SC16C2550B - 5 V, 3.3 V and 2.5 V dual UART, 5 Mbit/s (max.), with 16-byte FIFOs QFN 32-Pin
SC16C652B - 5 V, 3.3 V and 2.5 V dual UART, 5 Mbit/s (max.) with 32-byte FIFOs and infrared (IrDA) encoder/decoder QFP 48-Pin
SC16C754B - 5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 64-byte FIFOs QFP 80-Pin
SC16C550B - 5 V, 3.3 V and 2.5 V UART with 16-byte FIFOs LCC 44-Pin
SC16C650B - 5 V, 3.3 V and 2.5 V UART with 32-byte FIFOs and infrared (IrDA) encoder/decoder QFP 48-Pin
IC UART 44PLCC
IC UART DUAL SOT187-2
IC UART DUAL W/FIFO 44-PLCC
SC16C554DIB64
IC DUART 44PLCC
SC16C2550B - 5 V, 3.3 V and 2.5 V dual UART, 5 Mbit/s (max.), with 16-byte FIFOs LCC 44-Pin
SC16C554B/554DB - 5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 16-byte FIFOs LCC 68-Pin
IC QUAD UART 64BYTE 64LQFP
SC16C554B/554DB - 5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 16-byte FIFOs QFP 64-Pin