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SYLLABUS

Unit-1:

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 Quine-McCluskey method of minimization.

Unit-2:

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-3:

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-4:

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-5:

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.