2025-11-03 7:43 PM
Hello, I am using the VD6283TX45/1 to develop a device and now have a question to consult. Due to my insufficiently careful reading of the data sheet during the initial design phase, I connected the I2C pins of this device to an I2C bus where the pull-up voltage of the bus is 3.3V. Later, when I checked the data sheet, I noticed that the reference design uses a 1.8V pull-up for the connection. However, the board with the device connected to the 3.3V pull-up has passed tests and the VD6283TX45/1 is operating normally for now. I am currently concerned about whether this connection method can ensure reliable operation in the long run. Or do I need to modify the circuit to implement level conversion for the I2C pull-up voltage?