User manual

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Fig. 49: Buttons at J and K
17 Slide Register
A slide register pushes input conditions one stage forward at every
cycle impulse. The 4027 can be used to set up two stages. The cycle
signal is now applied in parallel to both clock inputs. The input has two
buttons at J and K again. The connection to the next stage is decisive.
Q leads to J and /Q to K. In case of a positive cycle flank, the first
flipflop assumes the unequal conditions at J and K. At the same time,
the second JK flipflop still assumes the old conditions of the first flipflop,
because the new conditions only take effect with a short delay after the
cycle flank.