quote=Kai
Do you really need to build it?

I will start with the PCB design of the dispenser unit with enhanced debouncing (one with CD4093) coming monday, since that is the one that best suits my application.
I will let you know about it.

I considered micro for levels of precision especially.
Also i couldnt use the micro based one given by you is just because i am unable to get the decimal to BCD conversion switches nearby.
secondly, i have already done a micro based project so i thought why again work with same components if not some thing new with it and also same type of PCB design!
But i got resonable info from your code on 'how efficiently codes could be developed (like concentrating in timing issues and logic!)
Thanks for that.
I bought that CD4541 to your notice since i saw that being used in the existing unit and thought of knowing how to use it in general and if possible in our circuit.

I went through its datasheet and found no application circuits for having better understanding. Hence not able to use it directly in the circuit. so though of discussing with you on its funtionalities to use it correctly.
I dont want you to design it for me unless you find it would be necessary but, if possible, give your description or ideas regarding it or any thing relevent i ask. I would try to design and get it checked with you people. Hope you could help me with that.

Thanking you,
Suresh.