SN74LV574APWR

{
  "schema_version": 1,
  "type": "component",
  "slug": "sn74lv574apwr",
  "title": "SN74LV574APWR",
  "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",
    "sn74lv574apwr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "SN74LV574APWR",
    "manufacturer": "Texas Instruments",
    "package": "TSSOP-20",
    "pin_count": 20,
    "category": "Logic",
    "subcategory": "Flip Flops",
    "datasheet": "https://www.ti.com/lit/ds/symlink/sn74lv574a.pdf",
    "parts": {
      "symbol": "sn74lv574apwr.kicad_sym",
      "footprint": "sn74lv574apwr.kicad_mod",
      "model_3d": "sn74lv574apwr-hero.glb",
      "model_3d_plain": "sn74lv574apwr.glb",
      "model_3d_step": "sn74lv574apwr-etched.step",
      "model_3d_step_plain": "sn74lv574apwr.step",
      "lbr": "sn74lv574apwr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2677714",
      "digikey": "296-12285-2-ND",
      "mouser": "595-SN74LV574APWR"
    },
    "distributor_check": {
      "checked_at": "2026-10-11T00:00:30Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-12285-2-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-SN74LV574APWR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "OE",
        "type": "input",
        "description": "Active-low control pin that the pin table describes as 'Clear all channels, active low'."
      },
      {
        "number": "2",
        "name": "1D",
        "type": "input",
        "description": "Channel 1 data input, sampled into its flip-flop on the positive transition of CLK."
      },
      {
        "number": "3",
        "name": "2D",
        "type": "input",
        "description": "Channel 2 data input, sampled into its flip-flop on the positive transition of CLK."
      },
      {
        "number": "4",
        "name": "3D",
        "type": "input",
        "description": "Channel 3 data input, sampled into its flip-flop on the positive transition of CLK."
      },
      {
        "number": "5",
        "name": "4D",
        "type": "input",
        "description": "Channel 4 data input, sampled into its flip-flop on the positive transition of CLK."
      },
      {
        "number": "6",
        "name": "5D",
        "type": "input",
        "description": "Channel 5 data input, sampled into its flip-flop on the positive transition of CLK."
      },
      {
        "number": "7",
        "name": "6D",
        "type": "input",
        "description": "Channel 6 data input, sampled into its flip-flop on the positive transition of CLK."
      },
      {
        "number": "8",
        "name": "7D",
        "type": "input",
        "description": "Channel 7 data input, sampled into its flip-flop on the positive transition of CLK."
      },
      {
        "number": "9",
        "name": "8D",
        "type": "input",
        "description": "Channel 8 data input, sampled into its flip-flop on the positive transition of CLK."
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin."
      },
      {
        "number": "11",
        "name": "CLK",
        "type": "input",
        "description": "Clock input; the Q outputs take the logic levels present on the D inputs on its positive transition."
      },
      {
        "number": "12",
        "name": "8Q",
        "type": "tri_state",
        "description": "Channel 8 3-state output, designed for driving highly capacitive or relatively low-impedance loads."
      },
      {
        "number": "13",
        "name": "7Q",
        "type": "tri_state",
        "description": "Channel 7 3-state output, designed for driving highly capacitive or relatively low-impedance loads."
      },
      {
        "number": "14",
        "name": "6Q",
        "type": "tri_state",
        "description": "Channel 6 3-state output, designed for driving highly capacitive or relatively low-impedance loads."
      },
      {
        "number": "15",
        "name": "5Q",
        "type": "tri_state",
        "description": "Channel 5 3-state output, designed for driving highly capacitive or relatively low-impedance loads."
      },
      {
        "number": "16",
        "name": "4Q",
        "type": "tri_state",
        "description": "Channel 4 3-state output, designed for driving highly capacitive or relatively low-impedance loads."
      },
      {
        "number": "17",
        "name": "3Q",
        "type": "tri_state",
        "description": "Channel 3 3-state output, designed for driving highly capacitive or relatively low-impedance loads."
      },
      {
        "number": "18",
        "name": "2Q",
        "type": "tri_state",
        "description": "Channel 2 3-state output, designed for driving highly capacitive or relatively low-impedance loads."
      },
      {
        "number": "19",
        "name": "1Q",
        "type": "tri_state",
        "description": "Channel 1 3-state output, designed for driving highly capacitive or relatively low-impedance loads."
      },
      {
        "number": "20",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply pin; the device operates from 2 V to 5.5 V VCC."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin 1 is named OE and typed as an input, but its description reads 'Clear all channels, active low'.; The pin table types these outputs as 'O'. The datasheet describes them as 3-state outputs, so they a; The Package Information table lists PW as 'TSSOP, 16', but the pin table (20 pins, numbered 1 to 20)"
        ],
        "pages_sent": 8,
        "cost_usd": 0.0489,
        "at": "2026-10-11T00:00:14"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/sn74lv574a.pdf",
        "pages": 33,
        "sha256": "ebf402f3f43ded40",
        "source_tier": "mfr"
      },
      "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": "sn74lv574apwr.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": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sn74lv574apwr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          6.5,
          1.2
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "ac0d379df654a3f814056d74bb0dbee920d070614ca29a0c3bec7b4fb5744d6f",
        "checked": "2026-10-19",
        "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": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
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  ],
  "discovery_triggers": [
    "sn74lv574apwr"
  ],
  "discovery_pitch": "SN74LV574APWR (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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    "sn74lv574apwr.glb",
    "sn74lv574apwr.step",
    "sn74lv574apwr.lbr",
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    "docs/sn74lv574apwr-datasheet.pdf",
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    "viewers/footprint.html",
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  "visibility": {
    "public": true
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}