# Digital Logic and Design and Application

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Number Systems Decimal, Binary, Octal and hexadecimal number system and conversion, Number system's application e.g. shaft encoding, Binary weighted codes, Signed number binary order, 1's and 2's complement codes, All number system's arithmetic.Boolean Algebra : Binary logic functions, Boolean laws, Truth tables, Associative and distributive properties, DeMorgan's theorem, Realization of switching functions using logic gates. Combinational Logic Switching equations, Canonical logic forms, Sum of product a product of sum, Karnaugh maps, Two, three and four variable Karnaugh graph, Simplification of expression, Quine McCluskey minimization techniques, Mixed logic combinational circuits, Multiple output functions. Analysis and Design of Combinational Logic Combinational circuits, Multiplexer and demultiplexer, Multiplexers as function generator, Binary adder, Substractor, BCD adder, Binary comparator with physical applications, Arithmetic and logic units, Design of combinational circuits using statements. Sequential Logic Sequential circuits, Flip-flop conversions, Clocked and edge triggered flip-flops timing specifications, Timing analysis, State diagrams and tables, Transition tables, Excitation table and equations, Examples using flip-flops. Sequential Circuits Simple synchronous and asynchronous sequential circuit analysis, Different types of counters asynchronous and synchronous, Counter design with state equations, Registers, Different types of shift registers, Construction of state diagram and counter design. Digital Integrated Circuits Digital circuit logic levels, Propagation delay times, Power dissipation, Fan out and Fan in, Noise margin for popular logic families, TTL, TTL sub families, CMOS and their performance comparisonIn asynchronous sequential circuits, memory elements are either unclocked flip- flops or time delay elements. Therefore ... Sequential. Circuits. Fig. 9.1 shows the block diagram of an asynchronous sequential circuit. It consists of a combinational circuit and delay elements connected to form feedback loops. ... The combination circuit generates Y excitation variables which gives the next state of the circuit.

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