579-PIC18F452-I/P Microchip 8-bit Microcontroller Microchip suggests replacement device 579-PIC18F4520-I/P which has enhanced features. Please reference data sheets for specific changes. Please contact a Mouser Technical Sales Representative for further assistance. 5-0908-9 579-PIC18F452-I/P Microchip 8-bit Microcontroller Microchip suggests replacement device 579-PIC18F4520-I/P which has enhanced features. Please reference data sheets for specific changes. Please contact a Mouser Technical Sales Representative for further assistance. 5-0908-9