Part Name: IC, QUAD UART FOR 3.3V AND 5V SUPPLY VOLTAGE, 80 PIN LQFP, 12X12 PACKAGE
The 28L194 Quad UART is a single chip CMOS-LSI communications device that provides 4 full-duplex asynchronous channels with significantly deeper 16 byte FIFOs, Automatic in-band flow control using Xon/Xoff characters defined by the user and address recognition in the Wake-up mode. Synchronous bus interface is used for all communication between host and QUART.