Skip to main content
Associate II
February 27, 2025
Solved

STM32U5A5VJT6Q VDD11 connection

  • February 27, 2025
  • 1 reply
  • 588 views

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

Best answer by tjaekel

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
March 1, 2025

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