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How to connect 10 no of EEPROM I2C slave ICs in I2C bus?

Saravanakumar S93
Expert 1300 points

Hello All,

Currently, I2C based EEPROM ICs are available with 3 bit slave addressing options.

Hence, we can connect maximum 9 EEPROM ICs in the bus.

How to connect 10 no of EEPROM ICs in the I2C bus? Is this possible?

Regards,

S.Saravanakumar

  • 0
    TI__Mastermind 23326 points

    Hello S.Saravanakumar,

    Typically people will use a MUX to connect to devices that have the same address and simply switch between channels to either write or read.  Additionally it helps distribute capacitive loading which is helpful to stay within the 400pF requirement outlined in the I2C specifications.  Here is the datasheet for a 2 channel mux, we have mux that have up to 8 channels. 

    http://www.ti.com/lit/ds/symlink/tca9543a.pdf

    -Francis Houde