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Chai T. Rex (talk | contribs) →Two-level versus multi-level representations: Better style for the distinction between combinational and sequential logic. |
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Similarly, we distinguish between [[Combinational logic|combinational circuits]] and [[Sequential logic|sequential circuits]]. Combinational circuits produce their outputs based only on the current inputs. They can be represented by boolean [[Relation (mathematics)|relations]]. Some examples are [[priority encoder]]s, [[binary decoder]]s, [[multiplexer]]s, [[demultiplexer]]s.
Sequential circuits produce their output based on both current and past inputs, depending on a clock signal to distinguish the previous inputs from the current inputs. They can be represented by finite state machines. Some examples are [[Flip-flop (electronics)|flip-flops]] and [[Counter (digital)|counters]].
==Example==
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