I'm wondering if it's at all possible to read/write to 3.3V (ideally 1.8V) circuitry on the I2C lines of the USB 8451. As best as I understand, it's a 5V only bus. Unfortunately, the part doesn't come in higher voltage and I have haven't found a NI device that reads/writes to I2C on any other voltage than 5V. Any help is appreciated. Thanks.