PIC16x84
The PIC16C84, PIC16F84 and PIC16F84A are 8-bit microcontrollers of which the EEPROM based PIC16C84 was the first introduced in March 16 1993 at the suggested retail price of $3.72 in quantities of 10,000. It is a member of the PIC family of controllers, produced by Microchip Technology.