Convert a single input pulse into a finite sequence of pulses.
AC-coupled input pulse is debounced with a 555 IC and fed into the D flip-flop which in turn inhibits or allows clock signal to be fed into the decade counter.
When the pulse sequence completes, the D flip-flop is reset.
This functionality can definitely be implemented with a microcontroller and a simple interrupt handler, but whatever... Discrete logic is always fun.
Possible usage:
1) Combine with the LED chaser ([ Ссылка ]) circuit to produce exactly one long slide over all LEDs
2) Generate a correct reset sequence (no less than N pulses) for an Intel 8080 or a similar CPU
#counter #555timer #logic #electronics #ledchaser #reset
