CD74HC4046APWR

{
  "slug": "cd74hc4046apwr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Clock Generators, PLLs, Frequency Synthesizers, TSSOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "clock-timing",
    "cd74hc4046apwr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
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    "cd74hc4046apwr.step",
    "cd74hc4046apwr.lbr",
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    "docs/cd74hc4046apwr-datasheet.pdf",
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  "component": {
    "mpn": "CD74HC4046APWR",
    "manufacturer": "Texas Instruments",
    "package": "TSSOP-16",
    "pin_count": 16,
    "category": "Clock/Timing",
    "subcategory": "Clock Generators, PLLs, Frequency Synthesizers",
    "datasheet": "https://www.ti.com/lit/ds/symlink/cd74hc4046a.pdf",
    "parts": {
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      "footprint": "cd74hc4046apwr.kicad_mod",
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      "model_3d_step": "cd74hc4046apwr-etched.step",
      "model_3d_step_plain": "cd74hc4046apwr.step",
      "lbr": "cd74hc4046apwr.lbr"
    },
    "distributor_links": {
      "lcsc": "C6543",
      "digikey": "296-9210-2-ND",
      "mouser": "595-CD74HC4046APWR"
    },
    "distributor_check": {
      "checked_at": "2026-10-07T21:34:49Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-9210-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-CD74HC4046APWR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PCPOUT",
        "type": "output",
        "description": "Phase comparator pulse output; the datasheet names this function but gives no electrical limits for this pin."
      },
      {
        "number": "2",
        "name": "PC1OUT",
        "type": "output",
        "description": "Phase comparator 1 output, which is an Exclusive-OR network whose average output is filtered to the VCO input."
      },
      {
        "number": "3",
        "name": "COMPIN",
        "type": "input",
        "description": "Comparator input that receives the VCO output, either directly or through a frequency divider, for comparison with SIGIN."
      },
      {
        "number": "4",
        "name": "VCOOUT",
        "type": "output",
        "description": "VCO output with a specified 50% duty factor, connectable directly to COMPIN or through a frequency divider."
      },
      {
        "number": "5",
        "name": "INH",
        "type": "input",
        "description": "Inhibit input where a LOW level enables the VCO and demodulator and a HIGH level turns both off to minimize standby power consumption."
      },
      {
        "number": "6",
        "name": "C1A",
        "type": "passive",
        "description": "Connection A for external capacitor C1, which together with R1 determines the VCO frequency range."
      },
      {
        "number": "7",
        "name": "C1B",
        "type": "passive",
        "description": "Connection B for external capacitor C1, connected between C1A and C1B."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Ground (0V) reference for the device."
      },
      {
        "number": "9",
        "name": "VCOIN",
        "type": "input",
        "description": "VCO input with high input impedance, which simplifies low-pass filter design."
      },
      {
        "number": "10",
        "name": "DEMOUT",
        "type": "output",
        "description": "Demodulator output equal to the VCO input voltage; if used a load resistor RS should go from DEMOUT to GND, and if unused it should be left open."
      },
      {
        "number": "11",
        "name": "R1",
        "type": "passive",
        "description": "Resistor R1 connection, where R1 to GND together with C1 sets the VCO frequency range."
      },
      {
        "number": "12",
        "name": "R2",
        "type": "passive",
        "description": "Resistor R2 connection, where R2 to GND gives the VCO a frequency offset if required."
      },
      {
        "number": "13",
        "name": "PC2OUT",
        "type": "output",
        "description": "Phase comparator 2 output; with no signal at SIGIN the VCO adjusts to fMIN."
      },
      {
        "number": "14",
        "name": "SIGIN",
        "type": "input",
        "description": "Signal input that can be directly coupled within the HC family input logic levels, or capacitively coupled for smaller signal swings."
      },
      {
        "number": "15",
        "name": "PC3OUT",
        "type": "output",
        "description": "Phase comparator 3 output; with no signal at SIGIN the VCO adjusts to fMAX."
      },
      {
        "number": "16",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply voltage; the VCO section is specified for 3V to 6V and the digital section for 2V to 6V."
      }
    ],
    "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 pinout is shared by the PDIP, SOIC, SOP and TSSOP variants of the CD74HC4046A on page 2; the TSS; The datasheet's pin table gives names and functions only for PCPOUT, so its description is limited t"
        ],
        "pages_sent": 7,
        "cost_usd": 0.0598,
        "at": "2026-10-07T21:34:30"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/cd74hc4046a.pdf",
        "pages": 36,
        "sha256": "047ac408a2e3bcfc",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
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        "checked": "2026-10-07",
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  }
}