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Ray Set visibility: public 826376f 6h ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "cd74hct574qpwrg4q1",
  "title": "CD74HCT574QPWRG4Q1",
  "brief": "Texas Instruments Flip Flops, TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "logic",
    "cd74hct574qpwrg4q1",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "CD74HCT574QPWRG4Q1",
    "manufacturer": "Texas Instruments",
    "package": "TSSOP-20",
    "pin_count": 20,
    "category": "Logic",
    "subcategory": "Flip Flops",
    "datasheet": "https://www.ti.com/cn/lit/gpn/cd74hct574-q1",
    "parts": {
      "symbol": "cd74hct574qpwrg4q1.kicad_sym",
      "footprint": "cd74hct574qpwrg4q1.kicad_mod",
      "model_3d": "cd74hct574qpwrg4q1-hero.glb",
      "model_3d_plain": "cd74hct574qpwrg4q1.glb",
      "model_3d_step": "cd74hct574qpwrg4q1-etched.step",
      "model_3d_step_plain": "cd74hct574qpwrg4q1.step",
      "lbr": "cd74hct574qpwrg4q1.lbr"
    },
    "distributor_links": {
      "lcsc": "C1879813",
      "digikey": "2156-CD74HCT574QPWRG4Q1-296-ND",
      "mouser": "595-74HCT574QPWRG4Q1"
    },
    "distributor_check": {
      "checked_at": "2026-10-07T08:31:08Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "2156-CD74HCT574QPWRG4Q1-296-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-74HCT574QPWRG4Q1",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "OE",
        "type": "input",
        "description": "Output enable control; outputs in high-impedance state when high, active when low"
      },
      {
        "number": "2",
        "name": "D0",
        "type": "input",
        "description": "Data input D0; captured on low-to-high clock transition"
      },
      {
        "number": "3",
        "name": "D1",
        "type": "input",
        "description": "Data input D1; captured on low-to-high clock transition"
      },
      {
        "number": "4",
        "name": "D2",
        "type": "input",
        "description": "Data input D2; captured on low-to-high clock transition"
      },
      {
        "number": "5",
        "name": "D3",
        "type": "input",
        "description": "Data input D3; captured on low-to-high clock transition"
      },
      {
        "number": "6",
        "name": "D4",
        "type": "input",
        "description": "Data input D4; captured on low-to-high clock transition"
      },
      {
        "number": "7",
        "name": "D5",
        "type": "input",
        "description": "Data input D5; captured on low-to-high clock transition"
      },
      {
        "number": "8",
        "name": "D6",
        "type": "input",
        "description": "Data input D6; captured on low-to-high clock transition"
      },
      {
        "number": "9",
        "name": "D7",
        "type": "input",
        "description": "Data input D7; captured on low-to-high clock transition"
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference (0V)"
      },
      {
        "number": "11",
        "name": "CP",
        "type": "input",
        "description": "Clock pulse input; edge-triggered on low-to-high transition"
      },
      {
        "number": "12",
        "name": "Q7",
        "type": "tri_state",
        "description": "Data output Q7; 3-state output, high impedance when OE is high"
      },
      {
        "number": "13",
        "name": "Q6",
        "type": "tri_state",
        "description": "Data output Q6; 3-state output, high impedance when OE is high"
      },
      {
        "number": "14",
        "name": "Q5",
        "type": "tri_state",
        "description": "Data output Q5; 3-state output, high impedance when OE is high"
      },
      {
        "number": "15",
        "name": "Q4",
        "type": "tri_state",
        "description": "Data output Q4; 3-state output, high impedance when OE is high"
      },
      {
        "number": "16",
        "name": "Q3",
        "type": "tri_state",
        "description": "Data output Q3; 3-state output, high impedance when OE is high"
      },
      {
        "number": "17",
        "name": "Q2",
        "type": "tri_state",
        "description": "Data output Q2; 3-state output, high impedance when OE is high"
      },
      {
        "number": "18",
        "name": "Q1",
        "type": "tri_state",
        "description": "Data output Q1; 3-state output, high impedance when OE is high"
      },
      {
        "number": "19",
        "name": "Q0",
        "type": "tri_state",
        "description": "Data output Q0; 3-state output, high impedance when OE is high"
      },
      {
        "number": "20",
        "name": "VCC",
        "type": "power_in",
        "description": "Power supply voltage; 4.5V to 5.5V operating range"
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [],
        "pages_sent": 17,
        "cost_usd": 0.107,
        "at": "2026-10-07T08:30:49"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/cd74hct574-q1",
        "pages": 17,
        "sha256": "724bb46750578974",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 20,
        "described": 20,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "cd74hct574qpwrg4q1.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          6.5,
          1.2
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "97339947f3a7196470ec2f1d9f9b92bb2fc2ab66ad53be0cf105192585ef3c9a",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cd74hct574qpwrg4q1-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          6.5,
          1.2
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "1672689544ad306d352401972389ea01a5dc56e927d0a5630cb0f118574d2ce7",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "TSSOP-20",
      "Category": "Logic",
      "Pins": "20"
    }
  },
  "variants": [],
  "sections": [
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    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "cd74hct574qpwrg4q1"
  ],
  "discovery_pitch": "CD74HCT574QPWRG4Q1 (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
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    "cd74hct574qpwrg4q1.kicad_mod",
    "cd74hct574qpwrg4q1.glb",
    "cd74hct574qpwrg4q1.step",
    "cd74hct574qpwrg4q1.lbr",
    "docs/hero.png",
    "docs/cd74hct574qpwrg4q1-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "cd74hct574qpwrg4q1-hero.glb",
    "cd74hct574qpwrg4q1-hero.overlay.json"
  ],
  "visibility": {
    "public": true
  }
}