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INTEGRATED CIRCUITS DATA SHEET P8xCE528 8-bit microcontroller with EMC and FEEPROM September 1993 Preliminary specification File under Integrated Circuits, IC20 Philips Semiconductors Preliminary specification 8-bit microcontroller with EMC and P8xCE528 FEEPROM FEATURES • 80C51 central processing unit • 32K x 8 ROM resp. FEEPROM, expandable externally to 64 kbytes • ROM/FEEPROM code protection • 512 x 8 RAM, expandable externally to 64 kbytes This device provides architectural enhancements that • Four 8-bit I/O ports make it applicable in a variety of applications in general • Full-duplex UART compatible with the standard 80C51 control systems, especially in those systems which need a and the 8052 large ROM and RAM capacity on chip. • Two standard 16-bit timer/cou