16-bit I2C-bus and SMBus, low power I/O port with interrupt - # of Addresses: 8 ; I2C-bus: 400 kHz; Interrupt: 0-1 ; Max Sink Current per bit: 25 mA; Max. output current (A p-p): 200 ; Number of bits: 16 ; Operating temperature: -40~85 Cel; Operating voltage: 2.3~5.5 VDC; Source Current per bit: 10 mA; Weak Pull-Up Current Source: no internal pull up resistor