4 layers21 × 17 mm

Boards in 2 GitHub repositories, designed in KiCad, that use the SN74LVC86AD by Texas Instruments (-40℃~+125℃ 1.65V~3.6V 1.7V、2V 1uA 2 2.2V 24mA 24mA 4 4.4ns@3.3V,50pF 580mV~800mV 74LVC Series 800mV XOR Gate SOIC-14 Logic Gates ROHS). See how each wires it, with its parts, size, README and files; the SN74LVC86AD’s symbol, footprint and pinout are on its own page.