ADuC7060 I2C


I have a quick question concerning ADuC7060 I2C bus: I'd like to use ADuC7060 as master to communicate with several slaves through I2C bus, the slaves are powered at 3.3 V, SDA and SCL lines are both pulled up to 3.3 V. But since the ADuC7060 are powered at 2.5 V, does this configuration work or I must use a level translator ? Thank you in advance.