CDCLVD1212RHAT

{
  "slug": "cdclvd1212rhat",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Clock Buffers, Drivers, VQFN-40-EP(6x6). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "rtc-clock chip",
    "cdclvd1212rhat",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "cdclvd1212rhat.kicad_sym",
    "cdclvd1212rhat.kicad_mod",
    "cdclvd1212rhat.glb",
    "cdclvd1212rhat.step",
    "cdclvd1212rhat.lbr",
    "docs/hero.png",
    "docs/cdclvd1212rhat-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "cdclvd1212rhat-hero.glb",
    "cdclvd1212rhat-hero.overlay.json",
    "cdclvd1212rhat-etched.glb"
  ],
  "component": {
    "mpn": "CDCLVD1212RHAT",
    "manufacturer": "Texas Instruments",
    "package": "VQFN-40-EP(6x6)",
    "pin_count": 41,
    "category": "RTC/Clock Chip",
    "subcategory": "Clock Buffers, Drivers",
    "datasheet": "https://www.ti.com/cn/lit/gpn/cdclvd1212",
    "parts": {
      "symbol": "cdclvd1212rhat.kicad_sym",
      "footprint": "cdclvd1212rhat.kicad_mod",
      "model_3d": "cdclvd1212rhat-hero.glb",
      "model_3d_plain": "cdclvd1212rhat-etched.glb",
      "model_3d_step": "cdclvd1212rhat-etched.step",
      "model_3d_step_plain": "cdclvd1212rhat.step",
      "lbr": "cdclvd1212rhat.lbr"
    },
    "distributor_links": {
      "lcsc": "C701730",
      "digikey": "296-28233-2-ND",
      "mouser": "595-CDCLVD1212RHAT"
    },
    "distributor_check": {
      "checked_at": "2026-10-30T18:31:15Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-28233-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-CDCLVD1212RHAT",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "IN_SEL",
        "type": "input",
        "description": "Input selection pin: low selects INP0/INN0, high selects INP1/INN1, and leaving it open disables the outputs (static); it has an internal 200-kΩ pullup and pulldown."
      },
      {
        "number": "2",
        "name": "INP1",
        "type": "input",
        "description": "Positive side of differential redundant input pair 1 (or single-ended input), accepting LVDS, LVPECL, or LVCMOS levels with input frequency up to 800 MHz."
      },
      {
        "number": "3",
        "name": "INN1",
        "type": "input",
        "description": "Negative side of differential redundant input pair 1 (or single-ended input); when driven single-ended, the unused negative input must be biased to VAC_REF."
      },
      {
        "number": "4",
        "name": "VAC_REF1",
        "type": "output",
        "description": "Bias voltage output for capacitive-coupled inputs, 1.25 V typical (1.1 V to 1.35 V at VCC = 2.5 V, Iload = 100 µA); TI recommends a 0.1-µF capacitor to GND if used."
      },
      {
        "number": "5",
        "name": "VCC",
        "type": "power_in",
        "description": "2.5-V device supply, specified from 2.375 V to 2.625 V."
      },
      {
        "number": "6",
        "name": "VCC",
        "type": "power_in",
        "description": "2.5-V device supply, specified from 2.375 V to 2.625 V."
      },
      {
        "number": "7",
        "name": "VAC_REF0",
        "type": "output",
        "description": "Bias voltage output for capacitive-coupled inputs, 1.25 V typical (1.1 V to 1.35 V at VCC = 2.5 V, Iload = 100 µA); TI recommends a 0.1-µF capacitor to GND if used."
      },
      {
        "number": "8",
        "name": "INN0",
        "type": "input",
        "description": "Negative side of differential input pair 0 (or single-ended input); when driven single-ended, the unused negative input must be biased to VAC_REF."
      },
      {
        "number": "9",
        "name": "INP0",
        "type": "input",
        "description": "Positive side of differential input pair 0 (or single-ended input), accepting LVDS, LVPECL, or LVCMOS levels with input frequency up to 800 MHz."
