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Published in:
2017 | OriginalPaper | Chapter
4. Sequential Circuits
Authors : Jean-Pierre Deschamps, Elena Valderrama, Lluis Terés
Published in: Digital Systems
Publisher: Springer International Publishing
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Abstract
The digital systems that have been defined and implemented in the preceding chapters are combinational circuits. If the component delays are not taken into account, that means that the value of their output signals only depends on the values of their input signals at the same time. However, many digital system specifications cannot be implemented by combinational circuits because the value of an output signal could be a function of not only the value of the input signals at the same time, but also the value of the input signals at preceding times.