TC74HC573APF

{
  "slug": "tc74hc573apf",
  "version": "0.1.0",
  "type": "component",
  "description": "TOSHIBA Latches, DIP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic ics",
    "tc74hc573apf",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tc74hc573apf.kicad_sym",
    "tc74hc573apf.kicad_mod",
    "tc74hc573apf.glb",
    "tc74hc573apf.step",
    "tc74hc573apf.lbr",
    "docs/hero.png",
    "docs/tc74hc573apf-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tc74hc573apf-hero.glb",
    "tc74hc573apf-hero.overlay.json",
    "tc74hc573apf-etched.glb"
  ],
  "component": {
    "mpn": "TC74HC573APF",
    "manufacturer": "TOSHIBA",
    "package": "DIP-20",
    "pin_count": 20,
    "category": "Logic ICs",
    "subcategory": "Latches",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/86b807995c8e4291ddff72e1d931fd92.pdf",
    "parts": {
      "symbol": "tc74hc573apf.kicad_sym",
      "footprint": "tc74hc573apf.kicad_mod",
      "model_3d": "tc74hc573apf-hero.glb",
      "model_3d_plain": "tc74hc573apf-etched.glb",
      "model_3d_step": "tc74hc573apf-etched.step",
      "model_3d_step_plain": "tc74hc573apf.step",
      "lbr": "tc74hc573apf.lbr"
    },
    "distributor_links": {
      "lcsc": "C1547828"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T07:16:34Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "OE",
        "type": "input",
        "description": "Active-low output enable input; when high the eight Q outputs are in a high-impedance state."
      },
      {
        "number": "2",
        "name": "D0",
        "type": "input",
        "description": "Data input 0 to the D-type latch; unused inputs must be tied to VCC or GND."
      },
      {
        "number": "3",
        "name": "D1",
        "type": "input",
        "description": "Data input 1 to the D-type latch; unused inputs must be tied to VCC or GND."
      },
      {
        "number": "4",
        "name": "D2",
        "type": "input",
        "description": "Data input 2 to the D-type latch; unused inputs must be tied to VCC or GND."
      },
      {
        "number": "5",
        "name": "D3",
        "type": "input",
        "description": "Data input 3 to the D-type latch; unused inputs must be tied to VCC or GND."
      },
      {
        "number": "6",
        "name": "D4",
        "type": "input",
        "description": "Data input 4 to the D-type latch; unused inputs must be tied to VCC or GND."
      },
      {
        "number": "7",
        "name": "D5",
        "type": "input",
        "description": "Data input 5 to the D-type latch; unused inputs must be tied to VCC or GND."
      },
      {
        "number": "8",
        "name": "D6",
        "type": "input",
        "description": "Data input 6 to the D-type latch; unused inputs must be tied to VCC or GND."
      },
      {
        "number": "9",
        "name": "D7",
        "type": "input",
        "description": "Data input 7 to the D-type latch; unused inputs must be tied to VCC or GND."
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Ground (0 V) supply pin."
      },
      {
        "number": "11",
        "name": "LE",
        "type": "input",
        "description": "Latch enable input; Q follows D while high and outputs are latched when LE goes low."
      },
      {
        "number": "12",
        "name": "Q7",
        "type": "tri_state",
        "description": "3-state latch output 7 with |IOH| = IOL = 6 mA (min) drive at VCC = 4.5 V; high-impedance when OE is high."
      },
      {
        "number": "13",
        "name": "Q6",
        "type": "tri_state",
        "description": "3-state latch output 6 with |IOH| = IOL = 6 mA (min) drive at VCC = 4.5 V; high-impedance when OE is high."
      },
      {
        "number": "14",
        "name": "Q5",
        "type": "tri_state",
        "description": "3-state latch output 5 with |IOH| = IOL = 6 mA (min) drive at VCC = 4.5 V; high-impedance when OE is high."
      },
      {
        "number": "15",
        "name": "Q4",
        "type": "tri_state",
        "description": "3-state latch output 4 with |IOH| = IOL = 6 mA (min) drive at VCC = 4.5 V; high-impedance when OE is high."
      },
      {
        "number": "16",
        "name": "Q3",
        "type": "tri_state",
        "description": "3-state latch output 3 with |IOH| = IOL = 6 mA (min) drive at VCC = 4.5 V; high-impedance when OE is high."
      },
      {
        "number": "17",
        "name": "Q2",
        "type": "tri_state",
        "description": "3-state latch output 2 with |IOH| = IOL = 6 mA (min) drive at VCC = 4.5 V; high-impedance when OE is high."
      },
      {
        "number": "18",
        "name": "Q1",
        "type": "tri_state",
        "description": "3-state latch output 1 with |IOH| = IOL = 6 mA (min) drive at VCC = 4.5 V; high-impedance when OE is high."
      },
      {
        "number": "19",
        "name": "Q0",
        "type": "tri_state",
        "description": "3-state latch output 0 with |IOH| = IOL = 6 mA (min) drive at VCC = 4.5 V; high-impedance when OE is high."
      },
      {
        "number": "20",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply pin; operating range 2 to 6 V, absolute maximum -0.5 to 7 V."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text+vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: MPN suffix 'PF' is ambiguous: datasheet lists TC74HC573AP (DIP20-P-300-2.54A) and TC74HC573AF (SOP20",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 8,
        "cost_usd": 0.3019,
        "at": "2026-10-27T07:16:11"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/86b807995c8e4291ddff72e1d931fd92.pdf",
        "pages": 8,
        "sha256": "2996660ac57d2e77",
        "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": "tc74hc573apf.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          7.874,
          26.162,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "ca359c9b9e0ce94efcb6c96866513f659eef6517d629ace3c4a0a779f6fd57bb",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tc74hc573apf-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          7.874,
          26.162,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "5437f64b9d69dc580b8f60e09eb8c68bcac57c220bd0122bf40b151c5487e55f",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}