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The Intel 8051 is a Harvard architecture, single chip microcontroller (µC) which was developed by Intel in 1980 for use in embedded systems.
Intel's original versions were popular in the 1980s and early 1990s, but has today largely been superseded by a vast range of faster and/or functionally enhanced 8051-compatible devices manufactured by more than 20 independent manufacturers including Atmel, Infineon Technologies, Maxim Integrated Products (via its Dallas Semiconductor subsidiary), NXP (formerly Philips Semiconductor), Winbond, ST Microelectronics, Silicon Laboratories (formerly Cygnal), Texas Instruments and Cypress Semiconductor.
Intel's official designation for the 8051 family of µCs is MCS 51. Intel's original 8051 family was developed using NMOS technology, but later versions, identified by a letter "C" in their name, e.g. 80C51, used CMOS technology and were less power-hungry than their NMOS predecessors - this made them eminently more suitable for battery-powered devices.
Source: Wikipedia (http://en.wikipedia.org/wiki/8051)
Here are the best overviews and tutorials for 8051:
- tutorial, 5 stars
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Architecture and Programming of 8051 Microcontrollers - Free eBook
Learn in a quick and easy way to program 8051 microcontroller using many practical examples we have provided for you. Despite its relative old age, 8051 is still the most commonly used microcontroller at present.
Beside Intel, many other renowned companies manufacture this model - Philips, Siemens, etc. The book contains details of its architecture and many practical examples, both simple and complex, useful program routines, instructions on...
- tutorial, 4 stars
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8052.com
A Resource and Tutorial for the 8052 Developer.
This document is both a tutorial and a reference tool.
The various chapters of the document will explain the 8051 step by step.
The chapters are targeted at people who are attempting to learn 8051 assembly language programming.
The appendices are a useful reference tool that will assist both the novice programmer as well as the experienced professional developer.
- tutorial, 3 stars
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8051 Tutorial from Computer Solutions
This tutorial is one of a series designed to summarise the main features of a microcontroller CPU family so that engineers familiar with the general principles of embedded micro development can rapidly evaluate the 8051 family to determine its suitability for a new project.
Introduction The 8051 is one of the most popular 8 bit microcontrollers and combines an instruction set that allows tight coding of small, particularly I/O intensive,...
To browse all sites for '8051,' click
here
.
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