4

Design of Combinational Circuits

LEARNING OBJECTIVES

After studying this chapter, you will know about:

  • Encoders, decoder, multiplexer, demultiplexer.
  • Modular expansion.
  • Parity bit generator.
  • Priority encoder.
  • Logic of programmable logic devices such as ROM, PROM, PLA and PAL and their applications.
  • Static and dynamic hazards that can be identified and the techniques of eliminating static hazards by design.
  • Code converters.
  • Magnitude comparators.
  • Adders and high speed adders.
  • Subtractors.

The proceeding chapters demonstrated how switching functions are obtained from a given word statement of a problem and the different techniques of simplifying such functions. This chapter is devoted to familiarising the learner with the various combinational ...

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