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