I need to use the PCA9306 to translate between a 1.8v on VREF1 and 3.3v on VREF2. However, I need to control the EN pin from the 1.8v side. To do this I connected VREF1 directly to the 1.8v supply, VREF2 directly to the 3.3v supply and EN through the 200K resistor to the 1.8v GPIO pin that controlls it. The I2C buss on each side is pulled up to the respective rails with 4.7K ohm resistors. Everything appears to work fine. I get good bi-directional translation. EN being driven between ov (disabled) and 1.8v (enabled) also seems to work. Anyone see issues with this?
-
Ask a related question
What is a related question?A related question is a question created from another question. When the related question is created, it will be automatically linked to the original question.