MC74AC163DR2G

{
  "slug": "mc74ac163dr2g",
  "version": "0.1.0",
  "type": "component",
  "description": "onsemi Counters, Dividers, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic",
    "mc74ac163dr2g",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "mc74ac163dr2g.kicad_sym",
    "mc74ac163dr2g.kicad_mod",
    "mc74ac163dr2g.glb",
    "mc74ac163dr2g.step",
    "mc74ac163dr2g.lbr",
    "docs/hero.png",
    "docs/mc74ac163dr2g-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "mc74ac163dr2g-hero.glb",
    "mc74ac163dr2g-hero.overlay.json",
    "mc74ac163dr2g-etched.glb"
  ],
  "component": {
    "mpn": "MC74AC163DR2G",
    "manufacturer": "onsemi",
    "package": "SOIC-16",
    "pin_count": 16,
    "category": "Logic",
    "subcategory": "Counters, Dividers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588929875147436032",
    "parts": {
      "symbol": "mc74ac163dr2g.kicad_sym",
      "footprint": "mc74ac163dr2g.kicad_mod",
      "model_3d": "mc74ac163dr2g-hero.glb",
      "model_3d_plain": "mc74ac163dr2g-etched.glb",
      "model_3d_step": "mc74ac163dr2g-etched.step",
      "model_3d_step_plain": "mc74ac163dr2g.step",
      "lbr": "mc74ac163dr2g.lbr"
    },
    "distributor_links": {
      "lcsc": "C903971",
      "digikey": "MC74AC163DR2GOSTR-ND",
      "mouser": "863-MC74AC163DR2G"
    },
    "distributor_check": {
      "checked_at": "2026-10-20T23:06:50Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "MC74AC163DR2GOSTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "863-MC74AC163DR2G",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "SR",
        "type": "input",
        "description": "Synchronous Reset input (MR on the '161 variant); a LOW overrides counting and parallel loading and lets all outputs go LOW on the next rising CP edge."
      },
      {
        "number": "2",
        "name": "CP",
        "type": "input",
        "description": "Clock pulse input; all Q outputs change only on the LOW-to-HIGH transition of CP."
      },
      {
        "number": "3",
        "name": "P0",
        "type": "input",
        "description": "Parallel data input 0, loaded into flip-flop Q0 on the rising CP edge when PE is LOW."
      },
      {
        "number": "4",
        "name": "P1",
        "type": "input",
        "description": "Parallel data input 1, loaded into flip-flop Q1 on the rising CP edge when PE is LOW."
      },
      {
        "number": "5",
        "name": "P2",
        "type": "input",
        "description": "Parallel data input 2, loaded into flip-flop Q2 on the rising CP edge when PE is LOW."
      },
      {
        "number": "6",
        "name": "P3",
        "type": "input",
        "description": "Parallel data input 3, loaded into flip-flop Q3 on the rising CP edge when PE is LOW."
      },
      {
        "number": "7",
        "name": "CEP",
        "type": "input",
        "description": "Count Enable Parallel input; counting requires CEP and CET both HIGH, and a LOW on CEP inhibits counting."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device."
      },
      {
        "number": "9",
        "name": "PE",
        "type": "input",
        "description": "Parallel Enable input; a LOW overrides counting and loads the Pn data into the flip-flops on the next rising CP edge."
      },
      {
        "number": "10",
        "name": "CET",
        "type": "input",
        "description": "Count Enable Trickle input; counting requires CET HIGH, and a LOW inhibits counting and holds the TC output low."
      },
      {
        "number": "11",
        "name": "Q3",
        "type": "output",
        "description": "Flip-flop output Q3 (binary MSB), capable of sourcing and sinking 24 mA."
      },
      {
        "number": "12",
        "name": "Q2",
        "type": "output",
        "description": "Flip-flop output Q2, capable of sourcing and sinking 24 mA."
      },
      {
        "number": "13",
        "name": "Q1",
        "type": "output",
        "description": "Flip-flop output Q1, capable of sourcing and sinking 24 mA."
      },
      {
        "number": "14",
        "name": "Q0",
        "type": "output",
        "description": "Flip-flop output Q0 (binary LSB), capable of sourcing and sinking 24 mA."
      },
      {
        "number": "15",
        "name": "TC",
        "type": "output",
        "description": "Terminal Count output, HIGH when CET is HIGH and the counter is in state 15; it is subject to decoding spikes and is not recommended as a clock or asynchronous reset."
      },
      {
        "number": "16",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage; 2.0 to 6.0 V for the AC family, 4.5 to 5.5 V for the ACT family, per the recommended operating conditions."
      }
    ],
    "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's pin assignment table lists functions without numbers. The pin numbers were taken fro; Pin 1 is labeled *R in Figure 1, which stands for MR on the '161 and SR on the '163. Pin 1 is named ; The VCC range is taken from the recommended operating conditions on page 4 rather than from the pino"
        ],
        "pages_sent": 13,
        "cost_usd": 0.0848,
        "at": "2026-10-20T23:03:50"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588929875147436032",
        "pages": 13,
        "sha256": "5bacfa2bf29bd96b",
        "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": "mc74ac163dr2g.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          9.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "mc74ac163dr2g-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
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          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "91c5cde2bd2166f1944c20c2146d82d0e078fbcc7a50bce2d8cc81d32cadbf46",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}