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AT89C51RE2 Datasheet 8-bit Flash Microcontroller

Manufacturer: Atmel (now Microchip Technology)

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General Description

AT89C51RE2 is a high performance CMOS Flash version of the 80C51 CMOS single chip 8-bit microcontroller.

It contains a 128 Kbytes Flash memory block for program.

The 128 Kbytes Flash memory can be programmed either i

Key Features

  • 80C52 Compatible.
  • 8051 Instruction Compatible.
  • Four 8-bit I/O Ports (44 Pins Version).
  • Three 16-bit Timer/Counters.
  • 256 bytes Scratch Pad RAM.
  • 11 Interrupt Sources With 4 Priority Levels.
  • ISP (In-System Programming) Using Standard VCC Power Supply.
  • Integrated Power Monitor (POR/PFD) to Supervise Internal Power Supply.
  • Boot ROM Contains Serial Loader for In-System Programming.
  • High-speed Architecture.

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