4 layers85 × 56 mm

Boards in 2 GitHub repositories, designed in KiCad, that use the TLV9054ID by Texas Instruments (-40℃~+125℃ 1.8V~6V 15V/us 15nV/√Hz@1kHz 2pA 330uA 330uV 4 500nV/℃ 50mA 525pA 5MHz 96dB EMI filtering/RF suppression Rail-to-Rail Input, Rail-to-Rail Output SOIC-14 Operational Amplifier ROHS). See how each wires it, with its parts, size, README and files; the TLV9054ID’s symbol, footprint and pinout are on its own page.


lgugelmann/HD6301_thing
I recently received a few samples of a Hitachi HD6301V1 in a DIP-40 package. It's a 1MHz 8bit CPU derived from the Motorola 6801 with a few extra instructions.