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Digital Electronics
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Programmable Logic Device
Comments
Question
GAL is an acronym for ________.
Options
A. Generic Array Logic
B. General Array Logic
C. Giant Array Logic
D. Generic Analysis Logic
Correct Answer
Generic Array Logic
Programmable Logic Device problems
Search Results
1. The GAL16V8 has:
Options
A. 16 dedicated inputs.
B. 8 special function pins.
C. 8 pins that are used as inputs or outputs.
D. All of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: 8 pins that are used as inputs or outputs.
2. A slice consists of ________.
Options
A. only two logic cells
B. between 2 and 8 logic cells
C. up to 16 logic cells
D. a single CLB
Show Answer
Scratch Pad
Discuss
Correct Answer: only two logic cells
3. What is the status of a tristate output buffer on a MAX7000S family device?
Options
A. It is permanently enabled or disabled.
B. It is controlled by one of the two global output enable pins.
C. It is controlled by other inputs or functions generated by other macrocells.
D. All of the above
Show Answer
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Discuss
Correct Answer: All of the above
4. What can the GAL22V10 do that the GAL16V8 cannot?
Options
A. It has an extra-large array.
B. It is in-system programmable.
C. It has twice the special function pins.
D. All of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: It is in-system programmable.
5. CLB is the acronym for ________.
Options
A. Configurable Logic Block
B. Configurable Logic Buffer
C. Critical Logic Buffer
D. Constant Logic Buffer
Show Answer
Scratch Pad
Discuss
Correct Answer: Configurable Logic Block
6. The output of this circuit is always ________.
Options
A. 1
B. 0
C. A
D.
A
Show Answer
Scratch Pad
Discuss
Correct Answer: A
7. A macrocell basically contains ________.
Options
A. a programmable AND-OR gate array and some input buffers
B. an OR-gate array and some output logic
C. an AND-OR gate array and some output logic
D. licensed programming
Show Answer
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Discuss
Correct Answer: an OR-gate array and some output logic
8. Product terms are the outputs of which type of gate within a PLD array?
Options
A. OR
B. XOR
C. AND
D. flip-flop
Show Answer
Scratch Pad
Discuss
Correct Answer: AND
9. A circuit that implements a combinational logic function by storing a list of output values that correspond to all possible input combinations is a(n) ________.
Options
A. output logic macrocell
B. look-up table
C. parallel logic expander
D. logic element
Show Answer
Scratch Pad
Discuss
Correct Answer: look-up table
10. The output of this circuit is always ________.
Options
A. 1
B. 0
C. A
D.
A
Show Answer
Scratch Pad
Discuss
Correct Answer:
A
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