AT89C51RC2 Datasheet

AT89C51RC2 8-bit Microcontroller

The AT89C51RB2/RC2 is a high-performance Flash version of the 80C51 8-bit microcontrollers. It contains a 16K or 32K Bytes Flash memory block for program and data. The Flash memory can be programmed either in parallel mode or in serial mode with the ISP capability or with software. The programming v.

Features

• 80C52 Compatible
  – 8051 Pin and Instruction Compatible
  – Four 8-bit I/O Ports
  – Three 16-bit Timer/Counters
  – 256 Bytes Scratch Pad RAM
  – 9 Interrupt Sources with 4 Priority Levels
  – Dual Data Pointer
• Variable Length MOVX for Slow RAM/Peripherals
• ISP (In-system Programming) Using Standard VCC Power Supply
• Boot ROM Contains Low Level Flash Programming Routines and a Default Serial Loader
• High-speed Architecture
  – In Standard Mode: 40 MHz (Vcc 2.7V to 5.5V, both Internal and external code execution) 60 MHz (Vcc 4.5V to 5.5V and Internal Code execution only)
  – In X2 mode (6 Clocks/machi.