The 74HC(T)4520 is a dual 4-bit synchronous binary counter featuring standard output capability and MSI ICC category. This device is suitable for applications such as multistage synchronous counting, ...
What’s one to do with some nice little relays of questionable pinout, and prototyping board? How about a quietly clicky 4-bit counter using relay logic with tons of buttons? The register with LEDs and ...
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