4-Ch Serial I/O Controller, 1.5Mbps, 3.3V, 48-Pin PQFP
USB-UART 4-CH 48-Pin Industrial 3.3V 48MHz
48-Pin Quad Serial IO/Communication Controller, 3.3V, 48MHz, Industrial Temperature, TQFP48
Quad Serial Communication Controller, 48-Pin TFQFP, Industrial Temperature