      },
      {
        "number": "10",
        "name": "N.C.",
        "type": "unconnected",
        "description": "No connect; not internally connected."
      },
      {
        "number": "11",
        "name": "VCC",
        "type": "power_in",
        "description": "2.5-V device supply, specified from 2.375 V to 2.625 V."
      },
      {
        "number": "12",
        "name": "OUTP0",
        "type": "output",
        "description": "Positive side of LVDS differential output pair 0, ANSI EIA/TIA-644A compatible; unused outputs may be left open."
      },
      {
        "number": "13",
        "name": "OUTN0",
        "type": "output",
        "description": "Negative side of LVDS differential output pair 0, ANSI EIA/TIA-644A compatible; unused outputs may be left open."
      },
      {
        "number": "14",
        "name": "OUTP1",
        "type": "output",
        "description": "Positive side of LVDS differential output pair 1, ANSI EIA/TIA-644A compatible; unused outputs may be left open."
      },
      {
        "number": "15",
        "name": "OUTN1",
        "type": "output",
        "description": "Negative side of LVDS differential output pair 1, ANSI EIA/TIA-644A compatible; unused outputs may be left open."
      },
      {
        "number": "16",
        "name": "OUTP2",
        "type": "output",
        "description": "Positive side of LVDS differential output pair 2, ANSI EIA/TIA-644A compatible; unused outputs may be left open."
      },
      {
        "number": "17",
        "name": "OUTN2",
        "type": "output",
        "description": "Negative side of LVDS differential output pair 2, ANSI EIA/TIA-644A compatible; unused outputs may be left open."
      },
      {
        "number": "18",
        "name": "OUTP3",
        "type": "output",
        "description": "Positive side of LVDS differential output pair 3, ANSI EIA/TIA-644A compatible; unused outputs may be left open."
      },
      {
        "number": "19",
        "name": "OUTN3",
        "type": "output",
        "description": "Negative side of LVDS differential output pair 3, ANSI EIA/TIA-644A compatible; unused outputs may be left open."
      },
      {
        "number": "20",
        "name": "VCC",
        "type": "power_in",
        "description": "2.5-V device supply, specified from 2.375 V to 2.625 V."
      },
      {
        "number": "21",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground; the thermal pad must also be soldered to ground."
      },
      {
        "number": "22",
        "name": "OUTP4",
        "type": "output",
        "description": "Positive side of LVDS differential output pair 4, ANSI EIA/TIA-644A compatible; unused outputs may be left open."
      },
      {
        "number": "23",
        "name": "OUTN4",
        "type": "output",
        "description": "Negative side of LVDS differential output pair 4, ANSI EIA/TIA-644A compatible; unused outputs may be left open."
      },
      {
        "number": "24",
        "name": "OUTP5",
        "type": "output",
        "description": "Positive side of LVDS differential output pair 5, ANSI EIA/TIA-644A compatible; unused outputs may be left open."
      },
      {
        "number": "25",
        "name": "OUTN5",
        "type": "output",
        "description": "Negative side of LVDS differential output pair 5, ANSI EIA/TIA-644A compatible; unused outputs may be left open."
      },
      {
        "number": "26",
        "name": "OUTP6",
        "type": "output",
        "description": "Positive side of LVDS differential output pair 6, ANSI EIA/TIA-644A compatible; unused outputs may be left open."
      },
      {
        "number": "27",
        "name": "OUTN6",
        "type": "output",
        "description": "Negative side of LVDS differential output pair 6, ANSI EIA/TIA-644A compatible; unused outputs may be left open."
      },
      {
        "number": "28",
        "name": "OUTP7",
        "type": "output",
        "description": "Positive side of LVDS differential output pair 7, ANSI EIA/TIA-644A compatible; unused outputs may be left open."
