74LVC257AD

@@ -0,0 +1,436 @@+{+  "spec": "adom-hero 1.4",+  "mpn": "74LVC257AD",+  "kind": "component + footprint reference art",+  "board_use": false,+  "plane_z_mm": -0.02,+  "units": "metre",+  "upAxis": "Z",+  "layers": {+    "pad_outlines": {+      "material": "Footprint pads - teal dashed outlines - 50 percent opacity",+      "rgba": [+        0.0,+        0.902,+        0.863,+        0.5+      ],+      "pads": 16,+      "span_mm": 9.49,+      "dash_mm": 0.2372,+      "gap_mm": 0.1424,+      "pad_stroke_mm": 0.0569+    },+    "silkscreen": {+      "material": "Silkscreen reference lines - 30 percent opacity",+      "rgba": [+        0.92,+        0.96,+        1.0,+        0.3+      ],+      "footprint_items": 7,+      "pin1": {+        "source": "footprint silkscreen",+        "pad": "1"+      }+    },+    "signal_names": {+      "material": "Signal names - 50 percent opacity",+      "rgba": [+        0.92,+        0.96,+        1.0,+        0.5+      ],+      "font": "DejaVu Sans Mono",+      "labels": 16,+      "sides": "top + mirrored underside (single-sided)",+      "fallback_to_pad_number": 0+    }+  },+  "align": {+    "ok": true,+    "centre_offset_mm": 0.0,+    "tolerance_mm": 0.759,+    "orientation_flipped": false,+    "contacts_bbox_mm": [+      -3.0,+      3.0,+      -4.65,+      4.65+    ],+    "pads_bbox_mm": [+      -3.45,+      3.45,+      -4.745,+      4.745+    ],+    "seating_z_mm": 0.0+  },+  "sources": {+    "glb": "74lvc257ad-etched.glb",+    "glb_sha256": "978d8b06c0919769e4a94f79bd53baff9c8b8408290ed4806304cb906197510f",+    "footprint": "74lvc257ad.kicad_mod",+    "footprint_sha256": "f9b5075740f7816c540ae1137f025d659beaec522ed7b86b1a5274cc9a2d8a25",+    "pins": "page.json component.pins",+    "pins_sha256": "a9c5aa7c75563de29fef90cdd2c335de6891f1db234494925743422bf7a6fb6a"+  },+  "generator": "adom-wiki 1.8.24 (component_hero)",+  "labels": [+    {+      "pad": "1",+      "text": "S",+      "x": -3.6,+      "y": -4.445,+      "align": "right",+      "vertical": false,+      "h": 0.6+    },+    {+      "pad": "2",+      "text": "1I0",+      "x": -3.6,+      "y": -3.175,+      "align": "right",+      "vertical": false,+      "h": 0.6+    },+    {+      "pad": "3",+      "text": "1I1",+      "x": -3.6,+      "y": -1.905,+      "align": "right",+      "vertical": false,+      "h": 0.6+    },+    {+      "pad": "4",+      "text": "1Y",+      "x": -3.6,+      "y": -0.635,+      "align": "right",+      "vertical": false,+      "h": 0.6+    },+    {+      "pad": "5",+      "text": "2I0",+      "x": -3.6,+      "y": 0.635,+      "align": "right",+      "vertical": false,+      "h": 0.6+    },+    {+      "pad": "6",+      "text": "2I1",+      "x": -3.6,+      "y": 1.905,+      "align": "right",+      "vertical": false,+      "h": 0.6+    },+    {+      "pad": "7",+      "text": "2Y",+      "x": -3.6,+      "y": 3.175,+      "align": "right",+      "vertical": false,+      "h": 0.6+    },+    {+      "pad": "8",+      "text": "GND",+      "x": -3.6,+      "y": 4.445,+      "align": "right",+      "vertical": false,+      "h": 0.6+    },+    {+      "pad": "9",+      "text": "3Y",+      "x": 3.6,+      "y": 4.445,+      "align": "left",+      "vertical": false,+      "h": 0.6+    },+    {+      "pad": "10",+      "text": "3I1",+      "x": 3.6,+      "y": 3.175,+      "align": "left",+      "vertical": false,+      "h": 0.6+    },+    {+      "pad": "11",+      "text": "3I0",+      "x": 3.6,+      "y": 1.905,+      "align": "left",+      "vertical": false,+      "h": 0.6+    },+    {+      "pad": "12",+      "text": "4Y",+      "x": 3.6,+      "y": 0.635,+      "align": "left",+      "vertical": false,+      "h": 0.6+    },+    {+      "pad": "13",+      "text": "4I1",+      "x": 3.6,+      "y": -0.635,+      "align": "left",+      "vertical": false,+      "h": 0.6+    },+    {+      "pad": "14",+      "text": "4I0",+      "x": 3.6,+      "y": -1.905,+      "align": "left",+      "vertical": false,+      "h": 0.6+    },+    {+      "pad": "15",+      "text": "/OE",+      "x": 3.6,+      "y": -3.175,+      "align": "left",+      "vertical": false,+      "h": 0.6+    },+    {+      "pad": "16",+      "text": "VCC",+      "x": 3.6,+      "y": -4.445,+      "align": "left",+      "vertical": false,+      "h": 0.6+    }+  ],+  "pads": [+    {+      "number": "1",+      "shape": "roundrect",+      "center_mm": [+        -2.475,+        -4.445+      ],+      "size_mm": [+        1.95,+        0.6+      ],+      "rot": 0.0+    },+    {+      "number": "2",+      "shape": "roundrect",+      "center_mm": [+        -2.475,+        -3.175+      ],+      "size_mm": [+        1.95,+        0.6+      ],+      "rot": 0.0+    },+    {+      "number": "3",+      "shape": "roundrect",+      "center_mm": [+        -2.475,+        -1.905+      ],+      "size_mm": [+        1.95,+        0.6+      ],+      "rot": 0.0+    },+    {+      "number": "4",+      "shape": "roundrect",+      "center_mm": [+        -2.475,+        -0.635+      ],+      "size_mm": [+        1.95,+        0.6+      ],+      "rot": 0.0+    },+    {+      "number": "5",+      "shape": "roundrect",+      "center_mm": [+        -2.475,+        0.635+      ],+      "size_mm": [+        1.95,+        0.6+      ],+      "rot": 0.0+    },+    {+      "number": "6",+      "shape": "roundrect",+      "center_mm": [+        -2.475,+        1.905+      ],+      "size_mm": [+        1.95,+        0.6+      ],+      "rot": 0.0+    },+    {+      "number": "7",+      "shape": "roundrect",+      "center_mm": [+        -2.475,+        3.175+      ],+      "size_mm": [+        1.95,+        0.6+      ],+      "rot": 0.0+    },+    {+      "number": "8",+      "shape": "roundrect",+      "center_mm": [+        -2.475,+        4.445+      ],+      "size_mm": [+        1.95,+        0.6+      ],+      "rot": 0.0+    },+    {+      "number": "9",+      "shape": "roundrect",+      "center_mm": [+        2.475,+        4.445+      ],+      "size_mm": [+        1.95,+        0.6+      ],+      "rot": 0.0+    },+    {+      "number": "10",+      "shape": "roundrect",+      "center_mm": [+        2.475,+        3.175+      ],+      "size_mm": [+        1.95,+        0.6+      ],+      "rot": 0.0+    },+    {+      "number": "11",+      "shape": "roundrect",+      "center_mm": [+        2.475,+        1.905+      ],+      "size_mm": [+        1.95,+        0.6+      ],+      "rot": 0.0+    },+    {+      "number": "12",+      "shape": "roundrect",+      "center_mm": [+        2.475,+        0.635+      ],+      "size_mm": [+        1.95,+        0.6+      ],+      "rot": 0.0+    },+    {+      "number": "13",+      "shape": "roundrect",+      "center_mm": [+        2.475,+        -0.635+      ],+      "size_mm": [+        1.95,+        0.6+      ],+      "rot": 0.0+    },+    {+      "number": "14",+      "shape": "roundrect",+      "center_mm": [+        2.475,+        -1.905+      ],+      "size_mm": [+        1.95,+        0.6+      ],+      "rot": 0.0+    },+    {+      "number": "15",+      "shape": "roundrect",+      "center_mm": [+        2.475,+        -3.175+      ],+      "size_mm": [+        1.95,+        0.6+      ],+      "rot": 0.0+    },+    {+      "number": "16",+      "shape": "roundrect",+      "center_mm": [+        2.475,+        -4.445+      ],+      "size_mm": [+        1.95,+        0.6+      ],+      "rot": 0.0+    }+  ]+}

