SN74LS573N

{
  "slug": "sn74ls573n",
  "version": "0.1.0",
  "type": "component",
  "description": "XBLW Latches, DIP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic",
    "sn74ls573n",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sn74ls573n.kicad_sym",
    "sn74ls573n.kicad_mod",
    "sn74ls573n.glb",
    "sn74ls573n.step",
    "sn74ls573n.lbr",
    "docs/hero.png",
    "docs/sn74ls573n-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sn74ls573n-hero.glb",
    "sn74ls573n-hero.overlay.json",
    "sn74ls573n-etched.glb"
  ],
  "component": {
    "mpn": "SN74LS573N",
    "manufacturer": "XBLW",
    "package": "DIP-20",
    "pin_count": 20,
    "category": "Logic",
    "subcategory": "Latches",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/56a7858a200070a0e79af9777902eec1.pdf",
    "parts": {
      "symbol": "sn74ls573n.kicad_sym",
      "footprint": "sn74ls573n.kicad_mod",
      "model_3d": "sn74ls573n-hero.glb",
      "model_3d_plain": "sn74ls573n-etched.glb",
      "model_3d_step": "sn74ls573n-etched.step",
      "model_3d_step_plain": "sn74ls573n.step",
      "lbr": "sn74ls573n.lbr"
    },
    "distributor_links": {
      "lcsc": "C47021209"
    },
    "distributor_check": {
      "checked_at": "2026-10-14T22:47:28Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "OE",
        "type": "input",
        "description": "3-state output enable input (active LOW); a HIGH forces Q0 to Q7 into the high-impedance OFF-state without changing the latch contents."
      },
      {
        "number": "2",
        "name": "D0",
        "type": "input",
        "description": "Data input to latch 0; inputs include clamp diodes so current-limiting resistors can interface them to voltages above VCC."
      },
      {
        "number": "3",
        "name": "D1",
        "type": "input",
        "description": "Data input to latch 1; inputs include clamp diodes so current-limiting resistors can interface them to voltages above VCC."
      },
      {
        "number": "4",
        "name": "D2",
        "type": "input",
        "description": "Data input to latch 2; inputs include clamp diodes so current-limiting resistors can interface them to voltages above VCC."
      },
      {
        "number": "5",
        "name": "D3",
        "type": "input",
        "description": "Data input to latch 3; inputs include clamp diodes so current-limiting resistors can interface them to voltages above VCC."
      },
      {
        "number": "6",
        "name": "D4",
        "type": "input",
        "description": "Data input to latch 4; inputs include clamp diodes so current-limiting resistors can interface them to voltages above VCC."
      },
      {
        "number": "7",
        "name": "D5",
        "type": "input",
        "description": "Data input to latch 5; inputs include clamp diodes so current-limiting resistors can interface them to voltages above VCC."
      },
      {
        "number": "8",
        "name": "D6",
        "type": "input",
        "description": "Data input to latch 6; inputs include clamp diodes so current-limiting resistors can interface them to voltages above VCC."
      },
      {
        "number": "9",
        "name": "D7",
        "type": "input",
        "description": "Data input to latch 7; inputs include clamp diodes so current-limiting resistors can interface them to voltages above VCC."
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Ground (0 V) reference for the device."
      },
      {
        "number": "11",
        "name": "LE",
        "type": "input",
        "description": "Latch enable input (active HIGH); when HIGH the latches are transparent to the D inputs, and when LOW they store the data present at the inputs."
      },
      {
        "number": "12",
        "name": "Q7",
        "type": "tri_state",
        "description": "3-state non-inverting latch output 7, high-impedance when OE is HIGH."
      },
      {
        "number": "13",
        "name": "Q6",
        "type": "tri_state",
        "description": "3-state non-inverting latch output 6, high-impedance when OE is HIGH."
      },
      {
        "number": "14",
        "name": "Q5",
        "type": "tri_state",
        "description": "3-state non-inverting latch output 5, high-impedance when OE is HIGH."
      },
      {
        "number": "15",
        "name": "Q4",
        "type": "tri_state",
        "description": "3-state non-inverting latch output 4, high-impedance when OE is HIGH."
      },
      {
        "number": "16",
        "name": "Q3",
        "type": "tri_state",
        "description": "3-state non-inverting latch output 3, high-impedance when OE is HIGH."
      },
      {
        "number": "17",
        "name": "Q2",
        "type": "tri_state",
        "description": "3-state non-inverting latch output 2, high-impedance when OE is HIGH."
      },
      {
        "number": "18",
        "name": "Q1",
        "type": "tri_state",
        "description": "3-state non-inverting latch output 1, high-impedance when OE is HIGH."
      },
      {
        "number": "19",
        "name": "Q0",
        "type": "tri_state",
        "description": "3-state non-inverting latch output 0, high-impedance when OE is HIGH."
      },
      {
        "number": "20",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage; recommended range 2.0 V to 6.0 V (typ. 5.0 V), absolute maximum 7.0 V."
      }
    ],
    "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: The pin table text in the datasheet extraction is column-jumbled, so the pin-number-to-name mapping ; The datasheet covers DIP-20, SOP-20, TSSOP-20 and SOIC-20-208mil. The MPN SN74LS573N is listed as DI"
        ],
        "pages_sent": 17,
        "cost_usd": 0.0575,
        "at": "2026-10-14T22:47:11"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/56a7858a200070a0e79af9777902eec1.pdf",
        "pages": 17,
        "sha256": "7093208ab66548b3",
        "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": [
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        "file": "sn74ls573n.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": "2026-10-14",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sn74ls573n-etched.step",
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        "up": "Z",
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        "origin": "footprint origin = pad-pattern centre",
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        "zmin_mm": -3.3,
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        "sha256": "0f66347ed116b486ddb9df65efcdd8507409844ab93feb208120443fe0a55009",
        "checked": "2026-10-14",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}