Unit 1 Number Systems

7 lecture hours

• 1.1 Analog Vs Digital
• Introduction of Number Systems – Binary
• 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
• Hex. and vice versa. 1.4 Perform binary arithmetical operations -Binary Addition
• Binary Subtraction
• Binary Multiplication
• Binary Division with Examples. 1.5 1’s and 2’s Complement of Binary numbers. 1.6 Binary subtraction using 1’s and 2’s Complement method. 1.7 Concepts of Digital codes
• Non-weighted codes
• Alphanumeric Codes

Unit 2 Logic Gates & Boolean Algebra

7 lecture hours

• 2.1 Differentiate different logic levels - Concept of Positive Logic and negative Logic Levels
• Logic gates -NOT, AND, OR, NAND, NOR, EX-OR & EX-NOR: Symbol
• Equivalent Circuit & Truth-table. 2.2 NAND as Universal gates - Develop basic gates using NAND gate. 2.3 NOR as Universal gates - Develop basic gates using NOR gate. 2.4 Boolean Logic Operations
• Laws of Boolean Algebra. 2.5 De-Morgan’s Theorems. 2.6 Simplification of given Boolean equations. 2.7 Converting Boolean expressions to logic circuits

Unit 3 Boolean Function Implementation

• 3.1 Boolean Expression: Need for simplification. 3.2 Sum of Product (SOP) expressions and examples. 3.3 Product of Sum (POS) expressions and examples. 3.4Simplification by Karnaugh map method: 2 variable K-map
• 3 variable K-map. 3.54-variable K-map and Don’t-Care conditions 05 15 % GUJARAT TECHNOLOGICAL UNIVERSITY Program Name: Diploma Engineering Level: Diploma Branch: Renewable Energy Subject Code: DI04064011 Subject Name: Digital Electronics & Digital Instruments w.e.f. 2025-26 http://syllabus.gtu.ac.in/ Page 3 of 10 (Basic Problems)

Unit 4 Basic Combinational Circuits

9 lecture hours

• 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
• 1-8 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 Sequential Circuits

11 lecture hours

• 5.1 Introduction to Sequential Circuits
• Comparison between Combinational and Sequential Circuit. 5.2 Types of Flip-flops :- SR, D, T, JK, Master Slave JK Flip Flop 5.3 Explain the working of various Flip Flops with the help of truth table. 5.4 Applications of Flip-flops
• Use of flip-flops or latches to store data
• act as a memory device or transfer data through a shift register. 5.5 Describe the working of various types of shift registers. 5.6 4-bit Shift Register: Serial-In
• Serial-Out Shift Register
• Parallel-Out Shift Register
• Parallel-Out Shift Register using D flip flops. 5.9 Applications of Shift Registers. 5.10 Counters: Classification of Counters
• Comparison between Asynchronous and Synchronous counters. 5.11 Four-bit Decade counter: Block diagram using JK flip-flops
• truth table
• timing diagram and working

Unit 6 A to D And D to A Converters

6 lecture hours

• 6.1 Understand Analog to Digital and Digital to Analog Converters. 6.2 List the different types of A to D and D to A converters. 6.3A to D converter specifications: Resolution
• settling time. 6.4 Describe the working of various types of A to D Converters & necessity of A to D converters. 6.5 D to A converter specifications: Resolution
• settling time. 6.6 Describe the working of various types of D to A converters & necessity of D to A converters