@@ -1,6 +1,6 @@ {   "slug": "74lvc257ad",-  "version": "0.2.0",+  "version": "0.2.1",   "type": "component",   "description": "Nexperia Signal Switches / Encoders & Decoders / Multiplexers, SOIC-16. Datasheet-verified pinout, KiCad symbol/footprint/3D.",   "tags": [@@ -20,11 +20,226 @@     "74lvc257ad.kicad_mod",     "74lvc257ad.glb",     "74lvc257ad.step",+    "74lvc257ad-etched.step",     "74lvc257ad.lbr",     "docs/hero.png",     "docs/74lvc257ad-datasheet.pdf",     "viewers/symbol.html",     "viewers/footprint.html",-    "pads.json"-  ]-}\ No newline at end of file+    "pads.json",+    "74lvc257ad-hero.glb",+    "74lvc257ad-hero.overlay.json"+  ],+  "component": {+    "mpn": "74LVC257AD",+    "manufacturer": "Nexperia",+    "package": "SOIC-16",+    "pin_count": 16,+    "category": "Logic",+    "subcategory": "Signal Switches / Encoders & Decoders / Multiplexers",+    "datasheet": "https://assets.nexperia.com/documents/data-sheet/74LVC257AD.pdf",+    "parts": {+      "symbol": "74lvc257ad.kicad_sym",+      "footprint": "74lvc257ad.kicad_mod",+      "model_3d": "74lvc257ad-hero.glb",+      "model_3d_plain": "74lvc257ad.glb",+      "model_3d_step": "74lvc257ad-etched.step",+      "model_3d_step_plain": "74lvc257ad.step",+      "lbr": "74lvc257ad.lbr"+    },+    "distributor_links": {},+    "pins": [+      {+        "number": "1",+        "name": "S",+        "type": "input",+        "description": "Common data select input. LOW selects the nI0 inputs, HIGH selects the nI1 inputs, routed to the respective nY outputs. Schmitt-trigger CMOS input, 5.5 V tolerant."+      },+      {+        "number": "2",+        "name": "1I0",+        "type": "input",+        "description": "Channel 1 data input from source 0. Routed to output 1Y when S is LOW and /OE is LOW. Schmitt-trigger CMOS input, 5.5 V tolerant."+      },+      {+        "number": "3",+        "name": "1I1",+        "type": "input",+        "description": "Channel 1 data input from source 1. Routed to output 1Y when S is HIGH and /OE is LOW. Schmitt-trigger CMOS input, 5.5 V tolerant."+      },+      {+        "number": "4",+        "name": "1Y",+        "type": "tri_state",+        "description": "Channel 1 3-state multiplexer output. Drives either 1I0 or 1I1 according to S; high-impedance when /OE is HIGH. Rated for 50 Ω transmission-line drive at 85 °C."+      },+      {+        "number": "5",+        "name": "2I0",+        "type": "input",+        "description": "Channel 2 data input from source 0. Routed to output 2Y when S is LOW and /OE is LOW. Schmitt-trigger CMOS input, 5.5 V tolerant."+      },+      {+        "number": "6",+        "name": "2I1",+        "type": "input",+        "description": "Channel 2 data input from source 1. Routed to output 2Y when S is HIGH and /OE is LOW. Schmitt-trigger CMOS input, 5.5 V tolerant."+      },+      {+        "number": "7",+        "name": "2Y",+        "type": "tri_state",+        "description": "Channel 2 3-state multiplexer output. Drives either 2I0 or 2I1 according to S; high-impedance when /OE is HIGH. Rated for 50 Ω transmission-line drive at 85 °C."+      },+      {+        "number": "8",+        "name": "GND",+        "type": "power_in",+        "description": "Ground reference (0 V). Connect to system ground."+      },+      {+        "number": "9",+        "name": "3Y",+        "type": "tri_state",+        "description": "Channel 3 3-state multiplexer output. Drives either 3I0 or 3I1 according to S; high-impedance when /OE is HIGH. Rated for 50 Ω transmission-line drive at 85 °C."+      },+      {+        "number": "10",+        "name": "3I1",+        "type": "input",+        "description": "Channel 3 data input from source 1. Routed to output 3Y when S is HIGH and /OE is LOW. Schmitt-trigger CMOS input, 5.5 V tolerant."+      },+      {+        "number": "11",+        "name": "3I0",+        "type": "input",+        "description": "Channel 3 data input from source 0. Routed to output 3Y when S is LOW and /OE is LOW. Schmitt-trigger CMOS input, 5.5 V tolerant."+      },+      {+        "number": "12",+        "name": "4Y",+        "type": "tri_state",+        "description": "Channel 4 3-state multiplexer output. Drives either 4I0 or 4I1 according to S; high-impedance when /OE is HIGH. Rated for 50 Ω transmission-line drive at 85 °C."