Programmable Logic Device problems
- 1. Which is not a type of PLD?
Options- A. SPLD
- B. HPLD
- C. CPLD
- D. FPGA Discuss
Correct Answer: HPLD
- 2. Cascade chains are closely associated with ________.
Options- A. CLBs
- B. SOP functions
- C. logic expansion
- D. all of the above Discuss
Correct Answer: all of the above
- 3. A PAL16L8 has:
Options- A. 10 inputs and 8 outputs.
- B. 8 inputs and 8 outputs.
- C. 16 inputs and 16 outputs.
- D. 16 inputs and 8 outputs. Discuss
Correct Answer: 10 inputs and 8 outputs.
- 4. The difference between a PLA and a PAL is:
Options- 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. Discuss
Correct Answer: The PLA has a programmable OR plane and a programmable AND plane, while the PAL only has a programmable AND plane.
- 5. Why have PLDs taken over so much of the market?
Options- A. One PLD does the work of many ICs.
- B. The PLDs are cheaper.
- C. Less power is required.
- D. All of the above Discuss
Correct Answer: All of the above
- 6. What gives a GAL its flexibility?
Options- A. Its speed
- B. Its reprogrammable EPROM
- C. Its large logic arrays
- D. Its programmable OLMCs Discuss
Correct Answer: Its programmable OLMCs
- 7. What does the Altera FLEX10K PLD use in place of AND and OR arrays?
Options- A. Nothing, it uses AND and OR arrays.
- B. Look-up tables
- C. SRAM-based memory
- D. HPLD architecture Discuss
Correct Answer: Look-up tables
- 8. A(n) ________ consists of a programmable array of AND gates that connects to a fixed array of OR gates and is usually OTP.
Options- A. GAL
- B. CPLD
- C. PAL
- D. SPLD Discuss
Correct Answer: PAL
- 9. An SPLD listed as 22V10 has ________.
Options- A. 10 inputs, 10 outputs, and requires a 22 V power source
- B. 11 inputs, 11 outputs, and requires a 10 V power source
- C. 22 inputs and 10 outputs
- D. 10 inputs and 22 outputs Discuss
Correct Answer: 22 inputs and 10 outputs
- 10. In an OLMC, where does the FMUX signal go?
Options- A. OMUX
- B. D flip-flop
- C. Matrix
- D. PAL Discuss
Correct Answer: Matrix
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