Course Description

Digital Logic (ENEX 152) covers the study, analysis, design and applications of digital circuitries. It represents an important branch of electronics that revolutionizes the modern digital world.

Course Objectives

This course mainly focuses on study, analyze basic principle, design and applications of digital circuitries in various fields. It also shows an important branch of the electronics that revolutionizes the modern digital world.

Course Contents

1. Introduction

5 hrs

1.1. Digital versus analog signals

1.2. Logic level diagram

1.3. Digital integrated circuits (ICs)

1.4. Clock triggering systems

1.5. Digital system applications

1.6. Digital codes and conversions

Decimal, binary, octal and hexadecimal codes

BCD code

Excess-3 code

Gray code

Examples of code conversions

1.7. Alphanumeric codes: ASCII code and EBCDIC code

1.8. 1's complement and 2's complement

1.9. Signed number representation

2. Logic Gates

3 hrs

2.1. Basic gates and their equivalents

2.2. Universal gates and their equivalents

2.3. Exclusive gates and their equivalents

2.4. Positive and negative logic

2.5. De'Morgan's laws

2.6. Applications of logic gates

3. Boolean Algebra and K-Maps

4 hrs

3.1. Boolean algebra and its laws

3.2. Simplifications of Boolean expressions

3.3. Minterms and maxterms

3.4. Sum-of-product and product-of-sum methods

3.5. Truth tables and Karnaugh map

3.6. Four variables K-maps

3.7. Cell, pairs, quads and octets

3.8. Rolling, envelop effects and redundant groups

3.9. Don't care conditions

4. Combinational Logic Circuits

8 hrs

4.1. Design procedures

4.2. Half-adder and full-adder

4.3. Half-subtractor and full-subtractor

4.4. Ripple carry adders and fast adders

4.5. Multiplexers design

4.6. Demultiplexers design

4.7. Basic encoders

4.8. Priority encoders

4.9. Encoder designs

4.10. Decoder designs

4.11. BCD-to-decimal decoder

4.12. Seven-segment decoder

4.13. Magnitude comparators

5. Sequential Logic Circuits

5 hrs

5.1. Latches and flip-flops: SR, D, T and JK

5.2. Excitation tables, characteristic equations

5.3. Master-slave flip-flops

5.4. Flip-flop timing diagrams

5.5. Flip-flops as the state machines

5.6. Flip-flop conversions

5.7. Flip-flop applications

6. Registers and Counters

7 hrs

6.1. Register fundamentals, register types

6.2. SISO, SIPO, PISO and PIPO registers

6.3. Data transfer timing diagrams

6.4. Asynchronous counters

6.5. Up, down and mod-n asynchronous counters

6.6. Synchronous counters

6.7. Up, down and mod-n synchronous counters

6.8. Register and counter applications

7. Sequential Machine Designs

8 hrs

7.1. Machine design procedures

7.2. Primitive state diagrams

7.3. Transition/flow tables

7.4. Redundant states

7.5. Pure binary assignment tables

7.6. Excitation maps

7.7. Realization of the models

7.8. Circuit diagram of synchronous machine

7.9. One-bit and two-bit input sequence detectors

8. Digital Integrated Circuits

5 hrs

8.1. BJT and MOSFET switching circuits

8.2. TTL parameters

8.3. TTL circuits: NAND, NOT, NOR

8.4. CMOS parameters

8.5. CMOS logic circuits: NAND, NOR, NOT

8.6. Three-state TTL devices

8.7. Digital devices applications

Multiplexing displays

Frequency counters

Time measurements

Laboratory Works

Practical sessions covering basic gates, De Morgan's law, encoders, decoders, multiplexers, demultiplexers, binary arithmetic circuits, flip-flops, shift registers, and counters through hands-on circuit realization.

1.Basic gates, universal gates and exclusive gates
2.De'Morgan's law and its familiarization with NAND and NOR Gates
3.Encoders and decoders
4.Multiplexers and demultiplexers
5.Binary addition and subtraction
6.Latches, RS, and T flip-flops
7.D and JK flip-flop and master-slave flip-flop
8.Shift registers
9.Circuit realizations on ripple counters
10.Circuit realizations on synchronous counters

Text Books

1.Floyd, T. L. (2015). Digital fundamentals. Pearson Education.
2.Mano, M. M. (1995). Digital design (Latest Edition). Prentice Hall.

Reference Books

1.Leach, D.P., Malvino, A.P., Saha, G. (2012). Digital principles and applications. Tata McGraw-Hill Education.
2.Fletcher, W.I. (1980). An engineering approach to digital design (Latest Edition). Prentice-Hall.
3.Gothmann, W.H. (1982). Digital electronics: An introduction to theory and practice (Latest Edition). Prentice-Hall.

Digital Logic

Digital Logic

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Digital Logic

Course Description

Course Objectives

Course Contents

Laboratory Works

Text Books

Reference Books

Notes: