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February 27, 2025
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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

    This topic has been closed for replies.
    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

    tjaekelAnswer
    Visitor 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