74HC02M

{
  "schema_version": 1,
  "type": "component",
  "slug": "74hc02m",
  "title": "74HC02M",
  "brief": "HGSEMI Gates, SOIC-14. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "logic",
    "74hc02m"
  ],
  "component": {
    "mpn": "74HC02M",
    "manufacturer": "HGSEMI",
    "package": "SOIC-14",
    "pin_count": 14,
    "category": "Logic",
    "subcategory": "Gates",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/95635374d7ec744bb3c7049f495bf48d.pdf",
    "parts": {
      "symbol": "74hc02m.kicad_sym",
      "footprint": "74hc02m.kicad_mod",
      "model_3d": "74hc02m-etched.glb",
      "model_3d_plain": "74hc02m.glb",
      "model_3d_step": "74hc02m-etched.step",
      "model_3d_step_plain": "74hc02m.step",
      "lbr": "74hc02m.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "Y1",
        "type": "output",
        "description": "Gate 1 NOR output. Y1 = NOT(A1 + B1). CMOS output capable of driving 10 LSTTL loads; VOH >= VCC-0.1 V and VOL <= 0.1 V at |Iout| <= 20 uA."
      },
      {
        "number": "2",
        "name": "A1",
        "type": "input",
        "description": "Gate 1 NOR input A. High-impedance CMOS input; VIH >= 0.7*VCC and VIL <= 0.3*VCC (approx). Maximum input leakage 1.0 uA. Unused inputs must be tied to VCC or GND."
      },
      {
        "number": "3",
        "name": "B1",
        "type": "input",
        "description": "Gate 1 NOR input B. High-impedance CMOS input; must be tied to a valid logic level (unused inputs to VCC or GND)."
      },
      {
        "number": "4",
        "name": "Y2",
        "type": "output",
        "description": "Gate 2 NOR output. Y2 = NOT(A2 + B2). CMOS push-pull output; drives 10 LSTTL loads."
      },
      {
        "number": "5",
        "name": "A2",
        "type": "input",
        "description": "Gate 2 NOR input A. High-impedance CMOS input."
      },
      {
        "number": "6",
        "name": "B2",
        "type": "input",
        "description": "Gate 2 NOR input B. High-impedance CMOS input."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground / 0 V reference. All inputs and outputs are referenced to GND."
      },
      {
        "number": "8",
        "name": "A3",
        "type": "input",
        "description": "Gate 3 NOR input A. High-impedance CMOS input."
      },
      {
        "number": "9",
        "name": "B3",
        "type": "input",
        "description": "Gate 3 NOR input B. High-impedance CMOS input."
      },
      {
        "number": "10",
        "name": "Y3",
        "type": "output",
        "description": "Gate 3 NOR output. Y3 = NOT(A3 + B3). CMOS push-pull output."
      },
      {
        "number": "11",
        "name": "A4",
        "type": "input",
        "description": "Gate 4 NOR input A. High-impedance CMOS input."
      },
      {
        "number": "12",
        "name": "B4",
        "type": "input",
        "description": "Gate 4 NOR input B. High-impedance CMOS input."
      },
      {
        "number": "13",
        "name": "Y4",
        "type": "output",
        "description": "Gate 4 NOR output. Y4 = NOT(A4 + B4). CMOS push-pull output."
      },
      {
        "number": "14",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply. Operating range 2.0 V to 6.0 V (absolute maximum 7.0 V). Bypass locally to GND with a 0.1 uF ceramic capacitor."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/95635374d7ec744bb3c7049f495bf48d.pdf",
        "pages": 9,
        "sha256": "868940124e153af6",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 14,
        "described": 14,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "logic": {
      "family_id": "74HC02",
      "logic_family": "74HC",
      "function_code": "02",
      "function_class": "Gate",
      "function_name": "Quad 2-Input NOR Gate",
      "manufacturer": null,
      "is_specialty": false
    },
    "models_3d": [
      {
        "file": "74hc02m.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          8.7,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "3b9a775da256c8afcc28dcddfbc2eb3f266107fe61ce8446d96f2c52b6f44a70",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "74hc02m-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          8.7,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "9eb3189edfdeb91a6f2e55d258011f039e4fae10c760e11eb8cb46bfcfbe2a64",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "HGSEMI",
      "Package": "SOIC-14",
      "Category": "Logic",
      "Pins": "14"
    }
  },
  "variants": [
    {
      "mpn": "74HC02MM/TR",
      "kind": "packaging"
    },
    {
      "mpn": "74HC02MN",
      "kind": "packaging"
    },
    {
      "mpn": "74HC02MMT/TR",
      "kind": "packaging"
    },
    {
      "mpn": "74HC02MLQ/TR",
      "kind": "packaging"
    }
  ],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "74hc02m"
  ],
  "discovery_pitch": "74HC02M (HGSEMI) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "74hc02m.kicad_sym",
    "74hc02m.kicad_mod",
    "74hc02m.glb",
    "74hc02m.step",
    "74hc02m.lbr",
    "docs/hero.png",
    "docs/74hc02m-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T14:49:39.163Z"
}