74HC393

[rp dharmasena]

plz
how to make a function test circuit using LEDs for 74HC393 binary counter IC
thank you..

 

[cl10Greg]

The clock signal is a high to low transition so you would have a switch connected to the power supply with a 10kΩ resistor and a switch to goes to ground. You would have four LEDs connected with current limiting resistors to the outputs. You should be able to press the switch to pull it to ground and see the lights count in binary. There maybe some issue with this because of debounce and jitter so the button input might also need a capacitor to smooth out the input.

 

[rp dharmasena]

thank you cl10Greg..
can I use any MC for clock signal..

 

[cl10Greg]

You can use a micro if you like but I am thinking in this case a clock is just a set transition of high to low and can be done with just buttons