SC16C654 Datasheet, Features, Application

SC16C654DB - 5 V - 3.3 V and 2.5 V quad UART - 5 Mbit/s (max.)

SC16C654 - Quad UART with 64-byte FIFO and infrared (IrDA) encoder/decoder

SC16C654D - Quad UART

SC16C654B - 5 V - 3.3 V and 2.5 V quad UART - 5 Mbit/s (max.)