Digital Logic - Syllabus

Embark on a profound academic exploration as you delve into the Digital Logic course (DL) within the distinguished Tribhuvan university's BCA department. Aligned with the BCA Curriculum, this course (CACS105) seamlessly merges theoretical frameworks with practical sessions, ensuring a comprehensive understanding of the subject. Rigorous assessment based on a 60 + 20 + 20 marks system, coupled with a challenging passing threshold of , propels students to strive for excellence, fostering a deeper grasp of the course content.

This 3 credit-hour journey unfolds as a holistic learning experience, bridging theory and application. Beyond theoretical comprehension, students actively engage in practical sessions, acquiring valuable skills for real-world scenarios. Immerse yourself in this well-structured course, where each element, from the course description to interactive sessions, is meticulously crafted to shape a well-rounded and insightful academic experience.

Course Description 

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

Course Objectives 

The course has the following specific objectives:

• To perform conversion among different number systems

• To simplify logic functions

• To design combinational and sequential logic circuit

• To understand industrial application of logic system.

• To understand Digital IC analysis and its application

• Designing of programmable memory



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

Number Systems

 2.1 Binary, Octal, & Hexadecimal Number Syatems and Their Conversions

    2.1.1 Representation of Signed Numbers-Floating Point Number

    2.1.2 Binary Arithmetic

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

Combinational Logic Design

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:

    3.3.1 Postulates & Theorems

    3.3.2 Canonical Forms- Simplification of Logic Functions

3.5 Simplification of Logic Functions Using karnaugh Map.

    3.5.1 Analysis of SOP and POS Expression

3.6 Implementation of Combinational Logic Functions

    3.6.1 Encoders & Decoders

    3.6.2 Half Adder, & Full Adder

3.7 Implementation of Data Processing Circuits

    3.7.1 Multiplexers and De-Multiplexers

    3.7.2 Parallel Adder -Binary Adder- Parity Generator/Checker-Implementation of Logical     Functions Using Multiplexers.

3.8 Basic Concepts of Programmable Logic

    3.8.1 PROM

    3.8.2 EPROM

    3.8.3 PAL

    3.8.4 PLA


Counters & Registers

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

    4.1.1 Level Triggering and Edge Triggering 

    4.1.2 Excitation Tables

4.2 Asynchronous and Synchronous Counters

    4.2.1 Ripple Counter: Circuit and State Diagram and Timing Waveforms

    4.2.2 Ring Counter: Circuit and State Diagram and Timing Waveforms

    4.2.3 Modulus 1 Counter: Circuit and State Diagram and Timming Waveforms

    4.2.4 Modulus Counters (5, 7, 11) and Design Principle, Circuit and State Diagram 

    4.2.5 Synchronous Design of Above Counters, Circuit Diagrams and State Diagrams

4.3 Application of Counters

    4.3.1 Digital Watch

    4.3.2 Frequency Counter

4.4 Registers

    4.4.1 Serial in Parallel out Register

    4.4.2 Serial in Serial out Register

    4.4.3 Parallel in Serial out Registor

    4.4.4 Parallel in Parallel out Registor 

    4.4.5 Right Shift, Left Shift Registor

Sequential Logic Design

 5.1 Basic Models of Sequential Machines

  •     Concept of State 
  •     State Diagram

5.2 State Reduction through Partitioning and Implementation of Synchronous Sequential Circuits

5.3 Use of Flip-Flops in Realizing the Models

5.4 Counter Design

Lab works

 Laboratory Works 

1. Gates using Active and Passive Elements

2. Half Adder and Full Adder

3. 16:1 Multiplexer

4. 1:16 Demultiplexcer

5. Digital Watch by Counters

6. Shift Resistors