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VGA Interface Using Only 74xx IC’s

Posted October 6, 2011 by Chris

To go with my other vga oriented projects here’s a VGA interface that is built entirely with TTL discrete logic chips. I built it primarily for the 7400 contest over at dangerous prototypes, so give a comment over there if you like the design. This interface outputs the proper Hsync and Vsync signals using some 74193 counters and uses an 8-state machine to output different color signals to an LCD.

15 Responses to “VGA Interface Using Only 74xx IC’s”

  1. mohamed Says:

    very interisting

  2. Guigui Says:


    Nice work!
    FYI I found a “masochist” who write some assembly to get pictures from its arduino: look at VGAout by Nabe



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