74VHC164FT

{
  "slug": "74vhc164ft",
  "version": "0.1.0",
  "type": "component",
  "description": "TOSHIBA Shift Registers, TSSOP-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic",
    "74vhc164ft",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "74vhc164ft.kicad_sym",
    "74vhc164ft.kicad_mod",
    "74vhc164ft.glb",
    "74vhc164ft.step",
    "74vhc164ft.lbr",
    "docs/hero.png",
    "docs/74vhc164ft-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "74vhc164ft-hero.glb",
    "74vhc164ft-hero.overlay.json",
    "74vhc164ft-etched.glb"
  ],
  "component": {
    "mpn": "74VHC164FT",
    "manufacturer": "TOSHIBA",
    "package": "TSSOP-14",
    "pin_count": 14,
    "category": "Logic",
    "subcategory": "Shift Registers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603180860204204032",
    "parts": {
      "symbol": "74vhc164ft.kicad_sym",
      "footprint": "74vhc164ft.kicad_mod",
      "model_3d": "74vhc164ft-hero.glb",
      "model_3d_plain": "74vhc164ft-etched.glb",
      "model_3d_step": "74vhc164ft-etched.step",
      "model_3d_step_plain": "74vhc164ft.step",
      "lbr": "74vhc164ft.lbr"
    },
    "distributor_links": {
      "lcsc": "C5916341"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T20:11:17Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "A",
        "type": "input",
        "description": "Serial data input A, ANDed with B so one may be used as a data enable; inputs accept 0 to 5.5 V regardless of supply."
      },
      {
        "number": "2",
        "name": "B",
        "type": "input",
        "description": "Serial data input B, ANDed with A so one may be used as a data enable; inputs accept 0 to 5.5 V regardless of supply."
      },
      {
        "number": "3",
        "name": "QA",
        "type": "output",
        "description": "Parallel data output A (first stage of the 8-bit shift register)."
      },
      {
        "number": "4",
        "name": "QB",
        "type": "output",
        "description": "Parallel data output B of the shift register."
      },
      {
        "number": "5",
        "name": "QC",
        "type": "output",
        "description": "Parallel data output C of the shift register."
      },
      {
        "number": "6",
        "name": "QD",
        "type": "output",
        "description": "Parallel data output D of the shift register."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin (0 V)."
      },
      {
        "number": "8",
        "name": "CK",
        "type": "input",
        "description": "Clock input; data shifts on the positive edge of CK."
      },
      {
        "number": "9",
        "name": "CLR",
        "type": "input",
        "description": "Active-low overriding clear input that resets the register outputs."
      },
      {
        "number": "10",
        "name": "QE",
        "type": "output",
        "description": "Parallel data output E of the shift register."
      },
      {
        "number": "11",
        "name": "QF",
        "type": "output",
        "description": "Parallel data output F of the shift register."
      },
      {
        "number": "12",
        "name": "QG",
        "type": "output",
        "description": "Parallel data output G of the shift register."
      },
      {
        "number": "13",
        "name": "QH",
        "type": "output",
        "description": "Parallel data output H (last stage of the shift register)."
      },
      {
        "number": "14",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage, operating range 2.0 to 5.5 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": [
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 10,
        "cost_usd": 0.3211,
        "at": "2026-10-18T20:08:49"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603180860204204032",
        "pages": 10,
        "sha256": "f1e157b3a6a5f18b",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 14,
        "described": 14,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "file": "74vhc164ft.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5.0,
          1.0
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "3ee5786aae56190997aa793ba3cfc003fd616782770e29719b4562f012982245",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "74vhc164ft-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5.0,
          1.0
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "df22d6db6b33efe918bd6ed4b95f82c3ab2abf5b91fae02e71943922d34fda8f",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}