Microchip PIC16F 8-bit CMOS Flash/EEPROM Microcontrollers – Microchip PIC16F84A-04/P, This powerful 200ns instruction execution yet easy-to-program CMOS Flash/EEPROM-based 8-bit microcontroller packs Microchip’s powerful PIC architecture into an 18-pin package.The same device can be used for prototyping and production and the end application can be easily updated without removing the device from the end product via the ICSP.Only 35 single word instructions to learn, all instructions single-cycle except for program branches which are two-cycle, 14-bit wide instruction words, 8-bit wide data bytes, 15 special function hardware registers, eight-level deep hardware stack, direct, indirect and relative addressing modes.Easily adapted for automotive, industrial, appliances low power remote sensors, electronic locks and security applications. Microchip PIC16F84A-04/P Microcontroller