The XR16M580IL32-F from MaxLinear, Inc. is a single UART Integrated Circuit with 1 channel and a 16-byte FIFO, supporting RS232, RS422 and RS485, in a 32-QFN (5x5) package.
The XR16M580IL32TR-F from MaxLinear, Inc. is a UART Integrated Circuit with 1 UART channel supporting RS232, RS422 and RS485, with a 16 Byte FIFO, in a 32-QFN (5x5) package.