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AT89C51RC2
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High performance 8-bit microcontroller 32 Kbytes Flash
We recommend to implement an external brown out to prevent any Flash/EEPROM corruption during power-on or power-off. Please refer to related application note: External Brown-out Protection for C51 Microcontrollers with Active High Reset Input
Flash (Kbytes) 32
ISP UART
Self Program Memory API
RAM (Bytes) 1280
F.max (MHz) 60
Vcc (V) 2.7-5.5
   PDIP 40
 LQFP 44
 PLCC 44
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AT89C51RB2/AT89C51RC2 Errata (3 pages, updated 06/04)
AT89C51RB2/RC2 (127 pages, revision E, updated 10/06)
 
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C Flash Drivers for the (A)T89C51RB2/RC2/IC2 for Keil Compiler rev 1.2.1 (11 pages, updated 12/01)
External Brown-out Protection for C51 Microcontrollers with Active High Reset Input (15 pages, updated 11/02)
This Application Note shows in detail how to prevent system malfunction during periods of insufficient power supply voltage.
How to Emulate Read/Write Code Access to Atmel T89C51xx Using Hitex DProbeHS Emulator (13 pages, updated 05/02)
In-system Programming with C51 MCU and External Flash (24 pages, updated 01/00)
Programming T89C51xx and AT89C51xx with Device Programmers (13 pages, revision D, updated 06/05)
C51 General Information about Bootloader and In-System Programming (5 pages, revision A, updated 03/07)
This document describes the Atmel Bootloaders for 8051 family processors.
  Other Related Application Notes
  
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Code Examples: C51 API Program Examples
C51 Keyboard Code Examples
C51 SPI Code Examples
C51 Timer0 Code Examples
C51 Timer1 Code Examples
C51 Timer2 Code Examples
C51 UART Code Examples
C51 Watchdog Program Examples
Development Software: FLIP
Reference: C51 Architecture Reference Utilities
Hardware Interface Connection Examples for C51 MCU
Starter Kit: AT89STK-11 Starter Kit
Software Files: C51 Include Files for IAR, Keil, Raisonance, Tasking & SDCC Compilers
SPI Drivers for (A)T89C51RB2/RC2/IC2 AT89C51RD2/ED2/ID2 rev 1.2.0
 
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C51 API Program Examples
C51 Keyboard Code Examples
See more FAQs
  
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AT89STK-11 Starter Kit Hardware (User Guide, 23 pages, revision B, updated 08/07)
This document describes the AT89STK-11 board dedicated to the standard C51 micro-controllers with in-system programming.
Device Programmers for 8051 Devices (Other, updated 09/07)
This Excel spreadsheet provide summary information on device programmers supporting Atmel 8051 microcontrollers
Emulators for 80C51 Devices (Other, updated 11/03)
This Excel spreadsheet provide summary information on emulation support for Atmel 80C51 microcontrollers
Package Adapters of 80C51 Devices (Other, updated 10/04)
This Excel spreadsheet list available package adapters for Atmel 80C51 microcontrollers