logo

CuriousTab

CuriousTab

Discussion


Home Digital Electronics Digital System Projects Using HDL See What Others Are Saying!
  • Question
  • In a frequency counter, what happens at high frequencies when the sampling interval is too long?


  • Options
  • A. The counter works fine.
  • B. The counter undercounts the frequency.
  • C. The measurement is less precise.
  • D. The counter overflows.

  • Correct Answer
  • The counter overflows. 


  • More questions

    • 1. The problem of interfacing IC logic families that have different supply voltages (VCC's) can be solved by using a:

    • Options
    • A. level-shifter
    • B. tristate shifter
    • C. decoupling capacitor
    • D. pull-down resistor
    • Discuss
    • 2. Hexadecimal 12 is ________in binary.

    • Options
    • A. 00010111
    • B. 00010100
    • C. 00010010
    • D. 00100001
    • Discuss
    • 3. A NAND gate has:

    • Options
    • A. active-LOW inputs and an active-HIGH output.
    • B. active-LOW inputs and an active-LOW output.
    • C. active-HIGH inputs and an active-HIGH output.
    • D. active-HIGH inputs and an active-LOW output.
    • Discuss
    • 4. The 8051 is a 40-pin IC. Twenty-two pins are needed for the four I/O ports.

    • Options
    • A. True
    • B. False
    • Discuss
    • 5. What gives a GAL its flexibility?

    • Options
    • A. Its speed
    • B. Its reprogrammable EPROM
    • C. Its large logic arrays
    • D. Its programmable OLMCs
    • Discuss
    • 6. FPGA is the acronym for ________.

    • Options
    • A. Flexible Programming [of] Generic Assemblies
    • B. Field Programmable Generic Array
    • C. Field Programmable Gate Array
    • D. Field Programmer's Gate Assembly
    • Discuss
    • 7. The binary adder circuit is designed to add ________ binary numbers at the same time.

    • Options
    • A. 2
    • B. 4
    • C. 6
    • D. 8
    • Discuss
    • 8. When using edge-triggered flip-flops, the data is entered into the flip-flop on the leading edge of the clock, but the output does not change until the trailing edge of the clock.

    • Options
    • A. True
    • B. False
    • Discuss
    • 9. The 74LS382 ALU is a 24-pin arithmetic/logic unit.

    • Options
    • A. True
    • B. False
    • Discuss
    • 10. A look-up table is simply a truth table with all the possible output connections listed with their desired input response.

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


    Comments

    There are no comments.

Enter a new Comment