External Pull ups I2C

[Edward_Atam]

Hello,

I'm using nrf52840 and i would like to ask if it possible to use the I2C bus without external pullups. I mean, i would like to avoid using external pullups

is there any configuration of the I2C bus in which the external pullpus can be avoided?

Thank you in advance.

[Dmitry]

Hi,

I2C will not work without pull-ups, as it's open-drain bus. You can configure internal pull-ups on SCL and SDA pins - they have 11-16k resistance according to spec, such configuration will work only in standard (100 kHz) mode and limited by ~75pF load capacitance.