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[FAQ] AM62A7-Q1: how to connect the pin net VDDSHV4, VDDSHV5, and VDDSHV6 if SD card is not used

pengfei Zeng
Prodigy 40 points
Part Number: AM62A7-Q1

SD cards is not need in our project using AM62A7-Q1.  if SD card is not used,  how to connect the pin net VDDSHV4, VDDSHV5, and VDDSHV6 of AM62A7-Q1?  leave it open or connected directly to VSS or ? 

  • 0
    TI__Guru 59125 points

    There is a note in the datasheet that says, "All power pins must be supplied with the voltages specified in Section 7.4, Recommended Operating Conditions, unless otherwise specified."  This includes the VDDSHV4, VDDSHV5, and VDDSHV6 power rails.  In your case, these power rails should be connected to one of the other fixed 1.8V or 3.3V IO power sources, where they are sequenced on/off as required for the associated power rail(s).

    Regards,
    Paul