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FDC2212-Q1: I/O equivalent ciucuit

Shinji Tsuji
Genius 14099 points
Part Number: FDC2212-Q1

Hi team,

Could you give me the I/O equivalent circuit of FDC2212-Q1 I/O pins?

SCL/SDA/CLKIN/ADDR/INTB/SD 

I would like to refer them to consider MCU interface. 

regards,

  • 0
    TI__Mastermind 18545 points

    Hello, 

    I am not sure what you mean by "equivalent circuit" for these pins. As for how to use these pins, the SCL/SDA are connected to the I2C of the MCU. CLKIN is connected to an external oscillator or tied to GND if unused. The ADDR pin needs to be either connected to VDD or GND depending on the desired address of the device. The INTB and SD can be connected to the MCU to get interrupt signals and control the shutdown status of the device. For more information on the shutdown mode, see section 9.4.4 of the datasheet. 

    Best Regards, 

    Justin Beigel

  • 0 in reply to Justin Beigel
    TI__Genius 14099 points

    Hi Justin-san,

    Thank you. But I need an equivalent circuit which is discussed like below thread. 

    I would like to asses the potential leakage path, pull up/down inside to design my power up/down sequence. 

    e2e.ti.com/.../2964739

    regards,

  • 0 in reply to Shinji Tsuji
    TI__Mastermind 18545 points

    Hello, 

    The equivalent circuit will be very similar to the one in the thread you referenced. We don't normally tabulate leakage for digital pins since it is small but we do have the maximum input current for the digital pins listed in the datasheet: 

    Best Regards, 

    Justin Beigel