer is an application for the 8051 microcontroller.

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    • A. True
    • B. False
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