The SST89E516RDx and SST89V516RDx are members of the FlashFlex family of 8-bit microcontroller products designed and manufactured with Microchip patented and proprietary SuperFlash CMOS semiconductor process technology. The splitgate cell design and thick-oxide tunneling injector offer significant cost and reliability benefits for Microchip customers. The devices use the 8051 instruction set and are pin-for-pin compatible with standard 8051 microcontroller devices.

The SST89E516RDx and SST89V516RDx are members of the FlashFlex family of 8-bit microcontroller products designed and manufactured with Microchip patented and proprietary SuperFlash CMOS semiconductor process technology. The splitgate cell design and thick-oxide tunneling injector offer significant cost and reliability benefits for Microchip customers. The devices use the 8051 instruction set and are pin-for-pin compatible with standard 8051 microcontroller devices.