component
74HC123D
Public Made by Adomby adom
Nexperia Monostable Multivibrators, SOIC-16. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
← Commit history
Publish 0.2.2
4 files changed
+657−6
74hc123d-hero.glbadded⋯ 1 unchanged line ⋯
74hc123d-hero.overlay.jsonadded+436@@ -0,0 +1,436 @@+{+ "spec": "adom-hero 1.4",+ "mpn": "74HC123D",+ "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": "74hc123d-etched.glb",+ "glb_sha256": "cdb9e8f92f25be1491466c169e49feae0b1c59dae0328dbbd793a55595f0eb99",+ "footprint": "74hc123d.kicad_mod",+ "footprint_sha256": "f9b5075740f7816c540ae1137f025d659beaec522ed7b86b1a5274cc9a2d8a25",+ "pins": "page.json component.pins",+ "pins_sha256": "9b18cc6a9feabc165353311b72598bd9b49ea90408a002b52fbe989dd690abe4"+ },+ "generator": "adom-wiki 1.8.24 (component_hero)",+ "labels": [+ {+ "pad": "1",+ "text": "1A",+ "x": -3.6,+ "y": -4.445,+ "align": "right",+ "vertical": false,+ "h": 0.6+ },+ {+ "pad": "2",+ "text": "1B",+ "x": -3.6,+ "y": -3.175,+ "align": "right",+ "vertical": false,+ "h": 0.6+ },+ {+ "pad": "3",+ "text": "1RD",+ "x": -3.6,+ "y": -1.905,+ "align": "right",+ "vertical": false,+ "h": 0.6+ },+ {+ "pad": "4",+ "text": "1Q",+ "x": -3.6,+ "y": -0.635,+ "align": "right",+ "vertical": false,+ "h": 0.6+ },+ {+ "pad": "5",+ "text": "2Q",+ "x": -3.6,+ "y": 0.635,+ "align": "right",+ "vertical": false,+ "h": 0.6+ },+ {+ "pad": "6",+ "text": "2CEXT",+ "x": -3.6,+ "y": 1.905,+ "align": "right",+ "vertical": false,+ "h": 0.6+ },+ {+ "pad": "7",+ "text": "2REXT/CEXT",+ "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": "2A",+ "x": 3.6,+ "y": 4.445,+ "align": "left",+ "vertical": false,+ "h": 0.6+ },+ {+ "pad": "10",+ "text": "2B",+ "x": 3.6,+ "y": 3.175,+ "align": "left",+ "vertical": false,+ "h": 0.6+ },+ {+ "pad": "11",+ "text": "2RD",+ "x": 3.6,+ "y": 1.905,+ "align": "left",+ "vertical": false,+ "h": 0.6+ },+ {+ "pad": "12",+ "text": "2Q",+ "x": 3.6,+ "y": 0.635,+ "align": "left",+ "vertical": false,+ "h": 0.6+ },+ {+ "pad": "13",+ "text": "1Q",+ "x": 3.6,+ "y": -0.635,+ "align": "left",+ "vertical": false,+ "h": 0.6+ },+ {+ "pad": "14",+ "text": "1CEXT",+ "x": 3.6,+ "y": -1.905,+ "align": "left",+ "vertical": false,+ "h": 0.6+ },+ {+ "pad": "15",+ "text": "1REXT/CEXT",+ "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+ }+ ]+}
package.json+216−3@@ -1,6 +1,6 @@ { "slug": "74hc123d",- "version": "0.2.1",+ "version": "0.2.2", "type": "component", "description": "Nexperia Monostable Multivibrators, SOIC-16. Datasheet-verified pinout, KiCad symbol/footprint/3D.", "tags": [@@ -27,7 +27,220 @@ "viewers/symbol.html", "viewers/footprint.html", "pads.json",- "74hc123d-etched.glb"+ "74hc123d-etched.glb",+ "74hc123d-hero.glb",+ "74hc123d-hero.overlay.json" ],- "visibility": "public"+ "visibility": "public",+ "component": {+ "mpn": "74HC123D",+ "manufacturer": "Nexperia",+ "package": "SOIC-16",+ "pin_count": 16,+ "category": "Logic",+ "subcategory": "Monostable Multivibrators",+ "datasheet": "https://assets.nexperia.com/documents/data-sheet/74HC123D.pdf",+ "parts": {+ "symbol": "74hc123d.kicad_sym",+ "footprint": "74hc123d.kicad_mod",+ "model_3d": "74hc123d-hero.glb",+ "model_3d_plain": "74hc123d.glb",+ "model_3d_step": "74hc123d-etched.step",+ "model_3d_step_plain": "74hc123d.step",+ "lbr": "74hc123d.lbr"+ },+ "distributor_links": {},+ "pins": [+ {+ "number": "1",+ "name": "1A",+ "type": "input",+ "description": "Negative-edge triggered input for monostable 1 (Schmitt-trigger input). A HIGH-to-LOW transition on 1A triggers a pulse when 1B is HIGH and 1RD is HIGH."+ },+ {+ "number": "2",+ "name": "1B",+ "type": "input",+ "description": "Positive-edge triggered input for monostable 1 (Schmitt-trigger input). A LOW-to-HIGH transition on 1B triggers a pulse when 1A is LOW and 1RD is HIGH."+ },+ {+ "number": "3",+ "name": "1RD",+ "type": "input",+ "description": "Direct reset (active LOW) and positive-edge triggered input for monostable 1. Driving LOW terminates the output pulse; a LOW-to-HIGH transition can also trigger a pulse."+ },+ {+ "number": "4",+ "name": "1Q",+ "type": "output",+ "description": "Active LOW inverted output of monostable 1. Complement of 1Q; goes HIGH during the timed output pulse."