2025-04-08 4:22 AM - last edited on 2025-04-08 4:32 AM by Andrew Neil
Hello all, for STM32H757xI in package WLCSP156, I didn't find a clear explanation about connecting capacitors for power supply.
According to the schematic from STM32H757xI kit, it looks like all VDD_MCU pins need to connect 100 nf capacitors,
Only in my case, I can do that, since not enough place on the PCB
I wanted to ask, does it have any opportunity to connect VDD_MCU pins to each other and connect to more powerful capacitors. If yes, how can I calculate nominal for capacitors in this case
I want to do like here
Solved! Go to Solution.
2025-04-08 4:29 AM - edited 2025-04-08 4:30 AM
@Ronil wrote:Hello all, for STM32H757xI in package WLCSP156, I didn't find a clear explanation about connecting capacitors for power supply.
According to the schematic from STM32H757xI kit, it looks like all VDD_MCU pins need to connect 100 nf capacitors
Did you see Application Note AN4938, Getting started with STM32H74xI/G and STM32H75xI/G MCU hardware development ?
via: https://www.st.com/en/microcontrollers-microprocessors/stm32h757xi.html#documentation
2025-04-08 4:29 AM - edited 2025-04-08 4:30 AM
@Ronil wrote:Hello all, for STM32H757xI in package WLCSP156, I didn't find a clear explanation about connecting capacitors for power supply.
According to the schematic from STM32H757xI kit, it looks like all VDD_MCU pins need to connect 100 nf capacitors
Did you see Application Note AN4938, Getting started with STM32H74xI/G and STM32H75xI/G MCU hardware development ?
via: https://www.st.com/en/microcontrollers-microprocessors/stm32h757xi.html#documentation
2025-04-08 6:47 AM
Thank you so much