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Home ‣ Digital Electronics ‣ The 8051 Microcontroller See What Others Are Saying!
  • Question

  • What is the difference between the 8031 and the 8051?


  • Options
  • A. The 8031 has no interrupts.
  • B. The 8031 is ROM-less.
  • C. The 8051 is ROM-less.
  • D. The 8051 has 64 bytes more memory.

  • Correct Answer
  • The 8031 is ROM-less. 

    • More questions

    • 1. When the outputs of several open-collector TTL gates are connected together, the gate outputs ________.

    • Options
    • A. usually burn out
    • B. produce more voltage
    • C. are ANDed together
    • D. produce more fan-out
      • Discuss
    • 2. The expression can be directly implemented using only ________.

    • Options
    • A. an XOR gate
    • B. an XNOR gate
    • C. an AOI circuit
    • D. three 2-input NAND gates
      • Discuss
    • 3. The commutative law of Boolean addition states that A + B = A × B.

    • Options
    • A. True
    • B. False
      • Discuss
    • 4. Solve this BCD problem: 0100 + 0110 =

    • Options
    • A. 00010000BCD
    • B. 00010111BCD
    • C. 00001011BCD
    • D. 00010011BCD
      • Discuss
    • 5. The serial format for transmitting binary information uses:

    • Options
    • A. a single conductor
    • B. multiple conductors
    • C. infrared technology
    • D. fiber-optic
      • Discuss
    • 6. Solve this binary problem:

    • Options
    • A. 11001001
    • B. 10010000
    • C. 01101110
    • D. 01110110
      • Discuss
    • 7. Binary subtraction of a decimal 15 from 43 will utilize which two's complement?

    • Options
    • A. 101011
    • B. 110000
    • C. 011100
    • D. 110001
      • Discuss
    • 8. If an analog signal is to be converted to an 8-bit resolution, how many comparators are used in a parallel-encoded ADC?

    • Options
    • A. 127
    • B. 128
    • C. 255
    • D. 256
      • Discuss
    • 9. If an input is activated by a signal transition, it is ________.

    • Options
    • A. edge-triggered
    • B. toggle triggered
    • C. clock triggered
    • D. noise triggered
      • Discuss
    • 10. The octal number for binary 1101110101110110 is ________.

    • Options
    • A. 6545218
    • B. 5565618
    • C. 1566568
    • D. 1565668
      • Discuss

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