EC8392 Digital Electronics Study Materials

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EC8392 DIGITAL ELECTRONICS 

UNIT I DIGITAL FUNDAMENTALS 

Number Systems – Decimal, Binary, Octal, Hexadecimal, 1„s and 2„s complements, Codes – Binary,

BCD, Excess 3, Gray, Alphanumeric codes, Boolean theorems, Logic gates, Universal gates, Sum of

products and product of sums, Minterms and Maxterms, Karnaugh map Minimization and QuineMcCluskey method of minimization.

UNIT II COMBINATIONAL CIRCUIT DESIGN 

Design of Half and Full Adders, Half and Full Subtractors, Binary Parallel Adder – Carry look ahead

Adder, BCD Adder, Multiplexer, Demultiplexer, Magnitude Comparator, Decoder, Encoder, Priority

Encoder.

UNIT III SYNCHRONOUS SEQUENTIAL CIRCUITS 

Flip flops – SR, JK, T, D, Master/Slave FF – operation and excitation tables, Triggering of FF, Analysis and design of clocked sequential circuits – Design - Moore/Mealy models, state minimization, state assignment, circuit implementation – Design of Counters- Ripple Counters, Ring Counters, Shift registers, Universal Shift Register.

UNIT IV ASYNCHRONOUS SEQUENTIAL CIRCUITS 

Stable and Unstable states, output specifications, cycles and races, state reduction, race free

assignments, Hazards, Essential Hazards, Pulse mode sequential circuits, Design of Hazard free

circuits.

UNIT V MEMORY DEVICES AND DIGITAL INTEGRATED CIRCUITS 

Basic memory structure – ROM -PROM – EPROM – EEPROM –EAPROM, RAM – Static and dynamic RAM - Programmable Logic Devices – Programmable Logic Array (PLA) - Programmable Array Logic (PAL) – Field Programmable Gate Arrays (FPGA) - Implementation of combinational logic circuits using PLA, PAL. Digital integrated circuits: Logic levels, propagation delay, power dissipation, fan-out and fan-in, noise margin, logic families and their characteristics- RTL,TTL,ECL,CMOS

TEXT BOOK:

1. M. Morris Mano and Michael D. Ciletti, “Digital Design”, 5th Edition, Pearson, 2014.

REFERENCES

1. Charles H.Roth. “Fundamentals of Logic Design”, 6th Edition, Thomson Learning, 2013.

2. Thomas L. Floyd, “Digital Fundamentals”, 10th Edition, Pearson Education Inc, 2011

3. S.Salivahanan and S.Arivazhagan“Digital Electronics”, Ist Edition, Vikas Publishing House pvt

Ltd, 2012.

4. Anil K.Maini “Digital Electronics”, Wiley, 2014.

5. A.Anand Kumar “Fundamentals of Digital Circuits”, 4th Edition, PHI Learning Private Limited, 2016.

6. Soumitra Kumar Mandal “ Digital Electronics”, McGraw Hill Education Private Limited, 2016.

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