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

  • An alternate function of port pin P3.4 in the 8051 is:


  • Options
  • A. Timer 0
  • B. Timer 1
  • C. interrupt 0
  • D. interrupt 1

  • Correct Answer
  • Timer 0 

    • More questions

    • 1. The solution to the BCD problem 0101 + 0100 is 00001001BCD.

    • Options
    • A. True
    • B. False
      • Discuss
    • 2. The toggle condition in a master-slave J-K flip-flop means that Q and will switch to their ________ state(s) at the ________.

    • Options
    • A. opposite, active clock edge
    • B. inverted, positive clock edge
    • C. quiescent, negative clock edge
    • D. reset, synchronous clock edge
      • Discuss
    • 3. A D-type latch is able to change states and "follow" the D input regardless of the level of the ENABLE input.

    • Options
    • A. True
    • B. False
      • Discuss
    • 4. Power dissipation is a measure of a circuit's noise immunity.

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. The final output of a POS circuit is generated by ________.

    • Options
    • A. an AND
    • B. an OR
    • C. a NOR
    • D. a NAND
      • Discuss
    • 6. A negative edge-triggered flip-flop will accept inputs only when the clock is LOW.

    • Options
    • A. True
    • B. False
      • Discuss
    • 7. A type of read/write memory available with MOS technology is ________.

    • Options
    • A. SRAM
    • B. DRAM
    • C. both of the above
    • D. none of the above
      • Discuss
    • 8. Which transistor element is used in CMOS logic?

    • Options
    • A. FET
    • B. MOSFET
    • C. Bipolar
    • D. Unijunction
      • Discuss
    • 9. The four input-only pins found on devices in the MAX7000S family can be configured as specific high-speed control signals or as general user inputs.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. Pull-up resistors and pull-down resistors are used to keep a floating terminal HIGH.

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

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