1 / 18

A Programmable Logic Device

A Programmable Logic Device. Lecture 4.3. A Programmable Logic Device. Multiple-input Gates A 2-Input, 1-Output PLD. Multiple-input Gates. Z. Z. 2. 1. Z. Z. 4. 3. Multiple-input AND Gate. Z. 1. Output is HIGH only if all inputs are HIGH. Z. 1.

caesar-cervantes
Download Presentation

A Programmable Logic Device

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. A Programmable Logic Device Lecture 4.3

  2. A Programmable Logic Device • Multiple-input Gates • A 2-Input, 1-Output PLD

  3. Multiple-input Gates Z Z 2 1 Z Z 4 3

  4. Multiple-input AND Gate Z 1 Output is HIGH only if all inputs are HIGH Z 1 An open input will float HIGH

  5. Multiple-input OR Gate Z 2 Output is LOW only if all inputs are LOW Z 2

  6. Multiple-input NAND Gate Z 3 Output is LOW only if all inputs are HIGH Z 3

  7. Multiple-input NOR Gate Z 4 Output is HIGH only if all inputs are LOW Z 4

  8. A Programmable Logic Device

  9. A Programmable Logic Device A = X & !X & Y & !Y = 0 & 0 = 0

  10. A Programmable Logic Device A = X & !X & Y & !Y = 0 & 0 = 0 Z = A # B = 0 # B = B

  11. A PLD AND Gate

  12. A PLD OR Gate

  13. Sum of Products Design Design an XOR gate X Y Z 0 0 0 0 1 1 1 0 1 1 1 0 m1 = !X & Y m2 = X & !Y Z = m1 # m2 = (!X & Y) # (X & !Y)

  14. A PLD XOR Gate

  15. What type of gate is this? X Y removable jumpers A 1 Z 2 B X !X Y !Y

  16. What type of gate is this? X Y removable jumpers A 1 Z 2 B X !X Y !Y

  17. Lab 2 – Structure of a PLD

More Related