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LDC2112: I2C Interface max. Low Level

Alexander Raisle
Prodigy 120 points
Part Number: LDC2112

Hello everybody,

according to datasheet the I2C-Interface of the LDC2112 allows an Input low voltage of 0.3xVDD, so 0.3x1.8V=0.54V.

Is this the min voltage to recognize a low level?

How high can the voltage level rise and the device still recognize it as low level? Still recognize a low level at for example 0.8V?

Best regards, Alexander

  • +1
    TI__Mastermind 18545 points

    Hello Alexander, 

    The 0.3xVDD is the maximum voltage level required for an I2C input to be recognized as low while 0.7xVDD is the minimum voltage level for an input to be recognized as high. Anything in between the two values can result in unexpected behavior and is not recommended. 

    Best Regards, 

    Justin Beigel