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TCAN1164-Q1: NC pin left floating or GND

Khai Nguyen
Intellectual 1665 points

Part Number: TCAN1164-Q1

Hi, for this device we see that the layout examples leaves the NC pins e.g. pin 9 floating. 

Is there any risks involved connecting it to GND? This is what has been done at the moment. 

What is our recommondation?

Please respond to both questions, thanks

Best
Khai

  • 0
    TI__Mastermind 27342 points

    Hi Khai,

    Pin 9 used to be the Split pin on older transceivers that needed additional common mode biasing. However, modern transceivers no longer need this.

    Pin 9 is not internally connected so no concerns tying GND. Our recommendation is to keep it floating though.  

    Best,

    Ethan