SC18IS603 Overview
The SC18IS602/602B and SC18IS603 are designed to serve as an interface between a standard I2C-bus of a microcontroller and an SPI bus. This allows the microcontroller to municate directly with SPI devices through its I2C-bus. The SC18IS602/602B/603 operates as an I2C-bus slave-transmitter or slave-receiver and an SPI master.