SN74LS163ADR

{
  "slug": "sn74ls163adr",
  "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",
    "sn74ls163adr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sn74ls163adr.kicad_sym",
    "sn74ls163adr.kicad_mod",
    "sn74ls163adr.glb",
    "sn74ls163adr.step",
    "sn74ls163adr.lbr",
    "docs/hero.png",
    "docs/sn74ls163adr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sn74ls163adr-hero.glb",
    "sn74ls163adr-hero.overlay.json"
  ],
  "component": {
    "mpn": "SN74LS163ADR",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-16",
    "pin_count": 16,
    "category": "Logic",
    "subcategory": "Counters, Dividers",
    "datasheet": "https://www.ti.com/lit/ds/symlink/sn74ls163a.pdf",
    "parts": {
      "symbol": "sn74ls163adr.kicad_sym",
      "footprint": "sn74ls163adr.kicad_mod",
      "model_3d": "sn74ls163adr-hero.glb",
      "model_3d_plain": "sn74ls163adr.glb",
      "model_3d_step": "sn74ls163adr-etched.step",
      "model_3d_step_plain": "sn74ls163adr.step",
      "lbr": "sn74ls163adr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2675457",
      "digikey": "296-44704-2-ND",
      "mouser": "595-SN74LS163ADR"
    },
    "distributor_check": {
      "checked_at": "2026-10-05T21:22:13Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-44704-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-SN74LS163ADR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "CLR",
        "type": "input",
        "description": "Active-low clear input; on the 'LS163A the clear is synchronous and sets all four flip-flop outputs low after the next clock pulse regardless of the enable inputs."
      },
      {
        "number": "2",
        "name": "CLK",
        "type": "input",
        "description": "Clock input; the buffered clock triggers the four flip-flops on the rising edge of the clock waveform."
      },
      {
        "number": "3",
        "name": "A",
        "type": "input",
        "description": "Data input A, loaded synchronously into the QA flip-flop when LOAD is low."
      },
      {
        "number": "4",
        "name": "B",
        "type": "input",
        "description": "Data input B, loaded synchronously into the QB flip-flop when LOAD is low."
      },
      {
        "number": "5",
        "name": "C",
        "type": "input",
        "description": "Data input C, loaded synchronously into the QC flip-flop when LOAD is low."
      },
      {
        "number": "6",
        "name": "D",
        "type": "input",
        "description": "Data input D, loaded synchronously into the QD flip-flop when LOAD is low."
      },
      {
        "number": "7",
        "name": "ENP",
        "type": "input",
        "description": "Count-enable input P; with ENT it enables counting when both are high."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "9",
        "name": "LOAD",
        "type": "input",
        "description": "Active-low synchronous load input; a low level disables the counter and loads the data inputs on the next clock pulse regardless of the enable inputs."
      },
      {
        "number": "10",
        "name": "ENT",
        "type": "input",
        "description": "Count-enable input T; it also gates the ripple carry output RCO."
      },
      {
        "number": "11",
        "name": "QD",
        "type": "output",
        "description": "Counter output D (most significant bit)."
      },
      {
        "number": "12",
        "name": "QC",
        "type": "output",
        "description": "Counter output C."
      },
      {
        "number": "13",
        "name": "QB",
        "type": "output",
        "description": "Counter output B."
      },
      {
        "number": "14",
        "name": "QA",
        "type": "output",
        "description": "Counter output A (least significant bit)."
      },
      {
        "number": "15",
        "name": "RCO",
        "type": "output",
        "description": "Ripple carry output for n-bit cascading; counting spikes may occur on this output."
      },
      {
        "number": "16",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage."
      }
    ],
    "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+vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin numbers are from the D/J/N/W top-view pinout on page 1; the D package drawing itself is not in t",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 40,
        "cost_usd": 0.5127,
        "at": "2026-10-05T21:21:54"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/sn74ls163a.pdf",
        "pages": 40,
        "sha256": "0ea50a72dfbd95c3",
        "source_tier": "mfr"
      },
      "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"
    }
  }
}