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M6800 Systems Reference and Data Sheets May 1975
Motorola MC6820L 6820 Peripheral Interface Adapter Sbcdip40 X 1pc for sale online | eBay
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Vintage Computers Overview - K7MEM
Southwest Technical Products Corporation
MC6820
数字电路中的芯片引脚及主要特性MC6820等通用并行接口(PIA) - 将睿
Motorola 6800 - Wikipedia
Making of my own Apple I: I Got The CPU And The PIA
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Motorola Datasheets | PCjs Machines
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Peripheral Interface Adapter - Wikiwand
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ブルガリア製 MC6820 PIA Pravetz CM602(その他)｜売買されたオークション情報、yahooの商品情報をアーカイブ公開 - オークファン（aucfan.com）
Motorola MC6820 MC6820L Peripheral Interface Adapter 1X | eBay
Peripheral Interface Adapter - Wikipedia
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Références des puces électroniques - «MC6820»
File:Fairchild 6802 AMI 6820.jpg - Wikimedia Commons
MC6821 = MC6820 Peripheral Interface Adapter Origineel Motorola | MC6821
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Motorola 6800 - Wikipedia
File:Motorola MC6800 microprocessor ad 1975.jpg - Wikimedia Commons
6820 pia for sale | eBay
