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Course Detail

Course Name Digital Circuits and Systems
Course Code 15ECE202
Program B. Tech. in Computer Science and Engineering, B. Tech. in Electronics and Communication Engineering
Semester Three
Year Taught 2019


Unit 1

Introduction to logic families: ECL – TTL – Tri state logic. Implementation technology: Transistor switches – NMOS logic gates – CMOS logic gates – Negative logic systems. Introduction to logic circuits: Variables and functions, inversion – Truth tables – Logic gates and Networks – Boolean algebra – Synthesis using gates – Design examples – Optimized implementation of logic functions: Karnaugh map – Strategy for minimization – Minimization of product of sums forms – Incompletely specified functions – Multiple output circuits – Tabular method for minimization – Number representation and arithmetic circuits: Addition of unsigned numbers – Signed numbers – Fast adders.

Unit 2

Combinational circuit building blocks: Multiplexers – Decoders – Encoders – Code converters – Arithmetic comparison circuits. Sequential circuit building blocks: Basic latch – Gated SR latch – Gated D latch – Master slave and edge triggered – D flipflops – T flip-flop – JK flip-flop – Registers – Counters – Reset synchronization – Other types of counters

Unit 3

Synchronous sequential circuits: Basic design steps – State assignment problem – Mealy state model – Serial adders – State minimization. Asynchronous sequential circuits:Analysis of asynchronous circuits.

Text Books

  1. Stephen Brown, ZvonkoVranesic, “Fundamentals of Digital logic with Verilog Design”, Tata McGraw Hill Publishing Company Limited, Special Indian Edition, 2007.


  • Morris Mano, Michael D. Ciletti “Digital Design – with introduction to Verilog HDL”, Pearson Education, Fifth Edition, 2011.
  • Charles H., Jr. Roth, LizyKurian John, Beyond Kill Lee, “Digital System Design Using Verilog”, Cengage Learning, 2015.
  • Donald D Givone, “Digital Principles and Design”, Tata McGraw Hill Publishing Company Limited, 2003

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