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- Question
Once a PAL has been programmed:
Options- 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
- it cannot be reprogrammed.
- 1. The commutative law of addition and multiplication indicates that:
Options- A. the way we OR or AND two variables is unimportant because the result is the same
- B. we can group variables in an AND or in an OR any way we want
- C. an expression can be expanded by multiplying term by term just the same as in ordinary algebra
- D. the factoring of Boolean expressions requires the multiplication of product terms that contain like variables Discuss
- 2. Logically, the output of a NOR gate would have the same Boolean expression as a(n):
Options- A. NAND gate immediately followed by an INVERTER
- B. OR gate immediately followed by an INVERTER
- C. AND gate immediately followed by an INVERTER
- D. NOR gate immediately followed by an INVERTER Discuss
- 3. The observation that a bubbled input OR gate is interchangeable with a bubbled output AND gate is referred to as:
Options- A. a Karnaugh map
- B. DeMorgan's second theorem
- C. the commutative law of addition
- D. the associative law of multiplication Discuss
- 4. Which of the examples below expresses the distributive law of Boolean algebra?
Options- A. A ? (B ? C) = (A ? B) + C
- B. A + (B + C) = (A ? B) + (A ? C)
- C. A ? (B + C) = (A ? B) + (A ? C)
- D. (A + B) + C = A + (B + C) Discuss
- 5. One of DeMorgan's theorems states that
. Simply stated, this means that logically there is no difference between:
Options- A. a NAND gate and an AND gate with a bubbled output
- B. a NOR gate and an AND gate with a bubbled output
- C. a NOR gate and a NAND gate with a bubbled output
- D. a NAND gate and an OR gate with a bubbled output Discuss
- 6. Which type of PLD should be used to program basic logic functions?
Options- A. PLA
- B. PAL
- C. CPLD
- D. SLD Discuss
- 7. The complex programmable logic device (CPLD) contains several PLD blocks and:
Options- A. field-programmable switches
- B. AND/OR arrays
- C. a global interconnection matrix
- D. a language compiler Discuss
- 8. PLAs, CPLDs, and FPGAs are all which type of device?
Options- A. SLD
- B. PLD
- C. EPROM
- D. SRAM Discuss
- 9. The content of a simple programmable logic device (PLD) consists of:
Options- 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 Discuss
- 10. 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
Programmable Logic Devices (PLD) problems
Search Results
Correct Answer: the way we OR or AND two variables is unimportant because the result is the same
Correct Answer: OR gate immediately followed by an INVERTER
Correct Answer: DeMorgan's second theorem
Correct Answer: A ? (B + C) = (A ? B) + (A ? C)
Correct Answer: a NOR gate and an AND gate with a bubbled output
Correct Answer: PAL
Correct Answer: a global interconnection matrix
Correct Answer: PLD
Correct Answer: thousands of basic logic gates and advanced sequential logic functions
Correct Answer: 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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