Programmable Logic Devices (Pld) MCQs
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Once a PAL has been programmed:
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A. it cannot be reprogrammed.
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B. its outputs are only active HIGHs
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C. its outputs are only active LOWs
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D. its logic capacity is lost
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Correct Answer: Option A
PLAs, CPLDs, and FPGAs are all which type of device?
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A. SLD
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B. PLD
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C. EPROM
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D. SRAM
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Correct Answer: Option B
The basic programmable logic array (PLA) contains a set of _____ gates, _____ gates, and ______ gates.
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A. NOT, NAND, OR
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B. NOT, AND, OR
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C. NAND, AND, NOR
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D. OR, NOR, AND
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Correct Answer: Option B
The complex programmable logic device (CPLD) contains several PLD blocks and:
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A. field-programmable switches
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B. AND/OR arrays
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C. a global interconnection matrix
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D. a language compiler
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Correct Answer: Option C
The content of a simple programmable logic device (PLD) consists of:
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A. fuse-link arrays
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B. thousands of basic logic gates
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C. advanced sequential logic functions
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D. thousands of basic logic gates and advanced sequential logic functions
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Correct Answer: Option D
The difference between a PLA and a PAL is:
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A. the PLA has a programmable OR plane and a programmable AND plane, while the PAL only has a programmable AND plane
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B. the PAL has a programmable OR plane and a programmable AND plane, while the PLA only has a programmable AND plane
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C. the PAL has more possible product terms than the PLA
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D. PALs and PLAs are the same thing.
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Correct Answer: Option A
The OR array in a PAL is ________.
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A. fixed
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B. programmable
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C. nonexistent; there is no OR array in a PAL
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D. floating
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Correct Answer: Option A
Which type of PLD should be used to program basic logic functions?
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A. PLA
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B. PAL
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C. CPLD
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D. SLD
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Correct Answer: Option B