XD74LS248

{
  "slug": "xd74ls248",
  "version": "0.1.0",
  "type": "component",
  "description": "XINLUDA LED Display Drivers, DIP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "display modules - led drivers - display drivers",
    "xd74ls248",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "xd74ls248.kicad_sym",
    "xd74ls248.kicad_mod",
    "xd74ls248.glb",
    "xd74ls248.step",
    "xd74ls248.lbr",
    "docs/hero.png",
    "docs/xd74ls248-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "xd74ls248-hero.glb",
    "xd74ls248-hero.overlay.json",
    "xd74ls248-etched.glb"
  ],
  "component": {
    "mpn": "XD74LS248",
    "manufacturer": "XINLUDA",
    "package": "DIP-16",
    "pin_count": 16,
    "category": "Display Modules / LED Drivers / Display Drivers",
    "subcategory": "LED Display Drivers",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/d402e8f3ab2eb9e79be95f0e68426480.pdf",
    "parts": {
      "symbol": "xd74ls248.kicad_sym",
      "footprint": "xd74ls248.kicad_mod",
      "model_3d": "xd74ls248-hero.glb",
      "model_3d_plain": "xd74ls248-etched.glb",
      "model_3d_step": "xd74ls248-etched.step",
      "model_3d_step_plain": "xd74ls248.step",
      "lbr": "xd74ls248.lbr"
    },
    "distributor_links": {
      "lcsc": "C609772"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T22:52:42Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "deferred",
        "error": "shared DigiKey quota guard: 877 calls left today"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "B",
        "type": "input",
        "description": "BCD input B; TTL-compatible, high-level input at least 2 V and low-level at most 0.8 V."
      },
      {
        "number": "2",
        "name": "C",
        "type": "input",
        "description": "BCD input C; TTL-compatible, high-level input at least 2 V and low-level at most 0.8 V."
      },
      {
        "number": "3",
        "name": "LT",
        "type": "input",
        "description": "Active-low lamp test input; with BI/RBO high, a low level turns on all segment outputs."
      },
      {
        "number": "4",
        "name": "BI/RBO",
        "type": "bidirectional",
        "description": "Blanking input (active low) that forces all segment outputs off, or ripple-blanking output, with IOL 3.2 mA max and IOH -50 µA max on the 247 spec."
      },
      {
        "number": "5",
        "name": "RBI",
        "type": "input",
        "description": "Active-low ripple-blanking input for leading/trailing-edge zero suppression; blanks outputs when low with BCD inputs at zero."
      },
      {
        "number": "6",
        "name": "D",
        "type": "input",
        "description": "BCD input D (most significant bit); TTL-compatible, high-level input at least 2 V and low-level at most 0.8 V."
      },
      {
        "number": "7",
        "name": "A",
        "type": "input",
        "description": "BCD input A (least significant bit); TTL-compatible, high-level input at least 2 V and low-level at most 0.8 V."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Ground, the network ground terminal for all voltage values."
      },
      {
        "number": "9",
        "name": "e",
        "type": "output",
        "description": "Segment e output, active-high with internal pull-up on the 'LS248."
      },
      {
        "number": "10",
        "name": "d",
        "type": "output",
        "description": "Segment d output, active-high with internal pull-up on the 'LS248."
      },
      {
        "number": "11",
        "name": "c",
        "type": "output",
        "description": "Segment c output, active-high with internal pull-up on the 'LS248."
      },
      {
        "number": "12",
        "name": "b",
        "type": "output",
        "description": "Segment b output, active-high with internal pull-up on the 'LS248."
      },
      {
        "number": "13",
        "name": "a",
        "type": "output",
        "description": "Segment a output, active-high with internal pull-up on the 'LS248."
      },
      {
        "number": "14",
        "name": "g",
        "type": "output",
        "description": "Segment g output, active-high with internal pull-up on the 'LS248."
      },
      {
        "number": "15",
        "name": "f",
        "type": "output",
        "description": "Segment f output, active-high with internal pull-up on the 'LS248."
      },
      {
        "number": "16",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage, 4.75 V to 5.25 V recommended (5 V nominal), 7 V absolute maximum."
      }
    ],
    "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: Datasheet electrical tables are labelled for 74LS247/74LS47, not the 'LS248. Pin 4 current limits an",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 10,
        "cost_usd": 0.2376,
        "at": "2026-10-22T22:52:20"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/d402e8f3ab2eb9e79be95f0e68426480.pdf",
        "pages": 10,
        "sha256": "6a771520ab4676dd",
        "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": "xd74ls248.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          7.874,
          19.177,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "17a30b1f0ab3fd5384a1231e3c63c394888d5b952c542a8c189e023ed3467464",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "xd74ls248-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          7.874,
          19.177,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "50da70735bd006c2ec158bf16fd6f665e6667de1ef8fee754e561109644efb80",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}