The SC16IS752IPW,128 supports baud rates up to 5 Mbps.
Yes, the SC16IS752IPW,128 can be used as both a UART (Universal Asynchronous Receiver-Transmitter) and a USART (Universal Synchronous Asynchronous Receiver-Transmitter).
The SC16IS752IPW,128 has two UART channels.
The SC16IS752IPW,128 operates on a voltage range of 2.5 V to 5.5 V.
Yes, the SC16IS752IPW,128 is compatible with both 3.3 V and 5 V systems.