component
74HC138PW
Public Made by Adomby adom
Nexperia Signal Switches / Encoders & Decoders / Multiplexers, TSSOP-16. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
← Commit history
Publish 0.2.1
4 files changed
+665−11
74hc138pw-hero.glbadded⋯ 1 unchanged line ⋯
74hc138pw-hero.overlay.jsonadded+436@@ -0,0 +1,436 @@+{+ "spec": "adom-hero 1.4",+ "mpn": "74HC138PW",+ "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": 7.2,+ "dash_mm": 0.18,+ "gap_mm": 0.108,+ "pad_stroke_mm": 0.0432+ },+ "silkscreen": {+ "material": "Silkscreen reference lines - 30 percent opacity",+ "rgba": [+ 0.92,+ 0.96,+ 1.0,+ 0.3+ ],+ "footprint_items": 3,+ "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": 0.576,+ "orientation_flipped": false,+ "contacts_bbox_mm": [+ -3.2,+ 3.2,+ -2.405,+ 2.405+ ],+ "pads_bbox_mm": [+ -3.6,+ 3.6,+ -2.475,+ 2.475+ ],+ "seating_z_mm": -0.0+ },+ "sources": {+ "glb": "74hc138pw-etched.glb",+ "glb_sha256": "e4ffd915ea8de10ad31395d4c24df993077d4f655897cb3b5c2d7c3160e67586",+ "footprint": "74hc138pw.kicad_mod",+ "footprint_sha256": "fbac79fc5f310754726589d67071a422c429216f843ecd6013bbe2e6a49e7064",+ "pins": "page.json component.pins",+ "pins_sha256": "3c98c7e837a7a50169715ac7c2ea262feec045ef58537f137376b1c4e50e9fb3"+ },+ "generator": "adom-wiki 1.8.24 (component_hero)",+ "labels": [+ {+ "pad": "1",+ "text": "A0",+ "x": -4.29,+ "y": -2.275,+ "align": "right",+ "vertical": false,+ "h": 0.325+ },+ {+ "pad": "2",+ "text": "A1",+ "x": -3.7,+ "y": -1.625,+ "align": "right",+ "vertical": false,+ "h": 0.325+ },+ {+ "pad": "3",+ "text": "A2",+ "x": -3.7,+ "y": -0.975,+ "align": "right",+ "vertical": false,+ "h": 0.325+ },+ {+ "pad": "4",+ "text": "E1",+ "x": -3.7,+ "y": -0.325,+ "align": "right",+ "vertical": false,+ "h": 0.325+ },+ {+ "pad": "5",+ "text": "E2",+ "x": -3.7,+ "y": 0.325,+ "align": "right",+ "vertical": false,+ "h": 0.325+ },+ {+ "pad": "6",+ "text": "E3",+ "x": -3.7,+ "y": 0.975,+ "align": "right",+ "vertical": false,+ "h": 0.325+ },+ {+ "pad": "7",+ "text": "Y7",+ "x": -3.7,+ "y": 1.625,+ "align": "right",+ "vertical": false,+ "h": 0.325+ },+ {+ "pad": "8",+ "text": "GND",+ "x": -3.7,+ "y": 2.275,+ "align": "right",+ "vertical": false,+ "h": 0.325+ },+ {+ "pad": "9",+ "text": "Y6",+ "x": 3.7,+ "y": 2.275,+ "align": "left",+ "vertical": false,+ "h": 0.325+ },+ {+ "pad": "10",+ "text": "Y5",+ "x": 3.7,+ "y": 1.625,+ "align": "left",+ "vertical": false,+ "h": 0.325+ },+ {+ "pad": "11",+ "text": "Y4",+ "x": 3.7,+ "y": 0.975,+ "align": "left",+ "vertical": false,+ "h": 0.325+ },+ {+ "pad": "12",+ "text": "Y3",+ "x": 3.7,+ "y": 0.325,+ "align": "left",+ "vertical": false,+ "h": 0.325+ },+ {+ "pad": "13",+ "text": "Y2",+ "x": 3.7,+ "y": -0.325,+ "align": "left",+ "vertical": false,+ "h": 0.325+ },+ {+ "pad": "14",+ "text": "Y1",+ "x": 3.7,+ "y": -0.975,+ "align": "left",+ "vertical": false,+ "h": 0.325+ },+ {+ "pad": "15",+ "text": "Y0",+ "x": 3.7,+ "y": -1.625,+ "align": "left",+ "vertical": false,+ "h": 0.325+ },+ {+ "pad": "16",+ "text": "VCC",+ "x": 3.7,+ "y": -2.275,+ "align": "left",+ "vertical": false,+ "h": 0.325+ }+ ],+ "pads": [+ {+ "number": "1",+ "shape": "roundrect",+ "center_mm": [+ -2.8625,+ -2.275+ ],+ "size_mm": [+ 1.475,+ 0.4+ ],+ "rot": 0.0+ },+ {+ "number": "2",+ "shape": "roundrect",+ "center_mm": [+ -2.8625,+ -1.625+ ],+ "size_mm": [+ 1.475,+ 0.4+ ],+ "rot": 0.0+ },+ {+ "number": "3",+ "shape": "roundrect",+ "center_mm": [+ -2.8625,+ -0.975+ ],+ "size_mm": [+ 1.475,+ 0.4+ ],+ "rot": 0.0+ },+ {+ "number": "4",+ "shape": "roundrect",+ "center_mm": [+ -2.8625,+ -0.325+ ],+ "size_mm": [+ 1.475,+ 0.4+ ],+ "rot": 0.0+ },+ {+ "number": "5",+ "shape": "roundrect",+ "center_mm": [+ -2.8625,+ 0.325+ ],+ "size_mm": [+ 1.475,+ 0.4+ ],+ "rot": 0.0+ },+ {+ "number": "6",+ "shape": "roundrect",+ "center_mm": [+ -2.8625,+ 0.975+ ],+ "size_mm": [+ 1.475,+ 0.4+ ],+ "rot": 0.0+ },+ {+ "number": "7",+ "shape": "roundrect",+ "center_mm": [+ -2.8625,+ 1.625+ ],+ "size_mm": [+ 1.475,+ 0.4+ ],+ "rot": 0.0+ },+ {+ "number": "8",+ "shape": "roundrect",+ "center_mm": [+ -2.8625,+ 2.275+ ],+ "size_mm": [+ 1.475,+ 0.4+ ],+ "rot": 0.0+ },+ {+ "number": "9",+ "shape": "roundrect",+ "center_mm": [+ 2.8625,+ 2.275+ ],+ "size_mm": [+ 1.475,+ 0.4+ ],+ "rot": 0.0+ },+ {+ "number": "10",+ "shape": "roundrect",+ "center_mm": [+ 2.8625,+ 1.625+ ],+ "size_mm": [+ 1.475,+ 0.4+ ],+ "rot": 0.0+ },+ {+ "number": "11",+ "shape": "roundrect",+ "center_mm": [+ 2.8625,+ 0.975+ ],+ "size_mm": [+ 1.475,+ 0.4+ ],+ "rot": 0.0+ },+ {+ "number": "12",+ "shape": "roundrect",+ "center_mm": [+ 2.8625,+ 0.325+ ],+ "size_mm": [+ 1.475,+ 0.4+ ],+ "rot": 0.0+ },+ {+ "number": "13",+ "shape": "roundrect",+ "center_mm": [+ 2.8625,+ -0.325+ ],+ "size_mm": [+ 1.475,+ 0.4+ ],+ "rot": 0.0+ },+ {+ "number": "14",+ "shape": "roundrect",+ "center_mm": [+ 2.8625,+ -0.975+ ],+ "size_mm": [+ 1.475,+ 0.4+ ],+ "rot": 0.0+ },+ {+ "number": "15",+ "shape": "roundrect",+ "center_mm": [+ 2.8625,+ -1.625+ ],+ "size_mm": [+ 1.475,+ 0.4+ ],+ "rot": 0.0+ },+ {+ "number": "16",+ "shape": "roundrect",+ "center_mm": [+ 2.8625,+ -2.275+ ],+ "size_mm": [+ 1.475,+ 0.4+ ],+ "rot": 0.0+ }+ ]+}
package.json+219−4@@ -1,6 +1,6 @@ { "slug": "74hc138pw",- "version": "0.2.0",+ "version": "0.2.1", "type": "component", "description": "Nexperia Signal Switches / Encoders & Decoders / Multiplexers, TSSOP-16. Datasheet-verified pinout, KiCad symbol/footprint/3D.", "tags": [@@ -20,11 +20,226 @@ "74hc138pw.kicad_mod", "74hc138pw.glb", "74hc138pw.step",+ "74hc138pw-etched.step", "74hc138pw.lbr", "docs/hero.png", "docs/74hc138pw-datasheet.pdf", "viewers/symbol.html", "viewers/footprint.html",- "pads.json"- ]-}+ "pads.json",+ "74hc138pw-hero.glb",+ "74hc138pw-hero.overlay.json"+ ],+ "component": {+ "mpn": "74HC138PW",+ "manufacturer": "Nexperia",+ "package": "TSSOP-16",+ "pin_count": 16,+ "category": "Logic",+ "subcategory": "Signal Switches / Encoders & Decoders / Multiplexers",+ "datasheet": "https://assets.nexperia.com/documents/data-sheet/74HC138PW.pdf",+ "parts": {+ "symbol": "74hc138pw.kicad_sym",+ "footprint": "74hc138pw.kicad_mod",+ "model_3d": "74hc138pw-hero.glb",+ "model_3d_plain": "74hc138pw.glb",+ "model_3d_step": "74hc138pw-etched.step",+ "model_3d_step_plain": "74hc138pw.step",+ "lbr": "74hc138pw.lbr"+ },+ "distributor_links": {},+ "pins": [+ {+ "number": "1",+ "name": "A0",+ "type": "input",+ "description": "Address input 0 (LSB). Binary-weighted select input to the 3-to-8 decoder."+ },+ {+ "number": "2",+ "name": "A1",+ "type": "input",+ "description": "Address input 1. Binary-weighted select input to the 3-to-8 decoder."+ },+ {+ "number": "3",+ "name": "A2",+ "type": "input",+ "description": "Address input 2 (MSB). Binary-weighted select input to the 3-to-8 decoder."+ },+ {+ "number": "4",+ "name": "E1",+ "type": "input",+ "description": "Enable input 1, active LOW. All outputs are forced HIGH when E1 is HIGH."+ },+ {+ "number": "5",+ "name": "E2",+ "type": "input",+ "description": "Enable input 2, active LOW. All outputs are forced HIGH when E2 is HIGH."+ },+ {+ "number": "6",+ "name": "E3",+ "type": "input",+ "description": "Enable input 3, active HIGH. All outputs are forced HIGH when E3 is LOW."+ },+ {+ "number": "7",+ "name": "Y7",+ "type": "output",+ "description": "Decoded output 7, active LOW. Asserts LOW when A2:A0 = 111 and all enables are active."+ },+ {+ "number": "8",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference (0 V)."+ },+ {+ "number": "9",+ "name": "Y6",+ "type": "output",+ "description": "Decoded output 6, active LOW. Asserts LOW when A2:A0 = 110 and all enables are active."+ },+ {+ "number": "10",+ "name": "Y5",+ "type": "output",+ "description": "Decoded output 5, active LOW. Asserts LOW when A2:A0 = 101 and all enables are active."+ },+ {+ "number": "11",+ "name": "Y4",+ "type": "output",+ "description": "Decoded output 4, active LOW. Asserts LOW when A2:A0 = 100 and all enables are active."+ },+ {+ "number": "12",+ "name": "Y3",+ "type": "output",+ "description": "Decoded output 3, active LOW. Asserts LOW when A2:A0 = 011 and all enables are active."+ },+ {+ "number": "13",+ "name": "Y2",+ "type": "output",+ "description": "Decoded output 2, active LOW. Asserts LOW when A2:A0 = 010 and all enables are active."+ },+ {+ "number": "14",+ "name": "Y1",+ "type": "output",+ "description": "Decoded output 1, active LOW. Asserts LOW when A2:A0 = 001 and all enables are active."