MCU-free frequency counter, which one to build?

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neazoi

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Hello, I would like to build an mcu-free frequency counter 50MHz max with 1Hz resolution and 8 comon cathode seven segment displays. The simplest I have found is this one **broken link removed**
Have you seen any simpler one?

Also, is there an MCU-based project with the above specs that uses a max of 28-pin DIP MCU?
 

See some project :
 

Attachments

  • !!! 3.5GHz LCD Frequency Counter PIC16F84.rar
    1.7 MB · Views: 42
  • !!! 10MHz Frequency Counter PIC16F628.rar
    418.9 KB · Views: 55
  • !!! 50MHz Frequency Counter PIC16F628.rar
    749.9 KB · Views: 49
  • !!! 60MHz Frequency Meter PIC16F84.rar
    2.2 MB · Views: 47

tpetar said:
See some project :
Click to expand...
Thanks, but I told you, I would like to use common cathode 7-segment displays and NOT an lcd

- - - Updated - - -

neazoi said:
Thanks, but I told you, I would like to use common cathode 7-segment displays and NOT an lcd
Click to expand...

The only MCU-based project I have found is this one http://www.best-microcontroller-projects.com/frequency-counter-circuit.html but he uses a huge MCU and most of the pins are unused, what is the point of doing so?
 

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