4 layers68.6 × 53.3 mm

Boards in 1 GitHub repository, designed in KiCad, that use the CD74HCT154M by Texas Instruments (-55℃~+125℃ 14ns@5V,15pF 4.5V~5.5V 4mA 4mA 74HCT 8uA Decoder Single Supply SOIC-24-300mil Signal Switches, Multiplexers, Decoders ROHS). See how each wires it, with its parts, size, README and files; the CD74HCT154M’s symbol, footprint and pinout are on its own page.
