MAKE A MEME View Large Image Motorola MC6820L MC6821L.jpg 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 ...
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Keywords: Motorola MC6820L MC6821L.jpg 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 Own Swtpc6800 en User Swtpc6800 Michael Holley 2010-05-04 Motorola M6800 Photographs by User Swtpc6800
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