Course Description

This course presents an introduction to Digital logic techniques and its practical application in computer and digital system.

Course Objectives

Upon the conclusion of the course, students should be able to: - Perform conversion among different number systems - Simplify logic functions - Design combinational and sequential logic circuit - Understand industrial application of logic system - Understand Digital IC analysis and its application - Designing of programmable memory

Course Contents

1. Unit 1: Introduction

2 hrs

1.1. Digital Signals and Wave Forms

1.2. Digital Logic and Operation

1.3. Digital Computer and Integrated Circuits (IC)

1.4. Clock Wave Form

2. Unit 2: Number Systems

5 hrs

2.1. Binary, Octal, & Hexadecimal Number Systems and Their Conversions

2.2. Representation of Signed Numbers-Floating Point Number

2.3. Binary Arithmetic

2.4. Representation of BCD-ASCII-Excess 3 -Gray Code –Error Detecting and Correcting Codes

3. Unit 3: Combinational Logic Design

16 hrs

3.1. Basic Logic Gates NOT, OR and AND

3.2. Universal Logic Gates NOR and NAND

3.3. EX-OR and EX-NOR Gates

3.4. Boolean Algebra: Postulates & Theorems

3.5. Canonical Forms, Simplification of Logic Functions

3.6. Simplification of Logic Functions Using Karnaugh Map

3.7. Analysis of SOP And POS Expression

3.8. Implementation of Combinational Logic Functions

3.9. Encoders & Decoders

3.10. Half Adder, & Full Adder

3.11. Implementation of Data Processing Circuits

3.12. Multiplexers and De-Multiplexers

3.13. Parallel Adder -Binary Adder-Parity Generator /Checker

4. Unit 4: Counters & Registers

16 hrs

4.1. RS, JK, JK Master - Slave, D & T Flip flops

4.2. Level Triggering and Edge Triggering

4.3. Excitation Tables

4.4. Asynchronous Synchronous Counters

4.5. Ripple Counter, Ring Counter, Modulus 10 Counter

4.6. Modulus Counters (5, 7, 11) and Design Principle

4.7. Synchronous Design of Above Counters, Circuit Diagrams and State Diagrams

4.8. Application of Counters

4.9. Digital Watch, Frequency Counter

4.10. Registers: Serial in Parallel out Register, Serial in Serial out Register

4.11. Parallel in Serial out Register, Parallel in Parallel out Register

4.12. Right Shift, Left Shift Register

5. Unit 5: Sequential Logic Design

6 hrs

5.1. Basic Models of Sequential Machines

5.2. Concept of State, State Diagram

5.3. State Reduction through Partitioning and Implementation of Synchronous Sequential Circuits

5.4. Use of Flip-Flops in Realizing the Models

5.5. Counter Design

Laboratory Works

Laboratory works should cover all the units and topics mentioned and include implementation of logic circuits using gates, adders, multiplexers, counters, etc.

1. Gates using Active and Passive Elements
2. Half Adder and Full Adder
3. 16:1 Multiplexer
4. 1:16 Demultiplexer
5. Digital Watch by Counters
6. Shift Registers

Text Books

1.Floyd, "Digital Fundamentals", PHI.
2.Morris Mano, "Digital Design", Prentice Hall of India.
3.Tocci.R.J, "Digital systems-Principles & Applications"-Prentice Hall of India.

Reference Books

1.B. R. Gupta and V.Singhal, "Digital Electronics" 4th Edition, S.K Kataria & sons, India.
2.Fletcher.W.I., "An Engineering Approach to Digital Design", Prentice Hall of India.
3.Millman & Halkias, "Integrated Electronics".
4.V.K.PURI, "Digital Electronics", TMH.

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Digital Logic