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TCA9517: TCA9517 and SN74AXC4T774RSVR Schematic Review

Wu Shu Yi
Prodigy 30 points
Part Number: TCA9517
Other Parts Discussed in Thread: TXU0304, SN74AXC4T774

Hi TI Team,

Please help to check the schematic diagram of TCA9717 is it feasible?

B/R

Adan Wu

  • +1
    Guru 277650 points

    In the part of the schematic that you have shown, everything looks OK.

    The TXU0304 would be simpler and cheaper than the SN74AXC4T774.

  • +1
    TI__Mastermind 25431 points

    Hey Adam,

    To further add on to Clemens response, it is suggested to populate R61~R63 for the I2C signals in order to propagate a signal high. It is also recommended to use 0.1uF for the values of the bypass capacitors (C72 and C73). However if the value you are currently using mitigates the visible noise, then it is OK as well. 

    Regards,

    Jack