Computing (FOLDOC) dictionary
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such that only one of the R and S inputs is enabled at any
both inputs of an RS flip-flop are active at the same time.
In a JK flip-flop the R and S inputs are renamed J and K
(after Jack Kilby
). The set input (J) is only enabled when
the flip-flop is reset and K when it is set.
If both J and K inputs are held active then the outputs will
change ("togle") on each falling edge of the clock. JK