I am trying to use STM32L476 with several I2C devices, STM32L4 operates @3.3V whereas one of the I2C device is operating @1.8V - I need to avoid using level shifting hardware, there is provision of VDDIO2 and when used with I2C open drain configuration (w/o any pull up or pull down), I can connect this device directly to the I2C port.
Can anyone help me how can I do that? Is there any sample schematic I can follow? Can anyone who has used this configuration tell me about his experience please?
Thanks for your help in advance