Download presentation

1
Logic Gates

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

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

4
**NOT Function (inverter)**

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

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

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

7
**Circuit-to-Truth Table Example**

OR A Y NOT AND B C A B C Y 2# of Inputs = # of Combinations 2 3 = 8

8
**Circuit-to-Truth Table Example**

OR A Y NOT AND B C 1 A B C Y

9
**Circuit-to-Truth Table Example**

OR A Y NOT AND B C 1 A B C Y

10
**Circuit-to-Truth Table Example**

OR A Y NOT AND B C 1 A B C Y 1

11
**Circuit-to-Truth Table Example**

OR A Y NOT AND B C 1 A B C Y 1

12
**Circuit-to-Truth Table Example**

OR A Y NOT AND B C 1 A B C Y 1

13
**Circuit-to-Truth Table Example**

OR A Y NOT AND B C 1 A B C Y 1

14
**Circuit-to-Truth Table Example**

OR A Y NOT AND B C 1 A B C Y 1

15
**Circuit-to-Truth Table Example**

OR A Y NOT AND B C 1 A B C Y 1

16
**Circuit-to-Boolean Equation**

A B OR A Y NOT AND B C = A B + A C A 1 } 1 } A C A B C Y

17
**A - O - I Logic AND Gates NAND - NAND Logic OR Gates NOR - NOR Logic**

Y NOT AND B C AND Gates Other Logic Arrangements: NAND - NAND Logic NOR - NOR Logic OR Gates INVERTER Gates

18
**NAND Gate – Special Application**

S T A B Y NAND 1 Equivalent To An Inverter Gate

19
**NOR Gate - Special Application**

S T A B Y NOR 1 Equivalent To An Inverter Gate

Similar presentations

OK

Combinational Logic Digital Design Department of Software Development Faculty of Information Technology Islamic University of Gaza Dr. Rebhi Baraka

Combinational Logic Digital Design Department of Software Development Faculty of Information Technology Islamic University of Gaza Dr. Rebhi Baraka

© 2018 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google

Ppt on limitation act 1963 Ppt on chromosomes Ppt on census 2001 kerala Ppt on charge-coupled device illustration Ppt on shell scripting language Ppt on disk formatting tools Ppt on save environment poster Ppt on life of amelia earhart Ppt on types of life insurance Ppt on water pollution in india