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DS90UB941AS-Q1: DS90UB941AS-Q1 VDDIO &IIC Issue

Xiaoxiang Liu
Expert 3715 points
Part Number: DS90UB941AS-Q1

Hi team,

I have a question about 941.

1. When the VDDIO of 941 =1.8V, the level of I2C is 1.8V? Or can it be both 3.3V and 1.8V?

2. Could you elaborate on what REM_INTB does?

Thanks

Xiaoxiang

  • 0
    TI__Expert 7880 points

    Hi Xiaoxiang,

    "1. When the VDDIO of 941 =1.8V, the level of I2C is 1.8V? Or can it be both 3.3V and 1.8V?"

    It is recommended to have VDDIO and I2C that same value.

    "2. Could you elaborate on what REM_INTB does?"

    REM_INTB is Remote Interrupt Output pin, it mirrors the INTB_IN signal from the remote device. There is no need of a separate serializer register read to reset and change the status of this pin.

    Best Regards,

    Gil Abarca