CT1642-TD

{
  "slug": "ct1642-td",
  "version": "0.1.0",
  "type": "component",
  "description": "TDSEMIC LED Drivers, DIP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "led drivers",
    "ct1642-td",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ct1642-td.kicad_sym",
    "ct1642-td.kicad_mod",
    "ct1642-td.glb",
    "ct1642-td.step",
    "ct1642-td.lbr",
    "docs/hero.png",
    "docs/ct1642-td-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ct1642-td-hero.glb",
    "ct1642-td-hero.overlay.json",
    "ct1642-td-etched.glb"
  ],
  "component": {
    "mpn": "CT1642-TD",
    "manufacturer": "TDSEMIC",
    "package": "DIP-16",
    "pin_count": 16,
    "category": "LED Drivers",
    "subcategory": "LED Drivers",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/f84c084fba1a2152f8d5c9c221ef5309.pdf",
    "parts": {
      "symbol": "ct1642-td.kicad_sym",
      "footprint": "ct1642-td.kicad_mod",
      "model_3d": "ct1642-td-hero.glb",
      "model_3d_plain": "ct1642-td-etched.glb",
      "model_3d_step": "ct1642-td-etched.step",
      "model_3d_step_plain": "ct1642-td.step",
      "lbr": "ct1642-td.lbr"
    },
    "distributor_links": {
      "lcsc": "C42421862"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T16:15:42Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Q0",
        "type": "output",
        "description": "Segment output Q0, P-ch open drain for LED anode, constant output current 20mA, built-in 50K pull-down resistor."
      },
      {
        "number": "2",
        "name": "Q1",
        "type": "output",
        "description": "Segment output Q1, P-ch open drain for LED anode, constant output current 20mA, built-in 50K pull-down resistor."
      },
      {
        "number": "3",
        "name": "Q2",
        "type": "output",
        "description": "Segment output Q2, P-ch open drain for LED anode, constant output current 20mA, built-in 50K pull-down resistor."
      },
      {
        "number": "4",
        "name": "Q3",
        "type": "output",
        "description": "Segment output Q3, P-ch open drain for LED anode, constant output current 20mA, built-in 50K pull-down resistor."
      },
      {
        "number": "5",
        "name": "Q4",
        "type": "output",
        "description": "Segment output Q4, P-ch open drain for LED anode, constant output current 20mA, built-in 50K pull-down resistor."
      },
      {
        "number": "6",
        "name": "Q5",
        "type": "output",
        "description": "Segment output Q5, P-ch open drain for LED anode, constant output current 20mA, built-in 50K pull-down resistor."
      },
      {
        "number": "7",
        "name": "Q6",
        "type": "output",
        "description": "Segment output Q6, P-ch open drain for LED anode, constant output current 20mA, built-in 50K pull-down resistor."
      },
      {
        "number": "8",
        "name": "Q7",
        "type": "output",
        "description": "Segment output Q7, P-ch open drain for LED anode, constant output current 20mA, built-in 50K pull-down resistor."
      },
      {
        "number": "9",
        "name": "C1",
        "type": "output",
        "description": "Digit output C1, N-ch open drain for LED cathode, maximum current 200mA, built-in 50K pull-up resistor."
      },
      {
        "number": "10",
        "name": "C2",
        "type": "output",
        "description": "Digit output C2, N-ch open drain for LED cathode, maximum current 200mA, built-in 50K pull-up resistor."
      },
      {
        "number": "11",
        "name": "C3",
        "type": "output",
        "description": "Digit output C3, N-ch open drain for LED cathode, maximum current 200mA, built-in 50K pull-up resistor."
      },
      {
        "number": "12",
        "name": "C4",
        "type": "output",
        "description": "Digit output C4, N-ch open drain for LED cathode, maximum current 200mA, built-in 50K pull-up resistor."
      },
      {
        "number": "13",
        "name": "CLK",
        "type": "input",
        "description": "Clock input, data is written on the rising edge, built-in 10K pull-up resistor."
      },
      {
        "number": "14",
        "name": "DATA",
        "type": "input",
        "description": "Serial data input, stored in the IC register after writing, built-in 10K pull-up resistor."
      },
      {
        "number": "15",
        "name": "VDD",
        "type": "power_in",
        "description": "Logic power supply, 3V min, 3.3V typ, 5V max (absolute maximum -0.5 to +4.6V)."
      },
      {
        "number": "16",
        "name": "GND",
        "type": "power_in",
        "description": "Logic ground."
      }
    ],
    "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: Datasheet covers CT1642 in both SOP and DIP16 with one pin diagram; no ordering table maps the suffi",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 11,
        "cost_usd": 0.347,
        "at": "2026-10-17T16:13:36"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/f84c084fba1a2152f8d5c9c221ef5309.pdf",
        "pages": 11,
        "sha256": "d7dbdd7e33c8fe81",
        "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": "ct1642-td.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          7.874,
          19.177,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "17a30b1f0ab3fd5384a1231e3c63c394888d5b952c542a8c189e023ed3467464",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ct1642-td-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          7.874,
          19.177,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "503f0e97755cf964894a1290c9b119cdadcdf4a089b59a60f9c9703d3d65a0d6",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}