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Digital Techniques

By Dr. Sunanda Ambulker   |   NIT Puducherry
Learners enrolled: 306

The course “Digital Techniques” provides an in-depth understanding of the fundamental principles of digital electronics that form the foundation of all modern computing and communication systems. It is designed to help learners develop a clear conceptual and practical understanding of how digital systems represent, process, and store information using logical and electronic means.

The course begins by exploring how real-world numerical data and signals are represented in digital form through various number systems and coding techniques. Students will understand how digital circuits perform arithmetic operations and logical decision-making using binary logic.

Building on this foundation, the course delves into the essential elements of digital design — logic gates and Boolean algebra — which serve as the building blocks for all digital systems. Learners will acquire the skills to simplify logical expressions, optimize circuits, and implement digital functions efficiently.

The course further emphasizes the analysis and design of both combinational and sequential logic systems. Students will learn how to design circuits that perform specific logical and arithmetic operations, as well as systems that can store and process data based on timing and control signals. Topics such as flip-flops, registers, and counters are discussed in detail to help learners understand how memory and control are integrated into digital systems.

In addition, the course introduces the fundamental concepts of semiconductor memories and data storage. Learners will gain insight into the classification, structure, and operation of various memory types and their role in digital computing systems. along with that the course gives some application examples utilizing the digital techniques.

By the end of this course, participants will be able to apply digital design principles to build and optimize functional digital systems. The knowledge gained will serve as a strong foundation for advanced studies in fields such as microprocessors, embedded systems, VLSI design, and digital communication technologies.

Summary
Course Status : Upcoming
Course Type :
Language for course content : English
Duration : 4 weeks
Category :
  • Teacher Education
Credit Points : 2
Level : Diploma
Start Date : 26 Jan 2026
End Date : 30 Apr 2026
Enrollment Ends : 28 Feb 2026
Exam Date : 17 Jun 2026 IST
Translation Languages : English
NCrF Level   : 4.5 — 5.5
Industry Details : Education and Training
Exam Shift :

Shift 2

Note: This exam date is subject to change based on seat availability. You can check final exam date on your hall ticket.


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Course layout

Week 1: Number Systems, Binary Arithmetic & Boolean Algebra

  • Importance of digital systems in electronics
  • Number systems: Binary, Octal, Decimal, Hexadecimal
  • Conversion between number systems
  • Binary arithmetic: Addition, subtraction, multiplication, division
  • Signed numbers: 1’s and 2’s complement representation
  • Boolean variables and logic expressions
  • Basic postulates and theorems of Boolean algebra
  • Canonical forms: SOP and POS
  • Simplification using Boolean law

Outcome :

  • Understand and perform number conversions and binary arithmetic
  • Simplify and represent logical expressions using Boolean algebra

 

Week 2: Logic Gates, Combinational Circuits & K-Map Simplification

  • Basic logic gates: AND, OR, NOT, NAND, NOR, XOR, XNOR
  • Truth tables and logic symbols
  • Universal gates: NAND and NOR implementation
  • Introduction to logic families: TTL and CMOS
  • Half adder and full adder circuits
  • Half subtractor and full subtractor
  • Encoders and decoders: concept and applications
  • Karnaugh maps: 2, 3, and 4 variable
  • Grouping and minimization rules
  • Don’t care conditions and optimized circuit design

Outcome :

  • Design basic logic and arithmetic circuits
  • Minimize logic expressions using K-map techniques

 

Week 3: Logic Gates and Implementation using Universal Gates

  • Data selection and distribution concepts
  • Multiplexers (MUX): working and applications
  • Demultiplexers (DEMUX): working and applications
  • Realization of Boolean expressions using MUX
  • Combinational vs sequential logic circuits
  • Flip-flops: SR, JK, D, T (symbols, truth tables, operation)
  • Clocking and triggering concepts
  • Need for data storage in digital systems
  • Registers: serial and parallel
  • Shift registers: SISO, SIPO, PISO, PIPO

Outcome :

  • Understand the use of multiplexers (MUX) and demultiplexers (DEMUX) for logic design and data routing.
  • Understand the role of flip-flops and registers in data storage and control operations.

