Communication interface chip UART485/232

The FSA7830 is an 8-channel, low-power voltage MUX. It integrates 8 analog switches for input voltage selection and a voltage divider to provide 1/3, 2/3 of the selected voltage. With 3 additional analog switches, the FSA7830 can also select 1/3, 2/3 or 1x the select voltage. The FSA7830 also includes output buffers for increased drive capability. It has over-voltage protection to ensure that the output is less than 2 V; an interrupt warning is also issued. The FSA7830 supports a 1.8 V I2C interface to communicate with the processor and 2 address pins to provide a multi-chip solution.