component
74HC257D
Public Made by Adomby adom
Nexperia Signal Switches / Encoders & Decoders / Multiplexers, SOIC-16. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
← Commit history
74hc257d: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding)
1 file changed
+42−2
page.json+42−2@@ -155,7 +155,47 @@ "function_name": "Quad 2-Input Multiplexer, 3-State", "manufacturer": null, "is_specialty": false- }+ },+ "models_3d": [+ {+ "file": "74hc257d.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6.0,+ 9.9,+ 1.75+ ],+ "zmin_mm": -0.0,+ "centre_offset_mm": 0.0,+ "footprint_binding": "identity",+ "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "74hc257d-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6.0,+ 9.9,+ 1.75+ ],+ "zmin_mm": -0.0,+ "centre_offset_mm": 0.0,+ "footprint_binding": "identity",+ "sha256": "b5d0aeb7c5a7d7dbbcca7706947660f5c1392d193eb28edb1910b703d03a3a81",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ] }, "metadata": { "specs": {@@ -212,4 +252,4 @@ "public": true }, "updated_at": "2026-09-24T14:56:57.607Z"-}+}