Single UART I2C/SPI Bridge, 64-B FIFO, 3Mbps, LQFP-48
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
IC UART 48LQFP