Atmel Microcontroller Data Book AT89 Series Flash MCUs December 1997 includes the following data sheets:

Explanation of Atmel's Part Number Code


General Architecture



Flash Microcontroller Architectural Overview


Flash Microcontroller Memory Organization


AT89 Series Hardware Description


Instruction Set



Factory-Programmable Microcontroller Datasheets


AT80F51 8-Bit Microcontroller with 4K Bytes QuickFlash Memory


AT80F52 8-Bit Microcontroller with 4K Bytes QuickFlash Memory


User-Programmable Microcontroller Datasheets


AT89C1051


AT89C2051

AT89C4051


AT89C51


AT89LV51


AT89C52


AT89LV52


AT89S8252


AT89LS8252


AT89C55


AT89LV55


AT89S53


AT89LS53


AT89S4D12




Microcontroller Application Notes


Using a personal Computer to program the AT89C51 / C52 / LV51 / LV52 / C1051 / C2051


AT89C51 In-Circuit Programming


Controlling FPGA Configuration with a Flash-Based Microcontroller


Programming Atmel's Family of Flash Memories


Analog to Digital Conversion Utilizing the AT89X51 Microcontrollers


Interfacing AT24CXX Serial EEPROMs with AT89CX051 Microcontrollers


Interfacing AT25XXX Serial EEPROMs with AT89CX051 Microcontrollers


Using the AT89C2051 Microcontroller as a Virtual Machine


A Digital Thermometer Using the AT89C2051 Microcontroller


Expanding the AT89C2051 Microcontroller


AT89S8252 In-System Programming


Designing Boards with Atmel AT89C51 , AT89C52 , AT89C1051 , and AT89C2051 for writing Flash at In-Circuit Test


Providing an Ideal External Program Memory Solution for the ATMEL 89XXX Microcontrollers AT27C520 Application Note


Microcontroller Programmer Support


Microcontroller Two-Way Adapter Board ATABX051


Package Outlines

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