74HC76S

{
  "schema_version": 1,
  "type": "component",
  "slug": "74hc76s",
  "title": "74HC76S",
  "brief": "GR Flip Flops, SOP-16. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "logic",
    "74hc76s"
  ],
  "component": {
    "mpn": "74HC76S",
    "manufacturer": "GR",
    "package": "SOP-16",
    "pin_count": 16,
    "category": "Logic",
    "subcategory": "Flip Flops",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2403121630_GR-74HC76S_C22357611.pdf",
    "parts": {
      "symbol": "74hc76s.kicad_sym",
      "footprint": "74hc76s.kicad_mod",
      "model_3d": "74hc76s-etched.glb",
      "model_3d_plain": "74hc76s.glb",
      "model_3d_step": "74hc76s-etched.step",
      "model_3d_step_plain": "74hc76s.step",
      "lbr": "74hc76s.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "1CK",
        "type": "input",
        "description": "Clock input for flip-flop 1 (active on falling edge). Schmitt-compatible CMOS input; VIH >= 0.7*VCC, VIL <= 0.3*VCC (approx)."
      },
      {
        "number": "2",
        "name": "1PR",
        "type": "input",
        "description": "Preset input for flip-flop 1, active LOW. Asynchronously forces 1Q HIGH / 1Q-bar LOW."
      },
      {
        "number": "3",
        "name": "1CLR",
        "type": "input",
        "description": "Clear input for flip-flop 1, active LOW. Asynchronously forces 1Q LOW / 1Q-bar HIGH."
      },
      {
        "number": "4",
        "name": "1J",
        "type": "input",
        "description": "J data input for flip-flop 1. Sampled on the falling edge of 1CK together with 1K to determine next-state behaviour (hold/set/reset/toggle)."
      },
      {
        "number": "5",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply, 2.0 V to 6.0 V (5 V typical). Absolute maximum -0.5 V to 6.5 V."
      },
      {
        "number": "6",
        "name": "2CK",
        "type": "input",
        "description": "Clock input for flip-flop 2 (active on falling edge)."
      },
      {
        "number": "7",
        "name": "2PR",
        "type": "input",
        "description": "Preset input for flip-flop 2, active LOW. Asynchronously forces 2Q HIGH / 2Q-bar LOW."
      },
      {
        "number": "8",
        "name": "2CLR",
        "type": "input",
        "description": "Clear input for flip-flop 2, active LOW. Asynchronously forces 2Q LOW / 2Q-bar HIGH."
      },
      {
        "number": "9",
        "name": "2J",
        "type": "input",
        "description": "J data input for flip-flop 2. Sampled on the falling edge of 2CK together with 2K."
      },
      {
        "number": "10",
        "name": "2Q_N",
        "type": "output",
        "description": "Inverted Q output for flip-flop 2. Push-pull CMOS output; can drive up to 10 LSTTL loads (approx. 4 mA at VCC=4.5 V)."
      },
      {
        "number": "11",
        "name": "2Q",
        "type": "output",
        "description": "Non-inverted Q output for flip-flop 2. Push-pull CMOS; drives up to 10 LSTTL loads."
      },
      {
        "number": "12",
        "name": "2K",
        "type": "input",
        "description": "K data input for flip-flop 2. Sampled on the falling edge of 2CK together with 2J."
      },
      {
        "number": "13",
        "name": "GND",
        "type": "power_in",
        "description": "Ground (0 V) reference for supply and I/O."
      },
      {
        "number": "14",
        "name": "1Q_N",
        "type": "output",
        "description": "Inverted Q output for flip-flop 1. Push-pull CMOS; drives up to 10 LSTTL loads."
      },
      {
        "number": "15",
        "name": "1Q",
        "type": "output",
        "description": "Non-inverted Q output for flip-flop 1. Push-pull CMOS; drives up to 10 LSTTL loads."
      },
      {
        "number": "16",
        "name": "1K",
        "type": "input",
        "description": "K data input for flip-flop 1. Sampled on the falling edge of 1CK together with 1J."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2403121630_GR-74HC76S_C22357611.pdf",
        "pages": 5,
        "sha256": "b9800ce078bc772d",
        "source_tier": "lcsc"
      },
      "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"
    },
    "logic": {
      "family_id": "74HC76",
      "logic_family": "74HC",
      "function_code": "76",
      "function_class": null,
      "function_name": null,
      "manufacturer": null,
      "is_specialty": false
    },
    "models_3d": [
      {
        "file": "74hc76s.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": "74hc76s-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": "ea9c3d7d9e23e5485f15d37982d03b22fb8bbbe9151928e0b22be3cda8edd6f1",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "GR",
      "Package": "SOP-16",
      "Category": "Logic",
      "Pins": "16"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "74hc76s"
  ],
  "discovery_pitch": "74HC76S (GR) 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",
    "74hc76s.kicad_sym",
    "74hc76s.kicad_mod",
    "74hc76s.glb",
    "74hc76s.step",
    "74hc76s-etched.step",
    "74hc76s.lbr",
    "docs/hero.png",
    "docs/74hc76s-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T15:03:41.028Z"
}