MC74LV594ADTR2G

{
  "slug": "mc74lv594adtr2g",
  "version": "0.1.0",
  "type": "component",
  "description": "onsemi Shift Registers, TSSOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic",
    "mc74lv594adtr2g",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "mc74lv594adtr2g.kicad_sym",
    "mc74lv594adtr2g.kicad_mod",
    "mc74lv594adtr2g.glb",
    "mc74lv594adtr2g.step",
    "mc74lv594adtr2g.lbr",
    "docs/hero.png",
    "docs/mc74lv594adtr2g-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "mc74lv594adtr2g-hero.glb",
    "mc74lv594adtr2g-hero.overlay.json",
    "mc74lv594adtr2g-etched.glb"
  ],
  "component": {
    "mpn": "MC74LV594ADTR2G",
    "manufacturer": "onsemi",
    "package": "TSSOP-16",
    "pin_count": 16,
    "category": "Logic",
    "subcategory": "Shift Registers",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/5f3deeaf910c9a8f36ee0a2b6bde58ad.pdf",
    "parts": {
      "symbol": "mc74lv594adtr2g.kicad_sym",
      "footprint": "mc74lv594adtr2g.kicad_mod",
      "model_3d": "mc74lv594adtr2g-hero.glb",
      "model_3d_plain": "mc74lv594adtr2g-etched.glb",
      "model_3d_step": "mc74lv594adtr2g-etched.step",
      "model_3d_step_plain": "mc74lv594adtr2g.step",
      "lbr": "mc74lv594adtr2g.lbr"
    },
    "distributor_links": {
      "lcsc": "C904113",
      "mouser": "863-MC74LV594ADTR2G"
    },
    "distributor_check": {
      "checked_at": "2026-10-21T19:19:50Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": "863-MC74LV594ADTR2G",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "QB",
        "type": "output",
        "description": "Parallel storage-register output for bit B."
      },
      {
        "number": "2",
        "name": "QC",
        "type": "output",
        "description": "Parallel storage-register output for bit C."
      },
      {
        "number": "3",
        "name": "QD",
        "type": "output",
        "description": "Parallel storage-register output for bit D."
      },
      {
        "number": "4",
        "name": "QE",
        "type": "output",
        "description": "Parallel storage-register output for bit E."
      },
      {
        "number": "5",
        "name": "QF",
        "type": "output",
        "description": "Parallel storage-register output for bit F."
      },
      {
        "number": "6",
        "name": "QG",
        "type": "output",
        "description": "Parallel storage-register output for bit G."
      },
      {
        "number": "7",
        "name": "QH",
        "type": "output",
        "description": "Parallel storage-register output for bit H."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Ground (0 V) reference."
      },
      {
        "number": "9",
        "name": "QH'",
        "type": "output",
        "description": "Serial output from the last shift-register stage, provided for cascading."
      },
      {
        "number": "10",
        "name": "SRCLR",
        "type": "input",
        "description": "Active-low direct overriding clear for the shift register."
      },
      {
        "number": "11",
        "name": "SRCLK",
        "type": "input",
        "description": "Shift-register clock, positive-edge triggered."
      },
      {
        "number": "12",
        "name": "RCLK",
        "type": "input",
        "description": "Storage-register clock, positive-edge triggered."
      },
      {
        "number": "13",
        "name": "RCLR",
        "type": "input",
        "description": "Active-low direct overriding clear for the storage register."
      },
      {
        "number": "14",
        "name": "SER",
        "type": "input",
        "description": "Serial data input to the shift register."
      },
      {
        "number": "15",
        "name": "QA",
        "type": "output",
        "description": "Parallel storage-register output for bit A."
      },
      {
        "number": "16",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply, 2.0 V to 6.0 V operation."
      }
    ],
    "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": "vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The page 1 pin assignment drawing labels pin 13 as an overbarred RCLR, pin 12 as RCLR, pin 11 as SRC",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 12,
        "cost_usd": 0.3002,
        "at": "2026-10-21T19:12:02"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/5f3deeaf910c9a8f36ee0a2b6bde58ad.pdf",
        "pages": 12,
        "sha256": "5bd47437880451b4",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "mc74lv594adtr2g.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5.0,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "6ad5e98224d02a427d9a6b929a28dbc158b9925fba5adec12db05079f1016948",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "mc74lv594adtr2g-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5.0,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "a177ead22a8ef579012e0a48ac7ce61994a0c058f0d385464d6e46e414beef06",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}