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Digital Electronics
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Combinational Logic Analysis
Comments
Question
A gate can drive a number of load gate inputs up to its specified ________.
Options
A. supply voltage
B. noise margin
C. fan-in
D. fan-out
Correct Answer
fan-out
Combinational Logic Analysis problems
Search Results
1. A VHDL component is a predefined logic function.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: False
2. A NOR gate is a universal gate.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: True
3. The output of an AND gate is HIGH when any input is HIGH.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: False
4. An exclusive-OR gate's output is HIGH when its inputs are equal.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: False
5. The output of a NAND gate is LOW when all inputs are HIGH at the same time.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: True
6. 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
Show Answer
Scratch Pad
Discuss
Correct Answer: an XOR gate
7. Assume that you have a 3-input NAND gate but need only a 2-input gate. The unused input should be ________.
Options
A. connected to ground
B. left open
C. connected to a HIGH
D. any of the above
Show Answer
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Discuss
Correct Answer: connected to a HIGH
8. If both inputs of a 2-input NOR gate are connected, the gate will function as an ________.
Options
A. OR gate
B. AND gate
C. inverter
D. any of the above
Show Answer
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Discuss
Correct Answer: inverter
9. The symbol shown represents ________.
Options
A. AND-OR logic
B. AOI logic
C. XOR gate
D. XNOR gate
Show Answer
Scratch Pad
Discuss
Correct Answer: AND-OR logic
10. The symbol shown represents a(n) ________.
Options
A. AND gate
B. OR gate
C. NAND gate
D. NOR gate
Show Answer
Scratch Pad
Discuss
Correct Answer: NOR gate
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