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Missing I/Os, schematic errors on NUCLEO-U575ZI-Q

AVain.1
Associate

NUCLEO-U575ZI-Q  is based on a STM32U575ZIT6Q in LQFP144 package. A diagram on page 98 of the datasheet shows PC5 (pin 45), PB12 (pin 73), and PC4(Pin 44). None of these I/Os are exposed on the connectors of the NUCLEO-U575ZI-Q

https://www.st.com/resource/en/datasheet/stm32u575zi.pdf

Schematic diagram of the NUCLEO-U575ZI-Q doesn't even show these three I/Os:

https://www.st.com/resource/en/schematic_pack/mb1549-u575ziq-c03_schematic.pdf

Furthermore, schematic of the NUCLEO-U575ZI-Q shows STM32U575ZIT6Q with several pins labeled incorrectly. For example, Pin 33 is labeled PA0, while the datasheet of the IC shows PA0 at pin 34. There are several problems like this.

1 ACCEPTED SOLUTION

Accepted Solutions
PCH
ST Employee

Hello one important point, NUCLEO-U575ZI-Q is based on a SMPS package, not the legacy one. Please used figure on datasheet page 97. With LQFP144 SMPS it seems that Nucleo design is correct.

Please confirm?

Best Regards

View solution in original post

2 REPLIES 2
PCH
ST Employee

Hello one important point, NUCLEO-U575ZI-Q is based on a SMPS package, not the legacy one. Please used figure on datasheet page 97. With LQFP144 SMPS it seems that Nucleo design is correct.

Please confirm?

Best Regards

AVain.1
Associate

Thank you for the clarification.