SC16C754B - 5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 64-byte FIFOs LCC 68-Pin
UART 4-CH 64byte FIFO 2.5V/3.3V/5V 68-Pin PLCC Tube
IC UART QUAD W/FIFO 68-PLCC
