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8051: Definition and Recommended Links

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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 Intel's original versions were popular in the 1980s and early 1990s, but has today largely been superseded by a vast range of faster and/or functionally enhanced 8051-compatible devices manufactured by more than 20 independent manufacturers including Atmel, Infineon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)


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Mark Twain quote for the day:

Nearby is an interesting ruin- the meager remains of an ancient temple- a place where human sacrifices were offered up in those old bygone days...long, long before the missionaries braved a thousand privations to come and make [the natives] permanently miserable by telling them how beautiful and how blissful a place heaven is, and how nearly impossible it is to get there; and showed the poor native how dreary a place perdition is and what unnecessarily liberal facilities there are for going to it; showed him how, in his ignorance, he had gone and fooled away all his kinsfolk to no purpose; showed him what rapture it is to work all day long for fifty cents to buy food for next day with, as compared with fishing for a pastime and lolling in the shade through eternal summer, and eating of the bounty that nobody labored to provide but Nature. How sad it is to think of the multitudes who have gone to their gaves in this beautiful island and never knew there was a hell.
- Roughing It