3.3V and 5V on a single board

I started designing a new board for Alarm security system today, It would be having components that would be running on 3.3V and some at 5V. Although I can power micro-controller by 3.3V, but still I would require it to run at higher frequency, and Max485 wont work on something very close to 3.3V, not even at 3.9V. So I browsed some forums to check what are the best approaches and came across this document called 3V Tips ‘n Tricks by Microchip. Its so useful that I wished to share it here.

Cheers

DOWNLOAD  LINK:
http://www.microchip.com/stellent/groups/techpub_sg/documents/devicedoc/en026368.pdf

3V TIPS  AND TRICKS (mirror on dms)

The Complete Book:
ww1.microchip.com/downloads/en/DeviceDoc/01146B.pdf 

Mirror

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Dost Muhammad Shah

Dost Muhammad specializing in Embedded Design, Firmware development, PCB designing , testing and prototyping. He enjoys sharing his experience with others .Get in touch with Dost on Twitter or via Contact form

 

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