Should all VDD pins be explicitly connected to the VDD supply?

[WoutWG]

Hi,

I'm working on a very high density board with the nRF54L15-QFAA (we want to prevent using a CSP) and I'm running into some routing issues. While looking for optimizations, I was wondering if all the VDD pins need to be connected explicitly to the VDD supply (1.8V in my case)? I assume that all VDD pins are internally connected. If that's the case, I know that it's not best practice, but would it be problematic if I just provide a decoupling capacitor for a VDD pin without connecting it to the 1.8V line? In my case specifically it is regarding pin 10, if it matters.

Best,

Wout

[Jared]

Hi,

Yes all of these VDD pins should be connected to supply as in the reference design, that is what we have tested and know will work. I can't comment on the internal power design of the chip, but I can say that the chip is designed such that all VDD pins should be connected.

regards

Jared