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 Intel's original versions were popular in the 1980s and early 1990s, but has today largely been superseded by a vast range of faster and/or functionally enhanced 8051-compatible devices manufactured by more than 20 independent manufacturers including Atmel,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

other great electronics sites:ee toolbox site

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 Intel's original versions were popular in the 1980s and early 1990s, but has today largely been superseded by a vast range of faster and/or functionally enhanced 8051-compatible devices manufactured by more than 20 independent manufacturers including Atmel,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

      (Note: The Electronic Engineers Toolbox provides an alternative set of featured links for this word at http://www.cera2.com/8051.htm)

      Featured Links:

      Saelig Introduces W7100 - New Embedded-Internet 8051 MCU

      Saelig Company, Inc. (Saelig) (www.saelig.com) announces the W7100, a unique one-chip solution which integrates an 8051-compatible microcontroller, 64KB SRAM and hardwired 10BaseT/100BaseTX + PHY for high performance and easy development. Targeted at designs for network-enabled instruments and dataloggers, the W7100 provides 32 Kbytes of internal buffer for data transmission/receiving, and supports half-duplex/full duplex, auto-negotiation...
      http://www.saelig.com/pr/w7100.html

      Jan Axelson's Lakeview Research

      The source for information and tools relating to USB, parallel ports, RS-232 and RS-485 serial communications, 8052-Basic microcontrollers, and making printed-circuit boards. Mr. Axelson has written a number of books, and has created web pages of resources for each topic. Also has information on the Serial Port.
      http://wwwww.lvr.com/

      Raisonance - RKit Lite 8051 Software Toolset

      The RKit 'Lite' 51 (RKitL51) software toolset in conjunction with the Ride integrated development environment provides a complete solution for compiling and debugging your applications for a wide range of 8051 microcontrollers. The RKitL51 includes all the tools in our 8051 software toolset with the following capabilities: Ride6 integrated development environment RC-51 ANSI C compiler, output up to 32Kbytes of code MA-51 Macro...
      http://www.eg3.com/8051/raisonance.htm

      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...
      http://www.mikroe.com/en/books/8051book/

      Rickey's World of Microcontrollers

      Very nice website of discussions, downloads, project, and even tutorials on AVR, PIC, and 8051. Hi friends my name is Ajay Bhargav my friends call me rickey. I am an electronics and communication student and i have done Diploma in Embedded system designing. Making webpages is my hobby and i like to help people. I am working with micro controllers from past few years. Till now i have worked with 8051 architechutre, AVR (still learning it)...
      http://www.8051projects.net/

      FreeRTOS - Realtime Scheduler

      FreeRTOS.orgTM is a portable, open source, mini Real Time Kernel - a free to download and royalty free RTOS that can be used in commercial applications. Ports exist for many different processor architectures and development tools. Each official port includes a pre-configured example application demonstrating the kernel features, expediting learning, and permitting 'out of the box' development. Free support is provided by an active user...
      http://www.freertos.org/

      Nuvoton Introduces New LPC 8051 MCU –SSOP20 N79E825/N79E824

      Nuvoton Technology Corporation today releases the LPC(low pin count) 8051 MCU–SSOP20 N79E825/N79E824 after presenting series of LPC MCU. Nuvoton's new 8-bit MCU, the N79E825/N79E824 makes its debut to respond to the increasing demand for compact package-SSOP20. The key features of N79E825/N79E824 include fast execution, high noise immunity, and stability. It's suitable for common embedded applications that require high performance in small...
      http://www.nuvoton.com

      IAR Systems

      IAR Systems provides a range of development tools for embedded systems: integrated development environments (IDE) with C/C++ compilers and debuggers, development kits, hardware debug probes and state machine design tools. The product line supports 8051, ARM, AVR, MSP430 and many other 8-, 16-, and 32-bit MCUs from different chip manufacturers. [PowerPAC RTOS for ARM, ColdFire, MSP430]
      http://www.iar.com/

      Actel Extends Core8051s Processor Support to RTAX, Axcelerator and IGLOO Families

      Continuing to deliver solutions for embedded designers, Actel Corporation (NASDAQ: ACTL) today announced that it has extended Core8051s support for its line of high-reliability Axcelerator®, radiation-tolerant RTAX and low-power IGLOO® FPGAs. By broadening Core8051s support, Actel enables designers developing high reliability, space-flight or portable embedded designs to take advantage of the strong ecosystem and deep code base that exists...
      http://www.actel.com/company/press/2009/11/30/

      Actel Corporation

      Actel is the leader in low-power and mixed-signal FPGAs, offering the most comprehensive portfolio of system and power management solutions. Power Matters. Learn more at www.actel.com. [Cores: 8051, ARM, CORTEX-M1, SPARC]
      http://www.actel.com/

      Explanation: these links are provided as part of our EE glossary project, which seeks to identify the most prominent keywords in embedded systems, embedded software, realtime and rtos, dsp (digital signal processing), system-on-a-chip, microprocessors and microcontrollers, and other constituent elements for embedded systems. While we seek to keep most of the links up-to-date, the user is refered to other primary electronic-based search sites such as: cera2.com, embedded.com, or EDN Magazine. If you have any suggestions of links or definitions, please email!

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