SC16C754B - 5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 64-byte FIFOs QFP 80-Pin
SC16C554B/554DB - 5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 16-byte FIFOs QFP 80-Pin
IC UART QUAD W/FIFO 80-LQFP
