Digital Logic Syllabus (CSC 116) – TU BSc CSIT 1st Semester

Tribhuvan University
Institute of Science and Technology
Bachelor of Science in Computer Science and Information Technology

Course Description: This course covers the concepts of digital logic and switching networks. The course includes the fundamental concepts of Boolean algebra and its application for circuit analysis, multilevel gates networks, flip-flops, counters logic devices and synchronous and asynchronous sequential logic and digital integrated circuits.

Course Objective: The main objective of this course is to introduce the basic tools for the design of digital circuits and introducing methods and procedures suitable for a variety of digital design applications.

Course Contents

Unit 1: Binary Systems (6 Hrs.)

Digital Systems, Binary numbers, Number base conversion, Octal and hexadecimal numbers, compliments, Signed Binary numbers, Decimal codes (BCD, 2 4 2 1, 8 4 -2 -1, Excess 3, Gray Code), Binary Storage and Registers, Binary logic

Unit 2: Boolean algebra and Logic Gates (5 Hrs.)

Basic and Axiomatic definitions of Boolean algebra, Basic Theorems and properties of Boolean Algebra, Boolean Functions, Logic Operations, Logic Gates, Integrated Circuits

Unit 3: Simplification of Boolean Functions (5 Hrs.)

K-map, Two and Three variable maps, Four variable maps, product of sum simplification, NAND and NOR implementation, Don't Care conditions, Determinant and selection of Prime Implicants

Unit 4: Combinational Logic (5 Hrs.)

Design Procedure, Adders, Subtractors, Code Conversions, Analysis Procedure, Multilevel NAND and NOR Circuits, Exclusive-OR Circuits

Unit 5: Combinational Logic with MSI and LSI (8 Hrs.)

Binary Parallel Adder and Subtractor, Decimal Adder, Magnitude Comparator, Decoders and Encoders, Multiplexers, Read-only-Memory (ROM), Programmable Logic Array (PLA), Programmable Array Logic (PAL)

Unit 6: Synchronous and Asynchronous Sequential Logic (10 Hrs.)

Flip-Flops, Triggering of flip-flops, Analysis of clocked sequential circuits, Design with state equations and state reduction table, Introduction to Asynchronous circuits, Circuits with latches.

Unit 7: Registers and Counters (6 Hrs.)

Registers, Shift registers, Ripple Counters, Synchronous Counters, Timing Sequences, The memory

Laboratory Works

Students should be able to realize following digital logic circuits as a part of laboratory work.

• Familiarizations with logic gates
• Combinatorial Circuits
• Code Converters
• Design with Multiplexers
• Adders and Subtractors
• Flip-Flops
• Sequential Circuits
• Counters
• Clock Pulse Generator

Text Books

1. M. Morris Mano, “Digital Logic & Computer Design”

Reference Books

1. Brain Holdsworth, “Digital Logic Design”, Elsevier Science.
2. John Patrick Hayes, “Introduction to Digital Logic Design”, Addison-Wesley.
3. M. Morris Mano and Charles Kime, “Logic and Computer Design Fundamentals”, Pearson New International.