TS5A3159: Can the chip TS5A3159DBVR be used to select the UART, the UART frequency Baud rate is 115200bps.

Frank,

I typed in baud rate in to the switches and multiplexers e2e forum search bar and found this post that should help you with your question. 

Use of TS3A24157 for UART switching

Also you can look at the switches and multiplexers frequently asked questions page posting on data rates and bandwidth.

Thank you,

Adam