1 / 20

Logic Gates

Logic Gates. Benchmark Companies Inc PO Box 473768 Aurora CO 80047. Text Description . A. Logic Symbol . Y. B. Truth Table . AND. AND Symbol. Boolean Expression . AND Function (7408). Output Y is TRUE if inputs A AND B are TRUE, else it is FALSE. Y = A x B = A • B = AB.

chava
Télécharger la présentation

Logic Gates

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. Logic Gates Benchmark Companies Inc PO Box 473768 Aurora CO 80047

  2. Text Description  A Logic Symbol  Y B Truth Table  AND AND Symbol Boolean Expression  AND Function (7408) Output Y is TRUE if inputs A AND B are TRUE, else it is FALSE. Y = A x B = A • B = AB

  3. Text Description  OR A Logic Symbol  Y B Truth Table  OR Symbol Boolean Expression  OR Function (7432) Output Y is TRUE if input A OR B is TRUE, else it is FALSE. Y = A + B

  4. A Y NOT Alternative Notation Y = A’ NOT Bar Y = !A Y = A NOT Function (inverter)(7404) Output Y is TRUE if input A is FALSE, else it is FALSE. Y is the inverse of A. Text Description  Logic Symbol  Truth Table  Boolean Expression 

  5. Text Description  A bubble is an inverter This is an AND Gate with an inverted output A Logic Symbol  Y B NAND Truth Table  Boolean Expression  Y = A x B = AB NAND Function (7400) Output Y is FALSE if inputs A AND B are TRUE, else it is TRUE.

  6. Text Description  A bubble is an inverter. This is an OR Gate with its output inverted. A Logic Symbol  Y B NOR Truth Table  Boolean Expression  Y = A + B NOR Function (7402) Output Y is FALSE if input A OR B is TRUE, else it is TRUE.

  7. A AND AND B Y OR NOT C A B C Y 0 0 0 0 0 1 0 1 0 0 1 1 1 0 0 1 0 1 1 1 0 1 1 1 Circuit-to-Truth Table Example 2# ofInputs = # of Combinations 2 3 = 8

  8. 0 A 0 AND AND B Y OR NOT 0 C A B C Y 0 0 0 0 0 0 1 0 1 0 0 1 1 1 0 0 1 0 1 1 1 0 1 1 1 Circuit-to-Truth Table Example 0 0 1 0

  9. 0 0 A 0 AND AND B 1 Y OR NOT 1 1 1 C A B C Y 0 0 0 0 0 0 1 1 0 1 0 0 1 1 1 0 0 1 0 1 1 1 0 1 1 1 Circuit-to-Truth Table Example

  10. 0 0 A 1 AND AND B 0 Y OR NOT 1 0 0 C A B C Y 0 0 0 0 0 0 0 1 1 0 1 0 0 0 1 1 1 0 0 1 0 1 1 1 0 1 1 1 Circuit-to-Truth Table Example

  11. 0 0 A 1 AND AND B 1 Y OR NOT 1 1 1 C A B C Y 0 0 0 0 0 0 0 1 1 0 1 0 0 0 1 1 1 1 0 0 1 0 1 1 1 0 1 1 1 Circuit-to-Truth Table Example

  12. 1 0 A 0 AND AND B 0 Y OR NOT 0 0 0 C A B C Y 0 0 0 0 0 0 0 1 1 0 1 0 0 0 1 1 1 1 0 0 0 1 0 1 1 1 0 1 1 1 Circuit-to-Truth Table Example

  13. 1 0 A 0 AND AND B 0 Y OR NOT 0 0 1 C A B C Y 0 0 0 0 0 0 0 1 1 0 1 0 0 0 1 1 1 1 0 0 0 1 0 1 0 1 1 0 1 1 1 Circuit-to-Truth Table Example

  14. 1 1 A 1 AND AND B 1 Y OR NOT 0 0 0 C A B C Y 0 0 0 0 0 0 0 1 1 0 1 0 0 0 1 1 1 1 0 0 0 1 0 1 0 1 1 0 1 1 1 1 Circuit-to-Truth Table Example

  15. 1 1 A 1 AND AND B 1 Y OR NOT 0 0 1 C A B C Y 0 0 0 0 0 0 0 1 1 0 1 0 0 0 1 1 1 1 0 0 0 1 0 1 0 1 1 0 1 1 1 1 1 Circuit-to-Truth Table Example

  16. A B A A AND AND B Y = A B + A C OR } NOT } C A C A B C Y 0 0 0 0 0 0 0 1 1 0 1 0 0 0 1 1 1 1 0 0 0 1 0 1 0 1 1 0 1 1 1 1 1 Circuit-to-Boolean Equation

  17. A AND AND B Y OR NOT C A - O - I Logic AND Gates Other Logic Arrangements: NAND - NAND Logic NOR - NOR Logic OR Gates INVERTER Gates

  18. S T NAND S T 0 0 NAND 1 A Y B NAND Gate – Special Application 0 1 1 0 Equivalent To An Inverter Gate

  19. S T NOR A Y B NOR S T 0 0 1 NOR Gate - Special Application 0 1 1 0 Equivalent To An Inverter Gate

  20. End of Presentation

More Related