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AM625: AM6254 power up sequence question

Mason Liu
Expert 4035 points

Part Number: AM625

Hi team, 

Will the external circuit(e.g SPI slave side) influence the AM6254 power up sequence? i mean if the SPI or other communication interface(slave side) power up first, will it introduce some current into the AM62 and mess up the AM62 power up sequence? 

I.MX8 seems like mentioned this in their datasheet, like the external circuit should power up after the MCU power up. 

Thanks.

BR

Mason

  • 0
    TI__Guru 64525 points

    Many of the AM62x pins are not fail-safe and they should not have any potential applied until their respective power rail has ramped to a valid level. For more information refer to the Absolute Maximum Ratings and Recommended Operating Conditions tables in the datasheet.

    Regards,
    Paul