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AT89C51RC2 -

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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)
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Design Considerations
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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.
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General Purpose
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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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