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  • Question

  • What is the significance of the inverted triangles on the outputs of the device in the given figure?

    What is the significance of the inverted triangles on the outputs of the device in the given figure?


  • Options
  • A. They represent inverters and mean that the outputs are active-LOW.
  • B. They represent buffers and mean that the outputs can drive 40 TTL loads, instead of the normal 10.
  • C. It means that the outputs will be active only if a change has occurred at that memory location since the last read/write cycle.
  • D. The outputs are tristated.

  • Correct Answer
  • The outputs are tristated. 

    • More questions

    • 1. In HDL, LITERALS is/are:

    • Options
    • A. digital systems.
    • B. scalars.
    • C. binary coded decimals.
    • D. a numbering system.
      • Discuss
    • 2. Convert the following decimal number to hexadecimal.
      74

    • Options
    • A. A416
    • B. B416
    • C. 4A16
    • D. 4B16
      • Discuss
    • 3. Most modern digital systems are based on semiconductor technology.

    • Options
    • A. True
    • B. False
      • Discuss
    • 4. The BCD equivalent of 73 is 01001001.

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. The stepper motor HDL will ignore its counter inputs and pass control inputs directly to the output when set in mode ________.

    • Options
    • A. 1
    • B. 2
    • C. 3
    • D. 4
      • Discuss
    • 6. The CMOS uses bipolar transistors instead of MOSFET.

    • Options
    • A. True
    • B. False
      • Discuss
    • 7. In TTL the noise margin is between 0.8 V and 0.4 V.

    • Options
    • A. True
    • B. False
      • Discuss
    • 8. A very critical dimension in project management is the time your boss will give you to complete the HDL project.

    • Options
    • A. True
    • B. False
      • Discuss
    • 9. The Boolean sum of the four product terms is called the sum-of-products.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. How many flip-flops are required to construct a decade counter?

    • Options
    • A. 10
    • B. 8
    • C. 5
    • D. 4
      • Discuss

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