TC74VHC595F

{
  "slug": "tc74vhc595f",
  "version": "0.1.0",
  "type": "component",
  "description": "TOSHIBA Shift Registers, SOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic",
    "tc74vhc595f",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tc74vhc595f.kicad_sym",
    "tc74vhc595f.kicad_mod",
    "tc74vhc595f.glb",
    "tc74vhc595f.step",
    "tc74vhc595f.lbr",
    "docs/hero.png",
    "docs/tc74vhc595f-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tc74vhc595f-hero.glb",
    "tc74vhc595f-hero.overlay.json",
    "tc74vhc595f-etched.glb"
  ],
  "component": {
    "mpn": "TC74VHC595F",
    "manufacturer": "TOSHIBA",
    "package": "SOP-16",
    "pin_count": 16,
    "category": "Logic",
    "subcategory": "Shift Registers",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/b2e552927dafe729ae02119bc1f687b8.pdf",
    "parts": {
      "symbol": "tc74vhc595f.kicad_sym",
      "footprint": "tc74vhc595f.kicad_mod",
      "model_3d": "tc74vhc595f-hero.glb",
      "model_3d_plain": "tc74vhc595f-etched.glb",
      "model_3d_step": "tc74vhc595f-etched.step",
      "model_3d_step_plain": "tc74vhc595f.step",
      "lbr": "tc74vhc595f.lbr"
    },
    "distributor_links": {
      "lcsc": "C5348959"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T00:44:58Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "QB",
        "type": "tri_state",
        "description": "3-state parallel output B of the storage register, enabled when G is low."
      },
      {
        "number": "2",
        "name": "QC",
        "type": "tri_state",
        "description": "3-state parallel output C of the storage register, enabled when G is low."
      },
      {
        "number": "3",
        "name": "QD",
        "type": "tri_state",
        "description": "3-state parallel output D of the storage register, enabled when G is low."
      },
      {
        "number": "4",
        "name": "QE",
        "type": "tri_state",
        "description": "3-state parallel output E of the storage register, enabled when G is low."
      },
      {
        "number": "5",
        "name": "QF",
        "type": "tri_state",
        "description": "3-state parallel output F of the storage register, enabled when G is low."
      },
      {
        "number": "6",
        "name": "QG",
        "type": "tri_state",
        "description": "3-state parallel output G of the storage register, enabled when G is low."
      },
      {
        "number": "7",
        "name": "QH",
        "type": "tri_state",
        "description": "3-state parallel output H of the storage register, enabled when G is low."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin (0 V reference)."
      },
      {
        "number": "9",
        "name": "QH'",
        "type": "output",
        "description": "Serial data output from the last shift register stage, not 3-state, for cascading devices."
      },
      {
        "number": "10",
        "name": "SCLR",
        "type": "input",
        "description": "Active-low asynchronous shift register clear; a low level clears the shift register; input range 0 to 5.5 V."
      },
      {
        "number": "11",
        "name": "SCK",
        "type": "input",
        "description": "Shift register clock; data shifts on the positive-going transition; input range 0 to 5.5 V."
      },
      {
        "number": "12",
        "name": "RCK",
        "type": "input",
        "description": "Storage register clock; shift register data is loaded into the storage register on the positive-going transition; input range 0 to 5.5 V."
      },
      {
        "number": "13",
        "name": "G",
        "type": "input",
        "description": "Output enable; high disables (3-state) QA thru QH outputs, low enables them; input range 0 to 5.5 V."
      },
      {
        "number": "14",
        "name": "SI",
        "type": "input",
        "description": "Serial data input to the first shift register stage; input range 0 to 5.5 V."
      },
      {
        "number": "15",
        "name": "QA",
        "type": "tri_state",
        "description": "3-state parallel output A of the storage register, enabled when G is low."
      },
      {
        "number": "16",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive 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",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Overbars were lost in text extraction. Active-low names for SCLR (pin 10) and G (pin 13) were inferr; The pin assignment figure was extracted as scattered text. Pin positions were cross-checked against ",
          "1/16 pin names appear NOWHERE in the datasheet text: [\"9:QH'@p3\"]"
        ],
        "pages_sent": 10,
        "cost_usd": 0.0821,
        "at": "2026-10-27T00:44:25"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/b2e552927dafe729ae02119bc1f687b8.pdf",
        "pages": 10,
        "sha256": "a4b99fdb5df49bae",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "file": "tc74vhc595f.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          9.9,
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        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
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        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
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        "extents_mm": [
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        "zmin_mm": -0.0,
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        "sha256": "b8234332398e50ee725ebdd45f93473298d36a9c0c2d7fb8d3b82408f6043741",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}