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8051 Microcontroller - Search Tips on Google
Here is a link to this search on Google:

• 8051 Microcontroller on Google.
• 8051 Microcontroller on Yahoo

As we have explained elsewhere in this guide, here's how to identify the most active current producers of 8051 microcontrollers -

Here are the distributors to check out:

• Digikey
• Jameco Electronics
• Mouser Electronics, Inc.

In researching the most active chip companies in the 8051 ecosystem, here are some news tidbits. Probably the most interesting company is Silicon Labs . According to the company:

Our 8-bit mixed-signal MCUs integrate world-class analog, a pipelined 8051 CPU, in-system programmable Flash memory and on-chip debug in each device. No other MCU supplier can provide the level of high-performance analog and functional density to provide user with design flexibility, improved time-to-market, superior system performance and greater end product differentiation.
(Cited here , 25 February 2009).

What's really cool is their Toolstick, an easy to use development system that allows designers to develop and debug application firmware directly on the target microcontroller using the Silicon Labs Integrated Development Environment (IDE). Once complete, designers can replace the Daughter Card with a Programming Adapter and program blank devices for use in their actual system. The "starter kit" is available online and costs only $24.95! (Details, here .)

A second very active semiconductor company is Maxim , and their 8051 page is here . That company claims, their "8051 drop-in microcontrollers retain instruction-set and object-code compatibility with previous 8051 designs, yet provide an instant 33x performance boost." Their really cool development kit, the "DS89C450-K00," doesn't just have a trendy name, it's available for only $89.00, here .

Finally, Atmel is also active in the 8051 space, here . Nuvoton is as well.

Innovative Integration provides board-level hardware products that integrate the best analog I/O and reconfigurable FPGAs to provide cost-effective solutions for challenging data acquisition and signal processing applications.