very basic counter using 7400 series logic chips
Switch branches/tags
Nothing to show
Clone or download
Fetching latest commit…
Cannot retrieve the latest commit at this time.
Permalink
Failed to load latest commit information.
README.txt
counter.brd
counter.sch

README.txt

7400 Series 7 Segment Counter

Simple counter based on the 74191 up/down counter and 7447 BCD to 7 segment driver logic chips.

Input can be provided by 4 DIP switches, a load button, and a clock button. It would not take much work at all to add a 555 timer in order to generate clock pulses for the 74191. The clock button has no debouncing, so the counter may increment more than one number when pushed.