Content originally posted in LPCWare by bavarian on Wed Jan 13 07:44:00 MST 2016
No sure what you mean with "bypassing of the power". Maybe you want to have some more information about bypass capacitors.
This depends a little bit on your needs and also on the effort you can spend on a board.
The better the power supply structure is (supply itself and the PCB design), the less important the bypass capacitors are.
If you run the chip with high speed interfaces like the memory interface, then you should place, depending on your PCB design, suitable capacitors on the power supply pins to filter out the high frequency noise.
However, there is no fixed recommendation for this, it's more a rule of thumb thing. The only thing I could say is, that the standard 100nF caps used on most of the eval boards are not really the best choice for this. These values were more useful in the time of the 8MHz controllers.
Regards,
NXP Support Team.
