wdc located in mesa arizona usa is a company developing and manufacturing mos 65xx based microprocessors microcontrollers cs and related support devices . wdc was founded in 1978 by co holder of the mos technology 6502 patent bill mensch himself a former mos technology employee . in addition to the discrete devices wdc offers device designs in the form of ip cores to be used inside other chips such as asics and provides asic and embedded systems consulting services revolving around their processor designs . wdc also produces c compilers assembler linker packages simulators development evaluation boards and in circuit emulators for their processors . hardware products edit devices edit name type comments w65c02s 8 bit microprocessor enhanced static core cmos version of the mos technology 6502 microprocessor w65c816s 16 bit microprocessor extended version of the w65c02s featuring larger instruction set selectable register sizes and 24 bit memory addressing w65c134s 8 bit microcontroller microcontroller with w65c02s core and mask programmable rom w65c265s 16 bit microcontroller microcontroller with w65c816s core and mask programmable rom w65c21n i o device drop in replacement for mos technology 6520 & motorola 6820 6821 peripheral interface adapters pia w65c21s i o device lower power higher performance version of the w65c21n pia w65c22n i o device drop in replacement for the mos technology 6522 versatile interface adapter via w65c22s i o device modified version of the mos technology 6522 via with totem pole irq output w65c51n i o device drop in replacement for the mos technology 6551 asynchronous communications interface adapter acia other edit the mensch computer a w65c265 and w65c22 based hobbyist experimental computer named after company founder bill mensch . external links edit western design center corporate website retrieved from https en.wikipedia.org w index.php title western design center & oldid 706216824 categories electronics companies of the united statescompanies based in mesa arizonacomputer companies established in 1978electronics companies established in 19781978 establishments in arizona navigation menu personal tools not logged intalkcontributionscreate accountlog in namespaces article talk variants views read edit view history more search navigation main pagecontentsfeatured contentcurrent eventsrandom articledonate to wikipediawikipedia store interaction helpabout wikipediacommunity portalrecent changescontact page tools what links hererelated changesupload filespecial pagespermanent linkpage informationwikidata itemcite this page print export create a bookdownload as pdfprintable version in other projects wikimedia commons languages deutschespa olfran aisitaliano polskisvenska edit links this page was last modified on 22 february 2016 at 03 55 . text is available under the creative commons attribution sharealike license ; additional terms may apply . by using this site you agree to the terms of use and privacy policy . wikipedia is a registered trademark of the wikimedia foundation inc. a non profit organization . privacy policy about wikipedia disclaimers contact wikipedia developers cookie statement mobile view