Microchip PIC18F242-I/SO is a 8K x 16 16kb microcontroller with 40MHz maximum frequency, 25 general purpose I/O pins, 2 comparators and 5 channel 10 bit A to D converter. Operates from 4.2 to 5.5V. SOIC 28 pin SMD package. Original Microchip part. Brand new! Retails for $6.55