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Combinational Logic Circuits problems

  • 1. The ________ prefix on IC's indicates a broader operating temperature range, and the devices are generally used by the military.

  • Options
  • A. 54
  • B. 2N
  • C. 74
  • D. TTL
    • Discuss
  • 2. For the XNOR gate truth table shown below, the values for w, x, y, and z are ____, ____, ____, and ____, respectively.

    Digital Electronics Combinational Logic Circuits: For the XNOR gate truth table shown below, the values for w, x, y, and z


  • Options
  • A. 1, 0, 0, 1
  • B. 0, 1, 0, 1
  • C. 1, 1, 1, 0
  • D. 1, 0, 0, 0
    • Discuss
  • 3. A gate that could be used to compare two logic levels and provide a HIGH output if they are equal is a(n) ________.

  • Options
  • A. XOR gate
  • B. XNOR gate
  • C. NAND gate
  • D. NOR gate
    • Discuss
  • 4. The ________ circuit produces a HIGH output whenever the two inputs are unequal.

  • Options
  • A. exclusive-AND
  • B. exclusive-NOR
  • C. exclusive-OR
  • D. inexclusive-OR
    • Discuss
  • 5. The ________ series of IC's are pin, function, and voltage-level compatible with the 74 series IC's.

  • Options
  • A. ALS
  • B. CMOS
  • C. HCT
  • D. 2N
    • Discuss
  • 6. When grouping cells within a K-map, the cells must be combined in groups of ________.

  • Options
  • A. 2's
  • B. 1, 2, 4, 8, etc.
  • C. 4's
  • D. 3's
    • Discuss
  • 7. The simplified form of Digital Electronics Combinational Logic Circuits: The simplified form of is ________.

  • Options
  • A.
  • B.
  • C.
  • D.
    • Discuss
  • 8. One reason for using the sum-of-products form is that it can be implemented using all ________ gates without much difficulty.

  • Options
  • A. NOR
  • B. NAND
  • C. AND
  • D. DOOR
    • Discuss
  • 9. The output of a gate has an internal short; a current tracer will ________.

  • Options
  • A. identify the defective gate
  • B. show whether the gate is shorted to Vcc or ground
  • C. probably not be able to locate the problem
  • D. be able to identify the defective load node
    • Discuss
  • 10. The largest truth table that can be implemented directly with an 8-line-to-1-line MUX has ________.

  • Options
  • A. 3 rows
  • B. 4 rows
  • C. 8 rows
  • D. 16 rows
    • Discuss

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