BANNARI AMMAN INSTITUTE OF TECHNOLOGY

SATHYAMANGALAM

Department of Electrical & Electronics Engineering

Branch /Semester/ /sec/YearEEE/IV/A&B/II Year

Subject Code and Subject Name11E406 and DIGITAL LOGIC CIRCUITS

Name of the faculty:Mr.B.Vinothkumar and Mr.P. Karuppusamy

Unit:2 Lesson No: [ 1 ] / [6 ]

Time:75 minutes

1. Name of the Topic: Design of logic gates, NAND NOR implementation

2. Skills Addressed: Reading, Questioning, Drawing mind map, Summarizing, Discussion, Drawing Diagrams, and Expressing orally and in writing.

3. Objectives of this lesson:1. To gain thorough knowledge of logic gates design

2. To understand the implementation of NAND NOR implementation

4. Link Sheet

5. Alpha Breathing- 2 min Three steps for alpha breathing Breath in (as much as possible)

Breath out (Completely)

Hold (as long as possible)

(Repeat the three steps 8 times)

6. Evocation: (5 Mins)

7. Subject Introduction: (20 Mins)The introduction to the topic design of logic gates, NAND NOR implementation is given through Power Point presentation.

8. Text book: Digital Design, M. Morris Mano ,Page No: 55-60

9. Procedure for solving the problem /Steps for solving the problem (It has to be narrated by the faculty ) (5 Mins)1.Complete truth table2.Analysis the output

3.Draw the logic diagram with logic gates

4.Satement

10. Rote Memory 1 minute (Just recalling the procedure/steps for solving the problem for 1 minute in eyes closed state)

11. Flow Chart for the procedure narrated (It has to be drawn by the students with the help of the procedure narrated by the faculty. Faculty finally can display their flow chart to the students)(5 mins)

12. Brain Activation Techniques - 2 minAny one of the following activities

Brain activation techniques

Rebus Puzzles / any other puzzles

Perpetual calendar

etc.

13. Problems to be solved by students (20Mins)1. Draw the basic symbols, construct the truth table and with the help of circuit diagrams explain the working of that following gates:

(i) AND (ii) OR (iii) NOT (iv) NAND (v) NOR

2. Show an arrangement to X-OR and XNOR the inputs A, B, C and D.3. Obtain the real minimal expression for F=m(1,2,4,6,7) and implement it using universal

gates

4. Implement the function F = m(0,6) with the four two-level forms listed below.

AND-NOR NAND-AND OR-NAND NOR-OR

14. Lesson outcome: By learning this unit, students will be able to understand the design of logic gates, NAND NOR implementation, proper understanding with skills to apply knowledge elsewhere.

15. Question and Answer session (15 M ins)1. What are logic gates?

2. What is logic circuit?

3. What is logic design?

4. Why AND, OR and NOT are called basic gates?

5. What do you meant by a bubbled OR gate?

6. How can a NAND gate be used as an inverter?

7. What do you meant by a bubbled AND gate?

Multiple Choice Questions

1. The output of an exclusive-NOR gate is 1. Which input combination is correct?

A. A = 1, B = 0 B. A = 0, B = 1 C. A = 0, B = 0 D. none of the above2. The 8-input XOR circuit shown has an output of Y = 1. Which input combination below (ordered A H) is correct?

A. 10111100 B. 10111000 C. 11100111 D. 000111013. Implementing the expression AB + CDE using NAND logic, we get:

A. (A) B. (B) C. (C) D. (D)

4.A 4-variable AND-OR-Invert circuit produces a 0 at its Y output. Which combination of

inputs is correct?

A. B. C. D. none of the above

Truth table

K-Map

Design of circuits

To design circuit using gates

Universal gates NAND

NOR gates implementation

AND

OR

NOT

NAND

NOR

XOR

XNOR

Implementation

Types

Design of Logic Gates