MM74HC573MTC

{
  "slug": "mm74hc573mtc",
  "version": "0.1.0",
  "type": "component",
  "description": "onsemi Latches, TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic ics",
    "mm74hc573mtc",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "mm74hc573mtc.kicad_sym",
    "mm74hc573mtc.kicad_mod",
    "mm74hc573mtc.glb",
    "mm74hc573mtc.step",
    "mm74hc573mtc.lbr",
    "docs/hero.png",
    "docs/mm74hc573mtc-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "mm74hc573mtc-hero.glb",
    "mm74hc573mtc-hero.overlay.json",
    "mm74hc573mtc-etched.glb"
  ],
  "component": {
    "mpn": "MM74HC573MTC",
    "manufacturer": "onsemi",
    "package": "TSSOP-20",
    "pin_count": 20,
    "category": "Logic ICs",
    "subcategory": "Latches",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588929472040456192",
    "parts": {
      "symbol": "mm74hc573mtc.kicad_sym",
      "footprint": "mm74hc573mtc.kicad_mod",
      "model_3d": "mm74hc573mtc-hero.glb",
      "model_3d_plain": "mm74hc573mtc-etched.glb",
      "model_3d_step": "mm74hc573mtc-etched.step",
      "model_3d_step_plain": "mm74hc573mtc.step",
      "lbr": "mm74hc573mtc.lbr"
    },
    "distributor_links": {
      "lcsc": "C897487",
      "digikey": "2156-MM74HC573MTC-ND",
      "mouser": "512-MM74HC573MTC"
    },
    "distributor_check": {
      "checked_at": "2026-10-20T20:49:36Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "2156-MM74HC573MTC-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "512-MM74HC573MTC",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "OC",
        "type": "input",
        "description": "Output Control input; a HIGH level puts all outputs in the high-impedance state regardless of other inputs and stored data."
      },
      {
        "number": "2",
        "name": "1D",
        "type": "input",
        "description": "Data input 1 of the octal D-type latch; Q follows D while Latch Enable is HIGH."
      },
      {
        "number": "3",
        "name": "2D",
        "type": "input",
        "description": "Data input 2 of the octal D-type latch; Q follows D while Latch Enable is HIGH."
      },
      {
        "number": "4",
        "name": "3D",
        "type": "input",
        "description": "Data input 3 of the octal D-type latch; Q follows D while Latch Enable is HIGH."
      },
      {
        "number": "5",
        "name": "4D",
        "type": "input",
        "description": "Data input 4 of the octal D-type latch; Q follows D while Latch Enable is HIGH."
      },
      {
        "number": "6",
        "name": "5D",
        "type": "input",
        "description": "Data input 5 of the octal D-type latch; Q follows D while Latch Enable is HIGH."
      },
      {
        "number": "7",
        "name": "6D",
        "type": "input",
        "description": "Data input 6 of the octal D-type latch; Q follows D while Latch Enable is HIGH."
      },
      {
        "number": "8",
        "name": "7D",
        "type": "input",
        "description": "Data input 7 of the octal D-type latch; Q follows D while Latch Enable is HIGH."
      },
      {
        "number": "9",
        "name": "8D",
        "type": "input",
        "description": "Data input 8 of the octal D-type latch; Q follows D while Latch Enable is HIGH."
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Ground, 0 V reference for all voltages."
      },
      {
        "number": "11",
        "name": "LE",
        "type": "input",
        "description": "Latch Enable input; HIGH makes Q outputs follow D, LOW latches and retains the data."
      },
      {
        "number": "12",
        "name": "8Q",
        "type": "tri_state",
        "description": "3-STATE latch output 8, driving up to 15 LS-TTL loads; high impedance when OC is HIGH."
      },
      {
        "number": "13",
        "name": "7Q",
        "type": "tri_state",
        "description": "3-STATE latch output 7, driving up to 15 LS-TTL loads; high impedance when OC is HIGH."
      },
      {
        "number": "14",
        "name": "6Q",
        "type": "tri_state",
        "description": "3-STATE latch output 6, driving up to 15 LS-TTL loads; high impedance when OC is HIGH."
      },
      {
        "number": "15",
        "name": "5Q",
        "type": "tri_state",
        "description": "3-STATE latch output 5, driving up to 15 LS-TTL loads; high impedance when OC is HIGH."
      },
      {
        "number": "16",
        "name": "4Q",
        "type": "tri_state",
        "description": "3-STATE latch output 4, driving up to 15 LS-TTL loads; high impedance when OC is HIGH."
      },
      {
        "number": "17",
        "name": "3Q",
        "type": "tri_state",
        "description": "3-STATE latch output 3, driving up to 15 LS-TTL loads; high impedance when OC is HIGH."
      },
      {
        "number": "18",
        "name": "2Q",
        "type": "tri_state",
        "description": "3-STATE latch output 2, driving up to 15 LS-TTL loads; high impedance when OC is HIGH."
      },
      {
        "number": "19",
        "name": "1Q",
        "type": "tri_state",
        "description": "3-STATE latch output 1, driving up to 15 LS-TTL loads; high impedance when OC is HIGH."
      },
      {
        "number": "20",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage, recommended 2 to 6 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-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: The connection diagram is a single top view shared by all 20-lead packages (SOIC, SOP, TSSOP, PDIP);",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 10,
        "cost_usd": 0.281,
        "at": "2026-10-20T20:44:29"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588929472040456192",
        "pages": 10,
        "sha256": "dc033c439dc40dc5",
        "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"
    },
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        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "97339947f3a7196470ec2f1d9f9b92bb2fc2ab66ad53be0cf105192585ef3c9a",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "mm74hc573mtc-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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        "zmin_mm": -0.0,
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        "sha256": "16f1ab0b9ea2db78a4879bf8e29629eeae96d0b01c5e8241daf872ca8e1cccaa",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}