Do you really need that capacitor ? | Cypress Semiconductor
Do you really need that capacitor ?
I'm laying out a very space constrained PCB with a CY8C3446LTI-073. It's a 15mm diameter disc, which leaves very little room for other components. One thing I have noticed is that the device requires many capacitors (9). On such a tiny board, these start to become a real problem.
Are all of those capacitors really necessary? Can I get away without some of them? Especially considering that the board is so small, and none of the pins are far from the linear regulator's output capacitor.
For example, if I'm not using any of P0 for digital IO, can I drop the capacitor on the VDDIO0 pin?