HEF4046BT

{
  "slug": "hef4046bt",
  "version": "0.1.0",
  "type": "component",
  "description": "Nexperia Clock Generators / Frequency Synthesizers / PLL, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "clock and timing",
    "hef4046bt",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
    "hef4046bt.kicad_sym",
    "hef4046bt.kicad_mod",
    "hef4046bt.glb",
    "hef4046bt.step",
    "hef4046bt.lbr",
    "docs/hero.png",
    "docs/hef4046bt-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "hef4046bt-hero.glb",
    "hef4046bt-hero.overlay.json",
    "hef4046bt-etched.glb"
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  "component": {
    "mpn": "HEF4046BT",
    "manufacturer": "Nexperia",
    "package": "SOIC-16",
    "pin_count": 16,
    "category": "Clock and Timing",
    "subcategory": "Clock Generators / Frequency Synthesizers / PLL",
    "datasheet": "https://assets.nexperia.com/documents/data-sheet/HEF4046BT.pdf",
    "parts": {
      "symbol": "hef4046bt.kicad_sym",
      "footprint": "hef4046bt.kicad_mod",
      "model_3d": "hef4046bt-hero.glb",
      "model_3d_plain": "hef4046bt-etched.glb",
      "model_3d_step": "hef4046bt-etched.step",
      "model_3d_step_plain": "hef4046bt.step",
      "lbr": "hef4046bt.lbr"
    },
    "distributor_links": {
      "lcsc": "C90682"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T03:00:10Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PCP_OUT",
        "type": "output",
        "description": "Phase comparator pulse output, which is HIGH when phase comparator 2 is in its locked (high-impedance OFF) state and can indicate a locked condition."
      },
      {
        "number": "2",
        "name": "PC1_OUT",
        "type": "output",
        "description": "Phase comparator 1 (EXCLUSIVE-OR) output, whose average voltage is 0.5VDD when there is no signal or noise at the signal input."
      },
      {
        "number": "3",
        "name": "COMP_IN",
        "type": "input",
        "description": "Comparator input, connected directly or via a frequency divider to VCO_OUT, with HIGH-level input voltage of 3.5 V min at VDD = 5 V when DC coupled."
      },
      {
        "number": "4",
        "name": "VCO_OUT",
        "type": "output",
        "description": "VCO output with a typical 50% duty factor, connected directly or via a frequency divider to COMP_IN."
      },
      {
        "number": "5",
        "name": "INH",
        "type": "input",
        "description": "Inhibit input where LOW enables the VCO and source follower and HIGH turns both off to minimize standby power consumption."
      },
      {
        "number": "6",
        "name": "C1A",
        "type": "passive",
        "description": "Capacitor C1 connection A, with C1 recommended from 50 pF upward to set the VCO frequency range together with R1."
      },
      {
        "number": "7",
        "name": "C1B",
        "type": "passive",
        "description": "Capacitor C1 connection B, with C1 recommended from 50 pF upward to set the VCO frequency range together with R1."
      },
      {
        "number": "8",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground supply voltage (0 V reference)."
      },
      {
        "number": "9",
        "name": "VCO_IN",
        "type": "input",
        "description": "VCO input with a typical input resistance of 10 MΩ, fed by the low-pass filter and set to 0.5VDD for the center frequency."
      },
      {
        "number": "10",
        "name": "SF_OUT",
        "type": "output",
        "description": "Source-follower output of the VCO input voltage, which needs a load resistor RL to VSS if used and should be left open if unused."
      },
      {
        "number": "11",
        "name": "R1",
        "type": "passive",
        "description": "Resistor R1 connection, which with C1 sets the VCO frequency range, with a recommended range of 10 kΩ to 1 MΩ."
      },
      {
        "number": "12",
        "name": "R2",
        "type": "passive",
        "description": "Resistor R2 connection, which sets an optional VCO frequency offset, with a recommended range of 10 kΩ to 1 MΩ."
      },
      {
        "number": "13",
        "name": "PC2_OUT",
        "type": "tri_state",
        "description": "Phase comparator 2 3-state output that drives to VDD or VSS or goes high-impedance when locked."
      },
      {
        "number": "14",
        "name": "SIG_IN",
        "type": "input",
        "description": "Signal input that can be direct-coupled with standard HEF4000B logic levels or capacitively coupled to the self-biasing amplifier for smaller swings."
      },
      {
        "number": "15",
        "name": "ZENER",
        "type": "passive",
        "description": "Zener diode input for regulated supply, with a typical working voltage of 7.3 V at IZ = 50 μA, and left open when unused."
      },
      {
        "number": "16",
        "name": "VDD",
        "type": "power_in",
        "description": "Supply voltage from 3.0 V to 15.0 V (absolute maximum 18 V), with PLL operation requiring 5 V to 15 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: Pin types are inferred from the functional descriptions, not stated by the datasheet. C1A, C1B, R1, ; The datasheet says to leave ZENER (pin 15) open when unused only in the static-characteristics footn"
        ],
        "pages_sent": 17,
        "cost_usd": 0.1587,
        "at": "2026-10-23T02:59:44"
      },
      "datasheet": {
        "url": "https://assets.nexperia.com/documents/data-sheet/HEF4046BT.pdf",
        "pages": 17,
        "sha256": "558bd23805a1d9bd",
        "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"
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        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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        "sha256": "3a9a50bfa899762344828799e260c69912de61d5baa95b8c443db789ab5c51a9",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  }
}