Digital Electronic Circuits (1BEE304)

Digital Electronic Circuits

Course Code 1BEE304 
Scheme 2025
Type of Course Professional Core 
Course Semester III
Teaching Hours/Week (L:T:P) 3:0: 0
CIE Marks 50
Total Hours of Pedagogy L /T/P/SL&TW: 42:0:0:48 
SEE Marks 50
Credits 3 
Total Marks 100
Examination type (SEE) Theory 
Exam Hours 3

Module-1

Principles of Combinational Logic: Definition of combinational logic, canonical forms, Generation of switching equations from truth tables, Karnaugh maps-3,4,5 variables, incompletely specified functions (Don‘t care terms) Simplifying Max term equations, Quine-McCluskey minimization technique, QuineMcCluskey using don‘t care terms, Reduced prime implicants Tables. Design with Basic gates, NAND gates and NOR gates.

Module-2

Analysis and Design of Combinational logic: General approach to combinational logic design, Decoders, BCD decoders, Encoders, digital multiplexers, using multiplexers as Boolean function generators, Adders and subtractors, Cascading full adders, Look ahead carry, Binary comparators.

Module-3

Flip-Flops: Basic Bistable elements, Latches, Timing considerations, The master-slave flip-flops (pulse triggered flip-flops): SR flip-flops, JK flip-flops, Edge triggered flip- flops, Characteristic equations.

Flip-Flops Applications: Registers, binary ripple counters, synchronous binary counters, Counters based on shift registers, Design of a synchronous counter, Design of a synchronous mod-n counter using clocked T, JK, D and SR flip-flops.

Module-4

Sequential systems: Analysis of Clocked Sequential circuits, State Reduction and Assignment, Design Procedure, Design with State Equations, Sequence detector.

Sequential Circuit Design: Mealy and Moore models, State machine notation, Synchronous Sequential circuit analysis. Construction of state diagrams, counter design.

Module-5

Memories: Read only and Read/Write Memories, Programmable ROM, EPROM, Flash memory.

Logic Families: Characteristic of Digital ICs, Transistor – Transistor Logic (NOT, NAND, NOR), Complementary MOS Logic (NOT, NAND, NOR), Comparison of TTL and CMOS families.

Textbooks

(i) Digital Principles and Design, Donald D. Givone, McGraw Hill,2002.

(ii) Digital Design, Morris Mano, Prentice Hall of India, Third Edition.

Reference Books

(i) Digital Logic Applications and Design, John M Yarbrough, Thomson Learning, 2001.

(ii) Fundamentals of logic design, Charles H Roth,Jr, Cengage Learning. Fifth Edition.

(iii) Digital Systems Design, A Nagoor Kani, CBS Publishers and Distributors, 2026.