Description: Have you run out of I/O pins? This great IC allows the user to expand up to 16 I/O using only two I/O for control! The PCF8575C is controlled through an I2C interface and features 16-bits of quasi-bidirectional input/output pins. Checkout the datasheet for more info! Features: - 16 individually addressable pins - Each pin configurable for input or output - Interrupt output pin Dimensions: 1x1"