4 layers

Boards in 1 GitHub repository, designed in KiCad, that use the SY89840UMG by Microchip Technology (-40℃~+85℃ 2.375V~2.625V、3V~3.6V 600ps、625ps 65mA Break-before-make function Single Supply QFN-16(3x3) Signal Switches, Multiplexers, Decoders ROHS). See how each wires it, with its parts, size, README and files; the SY89840UMG’s symbol, footprint and pinout are on its own page.
