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SN65HVD62: the pin5(DIR) 's Peripheral circuit connection

Xianrong Shang
Intellectual 855 points

Part Number: SN65HVD62

Hello.

I use the SN65HVD62 on the project TMA.

 If I don't use the RS485, I want to connect the SN65HVD62 with the MCU directly. is it reliable ? 

Because the pin5(DIR)  of SN65HVD62 is out, Can it be floating ?  I can't find the pin5's drawing.  the pin 5 is high active ? 

  

  • 0
    TI__Guru 62920 points
    Hi Xianrong,

    Yes, it is OK to connect HVD62 directly to an MCU's UART port rather than to an RS-485 transceiver. In that case, you could just leave the DIR pin disconnected (floating). This pin is a push-pull output that is high when data is being received via the coaxial connection.

    Please let us know if you have any further questions.

    Regards,
    Max