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JimRVLock
Associate
November 13, 2024
Solved

STM32WBA50KG I2S Function Pinout

The product page shows that the STM32WBA50KG supports I2S for a serial audio interface. I want to connect a Class-D Amp and cannot find any reference to I2S or SAI in the data sheet or programmers reference manual. Does the processor support I2S?

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STTwo-32
STTwo-32Best answer
ST Technical Moderator
November 14, 2024

Hello @JimRVLock 

As you can see on the top of the page 1646 of the RM0493 Rev 5, the SAI is Available only on STM32WBA54/55xx devices. So, the STM32WBA50KG does not support the SAI/I2S.

Best Regards.

STTwo-32 

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3 replies

HughDavenport111
Visitor II
November 14, 2024

Yes, the STM32WBA50KG includes various communication peripherals, including I2S functionality. This allows it to connect with audio devices such as Class D amplifiers.

STTwo-32
STTwo-32Best answer
ST Technical Moderator
November 14, 2024

Hello @JimRVLock 

As you can see on the top of the page 1646 of the RM0493 Rev 5, the SAI is Available only on STM32WBA54/55xx devices. So, the STM32WBA50KG does not support the SAI/I2S.

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.
    JimRVLockAuthor
    Associate
    November 14, 2024

    Understood and I upgraded to the STMWBA54.

    Just to be clear, the data in the product selector is wrong and should be corrected at some point, but it's not a problem at this point {see below screen shot}.

    JimRVLock_0-1731604191280.png

    Thank you for the information and quick response to my question.

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