ISO7842: pin7 in DWE package

Part Number: ISO7842

Tool/software:

Hi Expert, 

My customer is using ISO7842DWE package, for pin7, it is not connected in the datasheet, but customer want to connect 3.3V power with 300-500mA continues current.

I am not sure if this pin is high impendence or not, could afford this power supply. 

Br

Chi

  • Hi Chi,

    Thanks for your question.

    The NC pins on the device are not internally connected to the device. As long as the absolute maximum ratings are taken into consideration, a signal can be applied to a NC pin with no impact. Violating the absolute maximum ratings can damage the device and also void the warranty of the device.

    Regards,
    Aaditya Vittal