SN74HC163DR

{
  "slug": "sn74hc163dr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Counters, Dividers, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic",
    "sn74hc163dr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
    "sn74hc163dr.kicad_sym",
    "sn74hc163dr.kicad_mod",
    "sn74hc163dr.glb",
    "sn74hc163dr.step",
    "sn74hc163dr.lbr",
    "docs/hero.png",
    "docs/sn74hc163dr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sn74hc163dr-hero.glb",
    "sn74hc163dr-hero.overlay.json",
    "sn74hc163dr-etched.glb"
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  "component": {
    "mpn": "SN74HC163DR",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-16",
    "pin_count": 16,
    "category": "Logic",
    "subcategory": "Counters, Dividers",
    "datasheet": "https://www.ti.com/lit/ds/symlink/sn74hc163.pdf",
    "parts": {
      "symbol": "sn74hc163dr.kicad_sym",
      "footprint": "sn74hc163dr.kicad_mod",
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      "model_3d_plain": "sn74hc163dr-etched.glb",
      "model_3d_step": "sn74hc163dr-etched.step",
      "model_3d_step_plain": "sn74hc163dr.step",
      "lbr": "sn74hc163dr.lbr"
    },
    "distributor_links": {
      "lcsc": "C338758",
      "digikey": "296-31790-2-ND",
      "mouser": "595-SN74HC163DR"
    },
    "distributor_check": {
      "checked_at": "2026-10-21T17:50:07Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-31790-2-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-SN74HC163DR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "CLR",
        "type": "input",
        "description": "Active-low synchronous clear: a low level sets all four flip-flop outputs low after the next low-to-high CLK transition, regardless of the enable inputs."
      },
      {
        "number": "2",
        "name": "CLK",
        "type": "input",
        "description": "Buffered clock input; the four flip-flops trigger on the rising (positive-going) edge of CLK."
      },
      {
        "number": "3",
        "name": "A",
        "type": "input",
        "description": "Parallel preset data input (bit A); when LOAD is low, the outputs take the preset data after the next clock pulse. Unused inputs must be held at VCC or GND."
      },
      {
        "number": "4",
        "name": "B",
        "type": "input",
        "description": "Parallel preset data input (bit B); when LOAD is low, the outputs take the preset data after the next clock pulse. Unused inputs must be held at VCC or GND."
      },
      {
        "number": "5",
        "name": "C",
        "type": "input",
        "description": "Parallel preset data input (bit C); when LOAD is low, the outputs take the preset data after the next clock pulse. Unused inputs must be held at VCC or GND."
      },
      {
        "number": "6",
        "name": "D",
        "type": "input",
        "description": "Parallel preset data input (bit D); when LOAD is low, the outputs take the preset data after the next clock pulse. Unused inputs must be held at VCC or GND."
      },
      {
        "number": "7",
        "name": "ENP",
        "type": "input",
        "description": "Count-enable input; both ENP and ENT must be high for the counter to count, and transitions at ENP are allowed regardless of the CLK level."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference; the absolute maximum continuous current through VCC or GND is ±50 mA."
      },
      {
        "number": "9",
        "name": "LOAD",
        "type": "input",
        "description": "Active-low synchronous preset input; a low level disables the counter and loads the A-D data on the next clock pulse regardless of the enable inputs."
      },
      {
        "number": "10",
        "name": "ENT",
        "type": "input",
        "description": "Count-enable input that also feeds forward to enable RCO; both ENP and ENT must be high to count."
      },
      {
        "number": "11",
        "name": "QD",
        "type": "output",
        "description": "Counter output bit D (most significant bit of the 4-bit binary count); outputs can drive up to 10 LSTTL loads."
      },
      {
        "number": "12",
        "name": "QC",
        "type": "output",
        "description": "Counter output bit C; outputs can drive up to 10 LSTTL loads."
      },
      {
        "number": "13",
        "name": "QB",
        "type": "output",
        "description": "Counter output bit B; outputs can drive up to 10 LSTTL loads."
      },
      {
        "number": "14",
        "name": "QA",
        "type": "output",
        "description": "Counter output bit A (least significant bit); outputs can drive up to 10 LSTTL loads."
      },
      {
        "number": "15",
        "name": "RCO",
        "type": "output",
        "description": "Ripple-carry output that produces a high-level pulse while the count is maximum (9 or 15 with QA high) when ENT is high, for cascading stages."
      },
      {
        "number": "16",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage: recommended operating range 2 V to 6 V (5 V nominal), absolute maximum −0.5 V to 7 V."
      }
    ],
    "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 top-view pin list in the datasheet text is garbled. The pin assignment was taken from the 1..16 ; The datasheet gives no explicit description for the GND pin, so its description is limited to the pa"
        ],
        "pages_sent": 30,
        "cost_usd": 0.0905,
        "at": "2026-10-21T17:44:32"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/sn74hc163.pdf",
        "pages": 30,
        "sha256": "7033099817317f28",
        "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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      "footprint": "viewers/footprint.html"
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        "zmin_mm": -0.0,
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        "checked": "2026-10-21",
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  }
}