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TCAN332G: Can TCAN332G communicate with SN65HVD233DR?

Seasat Liu
Intellectual 1040 points
Part Number: TCAN332G
Other Parts Discussed in Thread: TCAN332, SN65HVD233

Can TCAN332G communicate with SN65HVD233DR?

At present, CTM old product CAN socket is sn65hvd233dr, and the new one they want use is tcan332g which supports FD.

When using 500kbps rate, CAN the new and old device communicate normally? (physical connection interface has been confirmed and supported)

According to datasheet, there is a difference of 0.45v in the Recessive level between the two chips. TCAN3323G is 1.85V and SN64HVD233 is 2.3V

Will it cause chip damage? What is the output structure of CANH\L pin?

  • 0
    TI__Guru 50795 points

    Hi Seasat,

    Yes, these devices should have no problem interfacing with each other through a CAN bus. They both support similar data-rates and are compatible with the ISO11898 standard. 

    When these devices are enabled and driving a recessive level, the bias towards the specified Vo is very weak (high-resistance internal resistors). Figures for a simplified recessive common mode bias unit can be found in sections 11.1 and 10.4.1 of SN65HVD233 and TCAN332 datasheets respectively. The difference in specified recessive voltage levels should not cause damage nor cause communication issues in normal CAN application.

    Let me know if you have any more questions.

    Regards,

    Eric