Pulse counter

This demonstration, shows how the 4026 decade counters can count this can be achieved by pulsing the input, form either a pulse counter as shown in photo, or by  a micro-controller or other electronic device.

pulse counter
connection from pulse counter
decade counter connections
showing decade counter connections

 

 

 

 

 

if the carry out of the least significant bit (lsb) is connected to the clk-in of the next counter a max count of 99 can be realised. These counters can also be used individually too.  A final stage can also be used as the carry out of the most significant bit (msb), this could be used to trigger another device or micro, on the count of 50.