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Abstract?A frequently imposed restriction in theoretical treatments of asynchronous sequential circuits is that only one input variable be allowed to change during a transition. In this paper, we present three methods for realizing asynchronous sequential circuits allowing multiple-input changes, but requiring that all input changes associated with an input transition be completed within a specified time after the first change. We also show that a single delay element is sufficient in the realization of normal mode flow tables, under these conditions.
Index Terms?Asynchronous sequential circuits, multiple-input changes, single-delay realizations.

A. Friedman and P. Menon, "Synthesis of Asynchronous Sequential Circuits with Multiple-Input Changes," in IEEE Transactions on Computers, vol. 17, no. , pp. 559-566, 1968.
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