microcontroller AT89C51RC-24PU chip IC 8-Bit 24MHz 32KB (32K x 8) FLASH 89C51 DIP40
 
Low-power, high-performance CMOS 8-bit microcontroller with 32KB of flash programmable ROM and 512 bytes of RAM.
It uses Microchip high-density nonvolatile memory technology and is compatible with the industry-standard 80C51 and 80C52 instruction set and pinout. On-chip flash allows the program memory to be user programmed by a conventional nonvolatile memory programmer.
This versatile 8-bit CPU with flash provides a highly-flexible and cost-effective solution for many embedded control applications.
 
Resource:
1. Datasheet
2. Programming 8051 using Keil Software
3. AT89C51 In-Circuit Programming
4. Using a Personal Computer to Program the AT89C51