2008 | OriginalPaper | Chapter
Sequential Logic Systems
Authors : Dr.-Ing. Ulrich Tietze, Dr.-Ing. Christoph Schenk, Dr.-Ing. Eberhard Gamm
Published in: Electronic Circuits
Publisher: Springer Berlin Heidelberg
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A sequential logic system is an arrangement of digital circuits that can carry out logic operations and, in addition, store the states of individual variables. It differs from a combinatorial logic system in that the output variables y j are not only dependent on the input variable x i , but also on the previous history, which is represented by the state of flip-flops. In what follows, we shall first discuss the design and operation of integrated flip-flops.