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# DIGITAL LOGIC DESIGN

JNTUK R19 digital logic design syllabus & study notes:-

UNIT-I:- Digital Systems and Binary Numbers:-
Digital Systems, Binary Numbers, Octal and Hexadecimal Numbers, Complements of Numbers, Signed Binary Numbers, Arithmetic addition and subtraction, 4-bit codes: BCD, EXCESS 3, alphanumeric codes, 9’s complement, 2421, etc..

UNIT -II:- Concept of Boolean algebra:-
Basic Theorems and Properties of Boolean algebra, Boolean Functions, Canonical and Standard Forms, Minterms and Maxterms.
Gate level Minimization: Map Method, Three-Variable K-Map, Four Variable K-Maps. Products of Sum Simplification, Sum of Products Simplification, Don’t – Care Conditions, NAND and NOR Implementation, Exclusive‐OR Function.

UNIT-III:- Combinational Logic:-
Introduction, Analysis Procedure, Binary Adder–Subtractor, Binary Multiplier, Decoders, Encoders, Multiplexers, Demultiplexers, Priority Encoder, Code Converters, Magnitude Comparator, HDL Models of Combinational Circuits. Realization of Switching Functions Using PROM, PAL and PLA.

UNIT- IV:- Synchronous Sequential Logic:-
Introduction to Sequential Circuits, Storage Elements: Latches, Flip‐Flops, RS- Latch Using NAND and NOR Gates, Truth Tables. RS, JK, T and D Flip Flops, Truth and Excitation Tables, Conversion of Flip Flops.

UNIT -V:- Registers and Counters:-
Registers, Shift Registers, Ripple Counters, Synchronous Counters, Ring Counter, Johnson Counter.

➥HAND WRITTEN NOTES: -

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