The PIC16F84A-20I/P is a mid-range PIC16 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, 68bytes of data memory size and 13 general-purpose I/O pins. This device operates at a maximum frequency of 20MHz with wide operating voltage of 2 to 6V.