      },
      {
        "number": "29",
        "name": "OUTN7",
        "type": "output",
        "description": "Negative side of LVDS differential output pair 7, ANSI EIA/TIA-644A compatible; unused outputs may be left open."
      },
      {
        "number": "30",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground; the thermal pad must also be soldered to ground."
      },
      {
        "number": "31",
        "name": "VCC",
        "type": "power_in",
        "description": "2.5-V device supply, specified from 2.375 V to 2.625 V."
      },
      {
        "number": "32",
        "name": "OUTP8",
        "type": "output",
        "description": "Positive side of LVDS differential output pair 8, ANSI EIA/TIA-644A compatible; unused outputs may be left open."
      },
      {
        "number": "33",
        "name": "OUTN8",
        "type": "output",
        "description": "Negative side of LVDS differential output pair 8, ANSI EIA/TIA-644A compatible; unused outputs may be left open."
      },
      {
        "number": "34",
        "name": "OUTP9",
        "type": "output",
        "description": "Positive side of LVDS differential output pair 9, ANSI EIA/TIA-644A compatible; unused outputs may be left open."
      },
      {
        "number": "35",
        "name": "OUTN9",
        "type": "output",
        "description": "Negative side of LVDS differential output pair 9, ANSI EIA/TIA-644A compatible; unused outputs may be left open."
      },
      {
        "number": "36",
        "name": "OUTP10",
        "type": "output",
        "description": "Positive side of LVDS differential output pair 10, ANSI EIA/TIA-644A compatible; unused outputs may be left open."
      },
      {
        "number": "37",
        "name": "OUTN10",
        "type": "output",
        "description": "Negative side of LVDS differential output pair 10, ANSI EIA/TIA-644A compatible; unused outputs may be left open."
      },
      {
        "number": "38",
        "name": "OUTP11",
        "type": "output",
        "description": "Positive side of LVDS differential output pair 11, ANSI EIA/TIA-644A compatible; unused outputs may be left open."
      },
      {
        "number": "39",
        "name": "OUTN11",
        "type": "output",
        "description": "Negative side of LVDS differential output pair 11, ANSI EIA/TIA-644A compatible; unused outputs may be left open."
      },
      {
        "number": "40",
        "name": "VCC",
        "type": "power_in",
        "description": "2.5-V device supply, specified from 2.375 V to 2.625 V."
      },
      {
        "number": "41",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "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 datasheet pin configuration drawing on page 3 has scrambled text, so the pin-to-number mapping w; The exposed thermal pad (labeled 'Thermal Pad (GND)', pin number '—' in the datasheet) is not a numb; The datasheet lists INP0 as pin 9 and INN0 as pin 8 (reversed order relative to the other pairs); re",
          "exposed pad 41 added from the footprint"
        ],
        "pages_sent": 23,
        "cost_usd": 0.1089,
        "at": "2026-10-30T18:30:58"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/cdclvd1212",
        "pages": 23,
        "sha256": "71e1d7c62a5fc622",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 41,
        "described": 41,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "cdclvd1212rhat.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          6.0,
          1.0
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "e5b4286c2329085d9ef7f90d5eb5bf41a435241ecc1baaf1383823b6d6a946ae",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cdclvd1212rhat-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          6.0,
          1.0
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "9e9aa469c652be384f82019280a789e2f58a0e47b4951f61291e5a93128ef407",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "RHA",
      "source_page": 22,
      "D": {
        "nom_mm": 6.0,
        "range_mm": [
          null,
          null
        ]
      },
      "E1": {
        "nom_mm": 6.0,
        "range_mm": [
          null,
          null
        ]
      },
      "e": {
        "nom_mm": 0.5,
        "range_mm": [
          null,
          null
        ]
      },
      "A": {
        "nom_mm": 1.0,
        "range_mm": [
          null,
          1.0
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "cdclvd1212rhat.step",
        "verdict": "PASS",
        "reasons": [
          "height within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  }
}