STM32WL55 and STM32WLE5 HW compatibility

[MMici.1]

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

[STTwo-32 · Accepted solution]

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