+ },+ {+ "number": "5",+ "name": "2Q",+ "type": "output",+ "description": "Active HIGH output of monostable 2. Goes HIGH for the programmed pulse width when triggered."+ },+ {+ "number": "6",+ "name": "2CEXT",+ "type": "passive",+ "description": "External timing capacitor connection for monostable 2. Connect CEXT between this pin and 2REXT/CEXT (pin 7); pulse width = K x REXT x CEXT."+ },+ {+ "number": "7",+ "name": "2REXT/CEXT",+ "type": "passive",+ "description": "External timing resistor and capacitor connection for monostable 2. REXT ties from this pin to VCC (2 kOhm to 1000 kOhm typical); CEXT ties from this pin to 2CEXT (pin 6)."+ },+ {+ "number": "8",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference (0 V)."+ },+ {+ "number": "9",+ "name": "2A",+ "type": "input",+ "description": "Negative-edge triggered input for monostable 2 (Schmitt-trigger input). A HIGH-to-LOW transition on 2A triggers a pulse when 2B is HIGH and 2RD is HIGH."+ },+ {+ "number": "10",+ "name": "2B",+ "type": "input",+ "description": "Positive-edge triggered input for monostable 2 (Schmitt-trigger input). A LOW-to-HIGH transition on 2B triggers a pulse when 2A is LOW and 2RD is HIGH."+ },+ {+ "number": "11",+ "name": "2RD",+ "type": "input",+ "description": "Direct reset (active LOW) and positive-edge triggered input for monostable 2. Driving LOW terminates the output pulse; a LOW-to-HIGH transition can also trigger a pulse."+ },+ {+ "number": "12",+ "name": "2Q",+ "type": "output",+ "description": "Active LOW inverted output of monostable 2. Complement of 2Q; goes HIGH during the timed output pulse."+ },+ {+ "number": "13",+ "name": "1Q",+ "type": "output",+ "description": "Active HIGH output of monostable 1. Goes HIGH for the programmed pulse width when triggered."+ },+ {+ "number": "14",+ "name": "1CEXT",+ "type": "passive",+ "description": "External timing capacitor connection for monostable 1. Connect CEXT between this pin and 1REXT/CEXT (pin 15); pulse width = K x REXT x CEXT."+ },+ {+ "number": "15",+ "name": "1REXT/CEXT",+ "type": "passive",+ "description": "External timing resistor and capacitor connection for monostable 1. REXT ties from this pin to VCC (2 kOhm to 1000 kOhm typical); CEXT ties from this pin to 1CEXT (pin 14)."+ },+ {+ "number": "16",+ "name": "VCC",+ "type": "power_in",+ "description": "Supply voltage. 2.0 V to 6.0 V (74HC123) or 4.5 V to 5.5 V (74HCT123). Absolute maximum 7 V."+ }+ ],+ "provenance": {+ "extractor": "ds2sf",+ "datasheet": {+ "url": "https://assets.nexperia.com/documents/data-sheet/74HC123D.pdf",+ "pages": 20,+ "sha256": "0b5ba7a32cf4830a",+ "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": "74HC123",+ "logic_family": "74HC",+ "function_code": "123",+ "function_class": "Multivibrator",+ "function_name": "Dual Retriggerable Monostable Multivibrator",+ "manufacturer": null,+ "is_specialty": false+ },+ "models_3d": [+ {+ "file": "74hc123d.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": "74hc123d-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": "a405f6b78d1c23c222ed52680199b3687f737e7e961cb56eb42cc9f379b5a8a0",+ "checked": "2026-11-12",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "title": "74HC123D",+ "brief": "Nexperia Monostable Multivibrators, SOIC-16. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",+ "metadata": {+ "specs": {+ "Manufacturer": "Nexperia",+ "Package": "SOIC-16",+ "Category": "Logic",+ "Pins": "16"+ }+ },+ "discovery_triggers": [+ "74hc123d"+ ],+ "discovery_pitch": "74HC123D (Nexperia) component page with datasheet-verified CAD." }
page.json+5−3@@ -4,7 +4,7 @@ "slug": "74hc123d", "title": "74HC123D", "brief": "Nexperia Monostable Multivibrators, SOIC-16. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",- "version": "0.2.1",+ "version": "0.2.2", "license": "CC-BY-SA-4.0", "tags": [ "component",@@ -249,10 +249,12 @@ "viewers/symbol.html", "viewers/footprint.html", "pads.json",- "74hc123d-etched.glb"+ "74hc123d-etched.glb",+ "74hc123d-hero.glb",+ "74hc123d-hero.overlay.json" ], "visibility": "public", "updated_at": "2026-09-24T14:50:43.069Z", "description": "Nexperia Monostable Multivibrators, SOIC-16. Datasheet-verified pinout, KiCad symbol/footprint/3D.", "org": "adom"-}+}