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STM32WL55 and STM32WLE5 HW compatibility

MMici.1
Associate II

Hi,

I would like to confirm that STM32WL55 and STM32WLE5 are mutually HW compatible from the point of external circuitry? I.e. can we use either one in a PCB originaly designed for one of them w/o any modifications? (Yes, I checked both datasheets but better to be safe than botching ;))

I know that "The STM32WL55 is a Dual core MCU (cortex-M4 and cortex-M0+) but the STM32WLE5 is using only one core (cortex-M4)." so there might be a difference from the FW perspecitve. 

 

Thank you

1 ACCEPTED SOLUTION

Accepted Solutions
STTwo-32
ST Employee

Hello @MMici.1 

From a HW point of view:

  • There is no difference in pin description.
  • There is difference in secure boot loader, Security and M0+ Core.
  • There is nothing to worry about in the H/W configuration.
  • Difference in standby time due to difference in current consumption.

Best Regards.

STTwo-32

 

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.

View solution in original post

1 REPLY 1
STTwo-32
ST Employee

Hello @MMici.1 

From a HW point of view:

  • There is no difference in pin description.
  • There is difference in secure boot loader, Security and M0+ Core.
  • There is nothing to worry about in the H/W configuration.
  • Difference in standby time due to difference in current consumption.

Best Regards.

STTwo-32

 

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.