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AT89C51AC3
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8-bit microcontroller with A/D converter and 64-Kbyte Flash. 2-Kbyte RAM, 2-Kbyte EEPROM, SPI. Power Fail Detect (no need for external brown- out). Pinout compatible with T89C51AC2.
Flash (Kbytes) 64
ISP UART
Self Program Memory API
EEPROM (Kbytes) 2
RAM (Bytes) 2304
F.max (MHz) 60
   LQFP 64
 LQFP 44
 PLCC 52
 PLCC 44
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AT89C51AC3 (140 pages, revision D, updated 02/08)
AT89C51AC3 Errata (2 pages, revision A, updated 10/04)
AT89C51AC3 UART Bootloader (27 pages, revision B, updated 03/08)
 
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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)
AVR186: Best practices for the PCB layout of Oscillators (4 pages, revision A, updated 3/08)
This application note provides guidelines to design the PCB layout in order not to risk failure and unstable oscillator operation.
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.
EMC Improvement Guidelines (17 pages, updated 8/03)
How to Calculate the Capacitor of the Reset Input of a C51 Microcontroller (8 pages, updated 10/03)
This Application Note explains how the reset of the 80C51 microcontroller works when the RST pin is a pure input pin and when the RST input is bi-directional. It gives rules to determine the extra components required to operate the reset function properly.
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Code Examples: C51 ADC Code Examples
C51 API Program 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
Programmer: FLIP
Reference: C51 Architecture Reference Utilities
Hardware Interface Connection Examples for C51 MCU
Starter Kit: AT89STK-06 CAN
Software Files: C Flash Drivers for the AT89C51CC03U and AT89C51AC3 for Keil Compiler v1.0.0
C51 Include Files for IAR, Keil, Raisonance, Tasking & SDCC Compilers
 
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C51 ADC Code Examples
C51 API Program Examples
See more FAQs
  
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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