The PIC12F635-I/P is a mid-range PIC12 family 8-bit powerful (200 nanosecond instruction execution) yet easy-to-program (only 35 single word instructions) CMOS flash based Microcontroller packs powerful PIC®(RISC) architecture. This product offer all of the advantages of the well recognized mid-range x14 architecture with standardized features including 1.75kB of addressable program memory size, 64bytes of data memory size, 6 general-purpose I/O pins and one comparator. This device operates at a maximum frequency of 20MHz wide operating voltage of 2 to 5.5V.