Part Number : 89V52RD2
Function : FlashFlex51 MCU
Package : 44-lead PLCC / 40-pin PDIP / 44-lead TQFP Type
Maker : Silicon Storage Technology
Pinouts : 
Description :
The 89V52RD2, SST89E5xxRD2 and SST89V5xxRD2 are members of the FlashFlex51 family of 8-bit Microcontroller products designed and manufactured with SST’s patented and proprietary SuperFlash CMOS semiconductor process technology.
The split-gate cell design and thick-oxide tunneling injector offer significant cost and reliability benefits for SST’s customers. The devices use the 8051 instruction set and are pin-for-pin compatible with standard 8051 microcontroller devices.
Datasheet PDF Download : 
Others datasheet of same file :
89E516RD, 89E516RD2, 89E52RD2, 89E54RD2, 89E58RD2