pulse train counter hardware design

[madiger]

Hi everyone

I have a train of pulses coming in at a varying frequency. I want to design a circuit with a counter that counts these clock cycles on an 8 bit counter, having the counter end/reset every second, sending what has been counted to a processor. Any suggestions?

 

[explorick]

74HC393 could be used for your application and should be connected as below.

The data sheet is **broken link removed**.
The reset pulse for every second can be provided from the micro processor or a timer circuit could be used for this purpose.

 

[pictik]

You could use a PIC micro controller to count the number of pulses every second and then store the result in a register for processing or output the result to a i/o port to send to another processor.

 

[ark5230]

Please check the post below if it helps!

https://https://www.edaboard.com/threads/227803/

This gives all useful details.