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Associate II
Feb 27, 2025 9:59 PM UTC
Solved

STM32U5A5VJT6Q VDD11 connection

Hi,

STM32U5A5VJT6Q has 2 VDD11 pins. Should these be connected together using an external trace on a PCB? I did look at Nucleo U5A5ZJ-Q schematic but I'm still not sure.
Thanks,
Adam

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tjaekelBest answer
Lead II
Mar 1, 2025 3:17 AM UTC

Yes, both VDD11 are connected together.
Just to check, that the total capacitor on VDD11 does not exceed 4.7mircoF.
(so, every VDD11 can have its own cap, but in total not above the max.)

Here my schematics:

tjaekel_0-1740798977250.png

 

1 reply

tjaekelBest answer
Lead II
Mar 1, 2025 3:17 AM UTC

Yes, both VDD11 are connected together.
Just to check, that the total capacitor on VDD11 does not exceed 4.7mircoF.
(so, every VDD11 can have its own cap, but in total not above the max.)

Here my schematics:

tjaekel_0-1740798977250.png