+ },+ {+ "number": "15",+ "name": "Y0",+ "type": "output",+ "description": "Decoded output 0, active LOW. Asserts LOW when A2:A0 = 000 and all enables are active."+ },+ {+ "number": "16",+ "name": "VCC",+ "type": "power_in",+ "description": "Supply voltage, 2.0 V to 6.0 V."+ }+ ],+ "provenance": {+ "extractor": "ds2sf",+ "datasheet": {+ "url": "https://assets.nexperia.com/documents/data-sheet/74HC138PW.pdf",+ "pages": 15,+ "sha256": "645120bc441507e9",+ "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": [+ -2.8625,+ -2.275+ ],+ "corner": "top-left",+ "source": "silk-marker",+ "derived_from": "TSSOP-16_4.4x5mm_P0.65mm@sha256:fbac79fc5f310754",+ "mark": "drawn"+ },+ "logic": {+ "family_id": "74HC138",+ "logic_family": "74HC",+ "function_code": "138",+ "function_class": "Decoder",+ "function_name": "3-to-8 Line Decoder/Demultiplexer",+ "manufacturer": null,+ "is_specialty": false+ },+ "models_3d": [+ {+ "file": "74hc138pw.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6.4,+ 5,+ 1.1+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "6ad5e98224d02a427d9a6b929a28dbc158b9925fba5adec12db05079f1016948",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "74hc138pw-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6.4,+ 5,+ 1.1+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "474a84a35f14dcf6550f8f56112b4e1b05d4dfe740790ccf9ce8353b1d47ab58",+ "checked": "2026-10-19",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "title": "74HC138PW",+ "brief": "Nexperia Signal Switches / Encoders & Decoders / Multiplexers, TSSOP-16. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",+ "metadata": {+ "specs": {+ "Manufacturer": "Nexperia",+ "Package": "TSSOP-16",+ "Category": "Logic",+ "Pins": "16"+ }+ },+ "discovery_triggers": [+ "74hc138pw"+ ],+ "discovery_pitch": "74HC138PW (Nexperia) component page with datasheet-verified CAD.",+ "visibility": "public"+}
page.json+10−7@@ -4,7 +4,7 @@ "slug": "74hc138pw", "title": "74HC138PW", "brief": "Nexperia Signal Switches / Encoders & Decoders / Multiplexers, TSSOP-16. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",- "version": "0.2.0",+ "version": "0.2.1", "license": "CC-BY-SA-4.0", "tags": [ "component",@@ -247,10 +247,13 @@ "docs/hero.png", "docs/74hc138pw-datasheet.pdf", "viewers/symbol.html",- "viewers/footprint.html"+ "viewers/footprint.html",+ "pads.json",+ "74hc138pw-hero.glb",+ "74hc138pw-hero.overlay.json" ],- "visibility": {- "public": true- },- "updated_at": "2026-09-24T14:51:48.893Z"-}+ "visibility": "public",+ "updated_at": "2026-09-24T14:51:48.893Z",+ "description": "Nexperia Signal Switches / Encoders & Decoders / Multiplexers, TSSOP-16. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "org": "adom"+}