Could open drain pin of I2C from MMA7660FC drive 2k2 resistor at 3.3V?

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Could open drain pin of I2C from MMA7660FC drive 2k2 resistor at 3.3V?

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michaelbonani
Contributor I

I do not found in datasheet the maximum current this pin can drive and it is only suggest to use 4k7.

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reyes
NXP TechSupport
NXP TechSupport

Hi Michael,

Yes this is fine. Changing the pull up resistor value from 4.7k to 2.2k does not change the offset or noise.

Check page 55 of the UM10204: I2C-bus specification and user manual

http://www.nxp.com/documents/other/UM10204_v5.pdf

Regards,

Jose

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