File:Motorola MC6820L MC6821L.jpg

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Description Motorola M6800 family Peripheral Interface Adapters (PIA). The PIA has two bidirectional 8-bit interface ports each with two control lines. The MC6820 was introduced in 1974 and fabricated with enhancement-mode NMOS. In 1976 the family was moved to a depletion-load technology to reduce chips size and increase speed. The electrical characteristics of the PIA interface were changed and the new part was named the MC6821. The L suffix indicates a ceramic package; the P suffix was for a plastic package.
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Author Swtpc6800 en:User:Swtpc6800 Michael Holley

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current04:02, 5 May 2010Thumbnail for version as of 04:02, 5 May 20101,300 × 1,100 (113 KB)Swtpc6800 (talk | contribs){{Information |Description= Motorola M6800 family Peripheral Interface Adapters (PIA). |Source={{Own}} |Author=Swtpc6800 en:User:Swtpc6800 Michael Holley |Date=2010-05-04 |other_versions= }} Category:Motorola M6800

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