When interfacing I2C between two different logic levels (3.3V -> 2.5V) with the P82B96:
1. Is there any leakage from the 3.3V side to the 2.5V side? (via the I/O pins - the 2.5V Vcc may be on or off) - similar to figure 15 of the datasheet.
2. Can the device tolerate voltage on the I/O pins even when it is powered-down?