UARTs
[1] [2] [3] [4] [5] 
XR82C684Exar   Quad UART with Four Fully Independent Full-Duplex Asynchronous Communication Channels 
XR88C192Exar   Dual UART with 16 Bytes Transmit and Receive FIFO 
XR88C681Exar   Dual UART CMOS with Two Fully Independent Full Duplex Asynchronous Communications Channels 
XR88C92Exar   Dual UART with 8 Bytes Transmit and Receive FIFO 
[1] [2] [3] [4] [5] 

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