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TAC5312-Q1: I2C pullup calculation

Praven Kumar C J
Intellectual 315 points

Part Number: TAC5312-Q1

Hi Team,

For Fast-mode Plus, should the bus capacitance considered be 5 pF or 550 pF?  based on this i will calculate Rpull-up Value.

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  • 0
    TI__Mastermind 36971 points

    Hello Praven, they are 2  different things: Cin is the  capacitance that each digital pin ( including  SDL or SDA)   on the IC  presents to outside world, whereas Cb is total capacitance that you  can have on the bus for the given mode . 

    Regards,

    Arash