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DAC43401: digital I/O specs

Julian Merlin
Prodigy 60 points
Part Number: DAC43401

Tool/software:

Hello,

the datasheet of the DAC43401 lacks specifications for  the digital I/Os:

- output low voltage (SDA)

-  leakage currents (SDA,SCL)

If I understand the recommended operating conditions  (Vih min 1.65V) correctly it should be no problem to have Vdd=5V but use SDA,SCL pull-ups to 3.3V?

  • 0
    TI__Mastermind 41563 points

    Hello Julian, 

    This device adheres to the I2C bus standard specification for the two specs you asked for. 

    - output low voltage (SDA): 0.4V maximum

    - leakage currents (SDA,SCL): 10uA maximum

    You're correct, you can use 3.3V pullups with a 5V VDD. 

    Best,

    Katlynne Jones