 

Week 4: Counters, Memory & Embedded/IoT Applications

  • Concept of counting in digital systems
  • Asynchronous (ripple) counters
  • Synchronous counters
  • Up, down, and mod counters
  • Applications: digital clocks, frequency division
  • State diagrams and state tables
  • State reduction and assignment
  • Design of simple sequence detectors
  • Memory concepts and storage hierarchy
  • ROM, PROM, EEPROM
  • RAM: SRAM and DRAM
  • Role of digital electronics in embedded systems
  • Applications in automation, sensors, and control
  • Overview of microcontrollers and digital interfacing
  • Emerging trends in digital electronics and IoT

Outcome :

  • Design and analyze counters and sequential circuits.
  • Understand memory devices.
  • Relate digital electronics to embedded and IoT applications.

Books and references

1. M. Morris Mano and Michael D. Ciletti, Digital Design, Pearson Education, 5th Edition.
2. R. P. Jain, Modern Digital Electronics, Tata McGraw Hill, 4th Edition.
3. Thomas L. Floyd, Digital Fundamentals, Pearson Education, 11th Edition.
4. Charles H. Roth and Larry L. Kinney, Fundamentals of Logic Design, Cengage Learning, 7th Edition.

Instructor bio

Dr. Sunanda Ambulker

NIT Puducherry
Dr. Sunanda Ambulker is an Assistant Professor in the Department of Electronics and Communication
Engineering at NIT Puducherry. She has worked on the SMDP-C2SD project at IIIT Allahabad, where she
contributed to the fabrication of a transceiver for the LoRa band. Her research interests include the Internet
of Things (IoT), memory design, and analog and RF circuit design, with emphasis on developing VCOs, PLLs,
and frequency synthesizers for mmWave applications.
Dr. Ambulker received the First Prize for Paper Presentation at Cognizance 2007, IIT Roorkee, and the Young
Scientist Award in Electrical and Electronics Engineering at the 32nd Young Scientist Congress organized by
the Madhya Pradesh Council of Science and Technology (MPCST) in 2017. She was also awarded the MPCST
Fellowship for the Training of Young Scientists the same year.
Her teaching and academic interests include IoT, Microprocessors, Digital Electronics, VLSI Design and CMOS
RF circuit design.

Course certificate

"The SWAYAM Course Enrolment and learning is free. However, to obtain a certificate, the learner must register and take the proctored exam in person at one of the designated exam centres. The registration URL will be announced by NTA once the registration form becomes available. To receive the certification, you need to complete the online registration form and pay the examination fee. Additional details, including any updates, will be provided upon the publication of the exam registration form. For more information about the exam locations and the terms associated with completing the form, please refer to the form itself."

Grading Policy:

- Internal Assignment Score: This accounts for 30% of the final grade and is calculated based on the average of the best three assignments out of all the assignments given in the course.

- Final Proctored Exam Score: This makes up 70% of the final grade and is derived from the proctored exam score out of 100.

- Final Score: The final score is the sum of the average assignment score and the exam score.

Eligibility for Certification:

- To qualify for a certificate, you must achieve an average assignment score of at least 10 out of 30, and an exam score of at least 30 out of 70. If one of the 2 criteria is not met, you will not get the certificate even if the Final score >=40/100.
Certificate Details:

- The certificate will include your name, photograph, roll number, and the percentage score from the final exam. It will also feature the logos of the Ministry of Education, SWAYAM, and NITTTR.

- Certificate Format: Only electronic certificates (e-certificates) will be issued; hard copies will not be dispatched.

Once again, thanks for your interest in our online courses and certification. Happy Learning.
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