Digital Electronics Premium Lecture Notes - All Units - Thenmozhi Edition

Digital Electronics (EC2203) Premium Lecture Notes for Electronics and Commincation Engineering Contains All Units , Syllabus is based on Anna University R2008 Regulation - Thenmozhi Edition.

DIGITAL ELECTRONICS
UNIT-1
MINIMIZATION TECHNIQUES AND LOGIC GATES

• Laws of Boolean algebra
• Basic theorems and properties of Boolean algebra
• Demorgan’s theorems
• Consensus theorem
• M-notification
• Karnaugh map minimization: (k-map)
• Quine-mccluskey method of minimization
• Logic gates
• Comparison of CMOS-TTL families

UNIT-2
COMBINATION CIRCUITS

• Introduction
• Design procedure
• Multiplexers
• De multiplexers
• Decoders
• Encoders
• Priority encoder
• Code converters
• 1. Binary to BCD converter
• 2. BCD to binary converters
• 3. BCD to excess-3
• 4. Excess-3 to BCD
• 5. Binary to gray
• 6. Gray to binary
• Magnitude comparator

UNIT-3
SEQUENTIAL CIRCUITS

• Introduction
• Latches
• Types
• Edge triggering
• Conversion of flip-flops
• Application of flip-flops
• Counters
• Sequence generators
• Shift register counter
• Ring counter
• Universal shift register
• Synchronous counters
• Shift registers
• Types 
• Application

Unit-4
MEMORY DEVICES

• Introduction
• Memory unit
• Memory operation
• Write operation
• Read operation
• Classification of memories
• RAM: (random access memory)
• SRAM (static RAM)
• RAM organization
• Static RAM cell
• MOSFET RAM cell
• Dynamic RAM cell
• ROM cell
• PROM: (programmable ROM)
• EPROM (erasable PROM)
• EEPROM
• Memory cycle
• 1. Read cycle
• 2. Write cycle
• Memory decoding
• 1. Absolute decoding
• 2. Linear decoding
• Memory expansion
• Advantages of RAM, ROM
• Disadvantages of RAM, ROM
• PLD-Programmable Logic Devices
• Classification of PLDs
• Types
• Implementation of combinational circuit using PLA
• Field programmable GATE array (FPGA)

UNIT-5
SYNCHRONOUS AND ASYNCHRONOUS SEQUENTIAL CIRCUITS

• Introduction
• Moore model
• Melay model
• Analysis of synchronous sequential circuits
• Design with JK flip flops
• Algorithm state machine chart
• Asynchronous sequential circuits
• Types
• Design of pulse mode asynchronous sequential circuits
• Problems in asynchronous circuits