Hi,
I’m designing a PCB with the STM32WLE5CCU6. I don’t plan to use the integrated RF (LoRa) section, but the MCU choice is fixed.
I couldn’t find clear guidance in the datasheet on how to power the device when the RF block is unused. I’d like to optimize the board and avoid populating connections/components that won’t be used.
Questions
Can the RF section be left unpowered entirely, or do certain rails still need to be supplied?
Do any RF-related pins need specific pull-ups/pull-downs, or can they be left floating?
Which RF-path components can be omitted without impacting MCU operation?
Are there any recommended pin straps or layout considerations for this use case?
Thank you!
Product page: https://www.st.com/en/microcontrollers-microprocessors/stm32wle5cc.html
