SC16C554DIB64
SC16C554B/554DB - 5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 16-byte FIFOs QFP 64-Pin
IC QUAD UART 64BYTE 64LQFP
IC UART QUAD W/FIFO 64-LQFP
