# Digital Logic Design & applications

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Number Systems Decimal, Binary, Octal and hexadecimal number system and conversion, Binary weighted codes and inter-conversion, Binary arithmetic including 1's complement and 2's complement, Error detection and correction codes. Boolean Algebra and Combinational Logic Boolean algebra theorems, Realization of switching functions using logic gates, Canonical logic forms, Sum of product and product of sums, Karnaugh maps, Simplification of expressions, Variable entered maps, Quine-McCluskey minimization techniques, Mixed logic combinational circuits and multiple output functions. Analysis and Design of Combinational Logic Combinational circuit, Decoder, Encoder, Priority encoder, Multiplexers as function generators, Binary adder, Subtractor. BCD adder, Binary comparator, Arithmetic and logic units. Sequential Logic : Sequential Circuits, Analysis and Design Triggered flip-flops, Timing specifications, Asynchronous and synchronous counters, Counter design with state equations, Registers, Bidirectional shift registers. Programmable Logic Devices PLAs, PALs, CPLD, FPGA Architectures, Finite state machines - Mealy and Moore design, Introduction to VHDL, Implementation of above combinational and sequential circuits using VHDL , Examples of system design applications like Washing machine, Candy vending machine, Traffic lights. CAD Tools Computer aided synthesis and optimization, Circuit models, Synthesis, Optimization, Computer aided simulation, Verification, Testing and design for testability.We have seen 2-bit comparator in chapter 4. If the number of bits to be compared is more than two bits, the truth tables and hence the circuit becomes more ... Thus , we can implement 3-bit comparator with some different approach. ... Let us assume A is greater than B. This condition can be written as Aagt;B=agt; A-B agt;0 =agt; A + B+ 1 agt; 0 v B+ 1 is 2a#39;s ... 5.21 shows the circuit diagram of comparator for n = 3.

 Title : Digital Logic Design & applications Author : A.P.Godse, D.A.Godse Publisher : Technical Publications - 2008-01-01