MICROCHIP’S SST89E516RD IS A 8051 BASED MICROCONTROLLER. IT IS PIN TO PIN AND CODE TO CODE 100% EQUIVALENT TO NXP’S P89V51RD2. THE MAIN ADVANTAGE OF USING SST89E516 IS IT HAS A INBUILT BOOTLOADER AND IT CAN BE SERIALLY PROGRAMMED THROUGH PC USING EASY IAP SOFTWARE.THE IC IS SUPPORTED IN KEIL C51 AS SST89X516RD2 FOR COMPILING AND SIMULATION….