Communication interface chip UART485/232

The FSA1153 is a bidirectional, low-power, high-speed USB 2.0 Type-C audio and UART analog switch with overvoltage protection. Configured as a Double Pole Three Throw (DP3T) switch. FSA1153 protection function is used to protect Type?C USB 2.0 port pins from being damaged by high voltage; it provides port-side OVP function on USB 2.0 data pins, once the voltage level on DN_L or DP_R exceeds the over-voltage threshold, it will shut down The associated switch has a withstand voltage of 20.5 V. Once DN_L or DP_R is above 20.5 V, the device will be damaged.