+      },+      {+        "number": "13",+        "name": "4I1",+        "type": "input",+        "description": "Channel 4 data input from source 1. Routed to output 4Y when S is HIGH and /OE is LOW. Schmitt-trigger CMOS input, 5.5 V tolerant."+      },+      {+        "number": "14",+        "name": "4I0",+        "type": "input",+        "description": "Channel 4 data input from source 0. Routed to output 4Y when S is LOW and /OE is LOW. Schmitt-trigger CMOS input, 5.5 V tolerant."+      },+      {+        "number": "15",+        "name": "/OE",+        "type": "input",+        "description": "3-state output enable input, active LOW. When HIGH, all nY outputs are placed into the high-impedance state; when LOW, outputs follow the selected inputs. Schmitt-trigger CMOS input, 5.5 V tolerant."+      },+      {+        "number": "16",+        "name": "VCC",+        "type": "power_in",+        "description": "Positive supply voltage. Recommended operating range 1.65 V to 3.6 V (functional down to 1.2 V); absolute maximum 6.5 V. Decouple locally to GND."+      }+    ],+    "provenance": {+      "extractor": "ds2sf",+      "datasheet": {+        "url": "https://assets.nexperia.com/documents/data-sheet/74LVC257AD.pdf",+        "pages": 14,+        "sha256": "3a23e9adf4d0e855",+        "source_tier": "mfr"+      },+      "cad": "KiCad official (CC-BY-SA 4.0)",+      "pins": {+        "total": 16,+        "described": 16,+        "cites_pages": true,+        "refuses_to_fabricate": true+      }+    },+    "viewers": {+      "symbol": "viewers/symbol.html",+      "footprint": "viewers/footprint.html"+    },+    "pin1": {+      "pad": "1",+      "at": [+        -2.475,+        -4.445+      ],+      "corner": "top-left",+      "source": "silk-marker",+      "derived_from": "SOIC-16_3.9x9.9mm_P1.27mm@sha256:f9b5075740f7816c",+      "mark": "drawn"+    },+    "logic": {+      "family_id": "74LVC257",+      "logic_family": "74LVC",+      "function_code": "257",+      "function_class": "Multiplexer",+      "function_name": "Quad 2-Input Multiplexer, 3-State",+      "manufacturer": null,+      "is_specialty": false+    },+    "models_3d": [+      {+        "file": "74lvc257ad.step",+        "role": "plain",+        "up": "Z",+        "units": "mm",+        "origin": "footprint origin = pad-pattern centre",+        "seat": "z = 0",+        "extents_mm": [+          6,+          9.9,+          1.75+        ],+        "zmin_mm": 0,+        "centre_offset_mm": 0,+        "footprint_binding": "identity",+        "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",+        "checked": "2026-10-07",+        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+      },+      {+        "file": "74lvc257ad-etched.step",+        "role": "eda",+        "up": "Z",+        "units": "mm",+        "origin": "footprint origin = pad-pattern centre",+        "seat": "z = 0",+        "extents_mm": [+          6,+          9.9,+          1.75+        ],+        "zmin_mm": 0,+        "centre_offset_mm": 0,+        "footprint_binding": "identity",+        "sha256": "e23e3edc96a3896102b68f99f6ba642222838e4b560e3c4293ca552912e9cc99",+        "checked": "2026-10-19",+        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+      }+    ]+  },+  "title": "74LVC257AD",+  "brief": "Nexperia Signal Switches / Encoders & Decoders / Multiplexers, SOIC-16. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",+  "metadata": {+    "specs": {+      "Manufacturer": "Nexperia",+      "Package": "SOIC-16",+      "Category": "Logic",+      "Pins": "16"+    }+  },+  "discovery_triggers": [+    "74lvc257ad"+  ],+  "discovery_pitch": "74LVC257AD (Nexperia) component page with datasheet-verified CAD.",+  "visibility": "public"+}