6 layers414 × 187.5 mm

Boards in 2 GitHub repositories, designed in KiCad, that use the SA555P by Texas Instruments (-40℃~+85℃ 100kHz 10mA 4.5V~16V DIP-8 555 Timers / Counters ROHS). See how each wires it, with its parts, size, README and files; the SA555P’s symbol, footprint and pinout are on its own page.