Digital Electronics Premium Lecture Notes (All 5 Units) Prepared and provided byMohana M Anbarasui (Venkateshwara Engineering college). Specially for Electronics And Communication Engineering. Syllabus Covered based on Anna University B.E Electronics and Communication Engineering.
Special Thanks To: Mohana M Anbarasu
Venkateshwara Engineering college
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Content:
Digital Electronics
UNIT-1
MINIMIZATION TECHNIQUES AND LOGIC GATES
UNIT – II
COMBINATIONAL CIRCUITS
UNIT-III
SEQUENTIAL LOGIC
UNIT-IV
MEMORY DEVICE
UNIT-V
SYNCHRONOUS AND ASYNCHRONOUS SEQUENTIAL CIRCUITS
UNIT-1
MINIMIZATION TECHNIQUES AND LOGIC GATES
Introduction
Minimization Techniques
Boolean postulates and laws
Rules of Boolean algebra
Demorgan’s theorems
Boolean expression
Product of sum simplification
Don’t care condition
The quine mcclusky method
Logic gates
NAND and NOR implementation
NAND circuits
Two level implementation
TTL (Transistor Transistor Logic)
CMOS Logic
UNIT – II
COMBINATIONAL CIRCUITS
Design procedure
Half adder
Full adder
Full sub tractor
Parallel binary adder
Binary multiplier
Multiplexer
Demultiplexer
Encoder
Decoder
Parity generator
Parity checker
BCD to binary conversion
BCD adder
UNIT-III
SEQUENTIAL LOGIC
Latches
Flip flops
Asynchronous ripple counter
Synchronous counter
Synchronous up/down counter
Shift register
Universal shift register
Shift register counter
UNIT-IV
MEMORY DEVICE
Classification of memory
1. Random access memory
2. Read only memory
ROM Organization
PROM (Programmable ROMs)
UV EPROM
EEPROM
Memory decoding
Memory expansion
Static RAM cell
Dynamic RAM cell
Programmable logic devices
Types of programmable logic device
UNIT-V
SYNCHRONOUS AND ASYNCHRONOUS SEQUENTIAL CIRCUITS
Synchronous sequential circuits
Classification and design
Mealy model
Moore model
Asynchronous sequential circuits
Problems in asynchronous circuits
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