74lvc257ad: hero from the plain model
74lvc257ad: one-pass backfill (hero prebuilt (inputs unchanged))
74lvc257ad: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body…
74lvc257ad: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding)
74lvc257ad: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero
74lvc257ad: laser-etched CAD + chip hero (factory 2.0.0 backfill)
Brief states the pinout check that actually ran (was an unconditional "Datasheet-verified pinout")
74lvc257ad: hero re-rendered with iso-front (part number upright)
74lvc257ad: laser-etched CAD + chip hero (factory 2.0.0 backfill)
74lvc257ad: stamp component.logic (74LVC257) from component-ocean
74lvc257ad: publish the laser-etched STEP alongside the bare one
rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect an…
orderable attributes: rebuild .lbr with adom-lbr 2.18.0 so MPN, MANUFACTURER and the distributor part numbers reach <te…
pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left)
pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left)
pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left)
74lvc257ad: factory component page (tier=mfr)
Initial commit: component/74lvc257ad