What is the I2C bus capacitance of LIS2MDL and LSM6DSL?

JTomp.1 · ‎2021-11-24

I have both these devices on the same I2C bus and am trying to calculate the maximum pullup resistance.

Thanks!

TBomb.1 · ‎2021-11-26

Hi, usually they are driven or left at high impedance, so the capacitance is mostly determined by the parasitic of the pcb on the I2C lines.

Pay attention to the max I2C speed. I believe you can go up to 100kOhm pullup, if you want to minimize the consumption.

\Tom

TBomb.1 · ‎2021-11-26

Hi, usually they are driven or left at high impedance, so the capacitance is mostly determined by the parasitic of the pcb on the I2C lines.

Pay attention to the max I2C speed. I believe you can go up to 100kOhm pullup, if you want to minimize the consumption.

\Tom

ASbor.1 · ‎2022-08-17

Hello All!

Is it possible to interrogate 30 sensors through the I2C expander without using an interrupt

- LIS2MDL ? I can attach the diagram in the next message if necessary.