FT232RL USB drive features, ft232rl vs ft232rq
Single-chip USB to asynchronous serial data transfer interface
On-chip full USB protocol, no special USB firmware programming required
The UART interface supports 7 or 8 data bits, 1 or 2 stop bits, and odd/even/tag/space/no parity
Full hardware support, or X on/X off software handshake
Built-in support for event characters and broken line conditions.
New USB FTDIChip-ID feature
New configurable CBUS input/output pins
Automatic transmit buffer control for RS485 applications.
Sends and receives LED driver signals