Is there have 2-Layer Reference design based on SMDs with STM32WL UFBGA MCU ?

[malarab]

Hello,

Is there have 2-Layer Reference design based on SMDs with STM32WL UFBGA MCU ?

Thank you,

Sincerely

[TDK]

Unlikely. The NUCLEO-WL55JC is 4 layer. Take the top layer from that and see if you can fan out sufficiently on the bottom layer. Cap placement won't be ideal.

https://www.st.com/en/evaluation-tools/nucleo-wl55jc.html#cad-resources