SN74ACT573NSR

{
  "schema_version": 1,
  "type": "component",
  "slug": "sn74act573nsr",
  "title": "SN74ACT573NSR",
  "brief": "Texas Instruments Latches, SOP-20-208mil. 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",
    "sn74act573nsr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "SN74ACT573NSR",
    "manufacturer": "Texas Instruments",
    "package": "SOP-20-208mil",
    "pin_count": 20,
    "category": "Logic",
    "subcategory": "Latches",
    "datasheet": "https://www.ti.com/cn/lit/gpn/sn74act573",
    "parts": {
      "symbol": "sn74act573nsr.kicad_sym",
      "footprint": "sn74act573nsr.kicad_mod",
      "model_3d": "sn74act573nsr-hero.glb",
      "model_3d_plain": "sn74act573nsr.glb",
      "model_3d_step": "sn74act573nsr-etched.step",
      "model_3d_step_plain": "sn74act573nsr.step",
      "lbr": "sn74act573nsr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2675303",
      "digikey": "296-28650-2-ND",
      "mouser": "595-SN74ACT573NSR"
    },
    "distributor_check": {
      "checked_at": "2026-10-09T04:49:58Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-28650-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-SN74ACT573NSR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "OE",
        "type": "input",
        "description": "Buffered output enable: when OE is high all eight outputs go to high impedance, and OE should be tied to VCC through a pull-up resistor (minimum value set by the driver's current sink capability) to keep outputs in high-Z during power-up or power-down."
      },
      {
        "number": "2",
        "name": "1D",
        "type": "input",
        "description": "Data input to latch 1, which is passed to output 1Q while LE is high and held when LE goes low."
      },
      {
        "number": "3",
        "name": "2D",
        "type": "input",
        "description": "Data input to latch 2, which is passed to output 2Q while LE is high and held when LE goes low."
      },
      {
        "number": "4",
        "name": "3D",
        "type": "input",
        "description": "Data input to latch 3, which is passed to output 3Q while LE is high and held when LE goes low."
      },
      {
        "number": "5",
        "name": "4D",
        "type": "input",
        "description": "Data input to latch 4, which is passed to output 4Q while LE is high and held when LE goes low."
      },
      {
        "number": "6",
        "name": "5D",
        "type": "input",
        "description": "Data input to latch 5, which is passed to output 5Q while LE is high and held when LE goes low."
      },
      {
        "number": "7",
        "name": "6D",
        "type": "input",
        "description": "Data input to latch 6, which is passed to output 6Q while LE is high and held when LE goes low."
      },
      {
        "number": "8",
        "name": "7D",
        "type": "input",
        "description": "Data input to latch 7, which is passed to output 7Q while LE is high and held when LE goes low."
      },
      {
        "number": "9",
        "name": "8D",
        "type": "input",
        "description": "Data input to latch 8, which is passed to output 8Q while LE is high and held when LE goes low."
      },
      {
        "number": "10",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin."
      },
      {
        "number": "11",
        "name": "LE",
        "type": "input",
        "description": "Latch enable: when high the Q outputs follow the D inputs, and when low the Q outputs latch the logic levels present at D."
      },
      {
        "number": "12",
        "name": "8Q",
        "type": "tri_state",
        "description": "Three-state output of latch 8, which holds the latched level and goes to high impedance when OE is high."
      },
      {
        "number": "13",
        "name": "7Q",
        "type": "tri_state",
        "description": "Three-state output of latch 7, which holds the latched level and goes to high impedance when OE is high."
      },
      {
        "number": "14",
        "name": "6Q",
        "type": "tri_state",
        "description": "Three-state output of latch 6, which holds the latched level and goes to high impedance when OE is high."
      },
      {
        "number": "15",
        "name": "5Q",
        "type": "tri_state",
        "description": "Three-state output of latch 5, which holds the latched level and goes to high impedance when OE is high."
      },
      {
        "number": "16",
        "name": "4Q",
        "type": "tri_state",
        "description": "Three-state output of latch 4, which holds the latched level and goes to high impedance when OE is high."
      },
      {
        "number": "17",
        "name": "3Q",
        "type": "tri_state",
        "description": "Three-state output of latch 3, which holds the latched level and goes to high impedance when OE is high."
      },
      {
        "number": "18",
        "name": "2Q",
        "type": "tri_state",
        "description": "Three-state output of latch 2, which holds the latched level and goes to high impedance when OE is high."
      },
      {
        "number": "19",
        "name": "1Q",
        "type": "tri_state",
        "description": "Three-state output of latch 1, which holds the latched level and goes to high impedance when OE is high."
      },
      {
        "number": "20",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply, specified for 4.5 V to 5.5 V; the datasheet recommends a 0.1 µF bypass capacitor placed as close to the pin as possible."
      }
    ],
    "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 208 mil body width is not stated anywhere in the datasheet text. The NS (SOP, 20) package is lis; Pin assignments come from Figure 4-1 and Table 4-1, which state they apply to the DB, DW, N, NS or P; Page 12 of the package addendum lists SN74ACT573NSR with status NRND (not recommended for new design"
        ],
        "pages_sent": 36,
        "cost_usd": 0.0956,
        "at": "2026-10-09T04:49:36"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/sn74act573",
        "pages": 36,
        "sha256": "fe3ab052ad4010d5",
        "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": "sn74act573nsr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          10.26,
          12.8,
          2.65
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "cc1e8c924df7969072d7d159e458b36175d9f831a8bec58c4d993b7fdeecf103",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sn74act573nsr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          10.26,
          12.8,
          2.65
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "a00487329d765be384539a407ee3827abd8770e53b82636ed994d42ddc255ce9",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOP-20-208mil",
      "Category": "Logic",
      "Pins": "20"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "sn74act573nsr"
  ],
  "discovery_pitch": "SN74ACT573NSR (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": [
    "page.json",
    "README.md",
    "sn74act573nsr.kicad_sym",
    "sn74act573nsr.kicad_mod",
    "sn74act573nsr.glb",
    "sn74act573nsr.step",
    "sn74act573nsr.lbr",
    "docs/hero.png",
    "docs/sn74act573nsr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sn74act573nsr-hero.glb",
    "sn74act573nsr-hero.overlay.json"
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  "visibility": {
    "public": true
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}