DS90UH947-Q1: I2C Pull up value 400kHz

Jared Becker

Genius 11845 points

Part Number: DS90UH947-Q1

Hi Team,

If the I2C bus communicating with the 947 is operating at 400kHz, is it okay to use 2.2k pull ups?

Thanks,

Jared

0 Casey McCrea over 5 years ago

Hey Jared,

It is best to base this off of the I2C voltage and bus capacitance for the system. Here's a pretty good app note to help with the calculations: https://www.ti.com/lit/an/slva689/slva689.pdf?ts=1597438196893&ref_url=https%253A%252F%252Fwww.google.com%252F

Best Regards,

Casey

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