DI02000161 · Semester 2 · 5G scheme
Fundamental of Digital Electronics
Notes and solutions following the Gujarat Technological University (GTU) syllabus for DI02000161. Independent material — not issued by the university.
Materials
Complete Book
The whole syllabus, unit by unit, written for the exam.
Complete Book
157 pages
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Past Papers
Original question papers from previous exams.
PYQ Solutions
Past university papers, fully solved.
Solved past papers — detailed answers
26 pages · English + ગુજરાતી
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Syllabus units
Unit 1: Unit 1 - Number Systems
- 1.1 Analog Vs Digital, Number Systems - Binary, Octal, Decimal, Hexadecimal Numbers
- 1.2 Conversion of Number from One Number System to Another Number System: Decimal to Other Number Systems and Vice versa
- 1.3 Conversion of Number between Binary, Octal, Hex. and Vice versa
- 1.4 Arithmetic Operations with Binary Numbers: Binary Addition, Subtraction, Multiplication and Division
- 1.5 1's and 2's Complement of Binary numbers. Binary subtraction using 1's and 2's Complement method
- 1.6 Concepts of Digital codes: Weighted Codes: BCD Code, Non- weighed codes: Gray Code, Excess-3 Code
Unit 2: Unit 2 - Logic Gates & Boolean Algebra
- 2.1 Positive & Negative Logic, Logic Gates: NOT, AND, OR, NAND, NOR, EX-OR & EX-NOR: Symbol, Equi. Circuit & Truth-table
- 2.2 NAND as Universal Gates
- 2.3 NOR as Universal Gates
- 2.4 Boolean Logic Operations, Laws of Boolean Algebra
- 2.5 De-Morgan's Theorems, Simplification of given Boolean equations
- 2.6 Converting Boolean expressions to logic circuits
Unit 3: Unit 3 - Boolean Function Implementation
- 3.1 Boolean Expression: Need for simplification
- 3.2 Sum of Product (SOP) and Product of Sum (POS) expressions
- 3.3 Simplification by Karnaugh map method: 2 variable K-map, 3 variable K-map
- 3.4 4-variable K-map and Don't-Care conditions (Basic Problems)
Unit 4: Unit 4 - Basic Combinational Circuits
- Arithmetic and Logical Combinational Circuits: Block diagram, Logic diagram, truth table and working:
- 4.1 Half Adder, Full Adder
- 4.2 Half Subtractor, Full Subtractor
- Data Transmission Combinational Circuit:
- 4.3 Multiplexers (Data Selectors) - 2 to 1 Mux, 4 to 1 Mux,
- 4.4 Multiplexers (Data Selectors) - 8 to 1 Mux, Applications.
- 4.5 Demultiplexer (Data Distributors): 1-2, 1-4, 1-8 Demultiplexer
- 4.6 Encoder: Octal to Binary (8 to 3) & Decimal to BCD Encoder
- 4.7 Decoder: 2 to 4 Decoder, 3 to 8 Decoder
- 4.8 Decoder: BCD to Seven Segment Decoder
Unit 5: Unit 5 -Basics of Sequential Circuits
- 5.1 Introduction to Sequential Circuits, Comparison between Combinational and Sequential Circuit, Flip-Flips: SR Flip Flop,
- 5.2 D Flip Flop, T Flip Flop
- 5.3 JK Flip Flop
- 5.4 Master Slave JK Flip Flop, Applications of Flip-flops
About this course
Digital electronics plays a vital role in all branches of engineering, particularly in electrical engineering. As digital systems continue to replace analog ones, the diploma engineering pass-outs are required to effectively engage with modern digital technology used across various industries, including consumer electronics, automation and control systems etc. Therefore, the fundamental knowledge of Number Systems, logic gates, basic combinational and sequential logic circuits as well as digital ICs will enable the students to design, interpret and maintain these digital systems. Therefore, this course is intended to provide this funda. Knowledge of digital electronics so that students will be able to tackle the increasing digital landscape of modern technology.