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ICatu.1
Associate
Oct 18, 2022 3:29 PM UTC
Question

What is the number of times the non-volatile memory (NVM) on STUSB4500 can be written? I cannot find this information in the datasheet.

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    3 replies

    NBALL
    ST Employee
    Oct 20, 2022 11:36 AM UTC

    Hello

    We can write 1K time the NVM.

    Anyhow, I'm curious to understand why your application needs to write so many time STUSB4500 NVM.

    Usually, NVM stores mandatory setup to power up and then, if PDOs for example, needs to be changed 'in live', this is done using I2C registers (see https://www.st.com/content/st_com/en/products/embedded-software/evaluation-tool-software/stsw-stusb003.html software package)

    Best regards

    ICatu.1
    ICatu.1Author
    Associate
    Oct 20, 2022 1:29 PM UTC

    Thank you for your answer!

    The question was more for development purposes. In development, we have already written the NVM on our development board several tens of times, and I was worried we would wear out our memory and need another development board. But it seems we still have some writes to go before that happens. :)

    We do not intend to write the NVM so many times on our intended application.

    Best Regards!

    NBALL
    ST Employee
    Oct 20, 2022 4:28 PM UTC

    OK great :)

    Best regards