MOS Technology 6502: Difference between revisions

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[[File:MOS6502AD.jpg|250px|right|6502AD (click to enlarge)]]
[[File:MOS6502AD.jpg|250px|right|6502AD (click to enlarge)]]


The '''MOS 6502''' is an 8-bit processor that was originally developed by a team led by the engineer Chuck Peddle. It was introduced in 1975 and it is still being produced. It was produced by the following companies.
The '''MOS Technology 6502''' is an 8-bit processor introduced in 1975 that was originally developed by a team led by the engineer Chuck Peddle at MOS Technology (later purchased by Commodore).
*  California Micro Devices (GTE Microcircuits)
*  Commodore Semiconductor Group (MOS Technology)
*  Rockwell
*  Synertek
*  Western Design Center
Currently it is only produced by Western Design Center (WDC)


It was a popular choice of processor because of its low price and high capabilities. It was used in multiple early computers such as the Commodore 64, Commodore VIC-20, Apple II, BBC micro, and many others.  
It was second-sourced by other companies such as California Micro Devices (GTE Microcircuits), Rockwell, and Synertek.
Western Design Center (WDC) first developed a CMOS version, which is still in production as of 2019.  In addition, several implementations (commercial as well as free) are available to synthesize the core into FPGA designs.
 
The 6502 was a popular choice of processor because of its low price and high capabilities. It was used in multiple early computers such as the Commodore 64, Commodore VIC-20, Apple II, BBC micro, and many others.  


==Internals==
==Internals==
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* [[DC509]], [[DC5009]]: R6504 28-pin DIP variant with 13-bit address bus (8K address space)
* [[DC509]], [[DC5009]]: R6504 28-pin DIP variant with 13-bit address bus (8K address space)


==Documents==
==Links==
* [http://www.westerndesigncenter.com/wdc/documentation/w65c02s.pdf WDC 65C02 datasheet (Offsite)]
* [http://www.westerndesigncenter.com/wdc/documentation/w65c02s.pdf WDC 65C02 datasheet (Offsite)]
* [http://www.6502.org 6502 information site including datasheets and other derivative processors]
* [http://www.6502.org 6502 information site including datasheets and other derivative processors]
* [https://en.wikipedia.org/wiki/MOS_Technology_6502 Wikipedia]
* [[wikipedia:MOS_Technology_6502|Wikipedia: MOS Technology 6502]]
 
==Pictures ==
==Pictures ==
<gallery>
<gallery>

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