XD74LS190

{
  "slug": "xd74ls190",
  "version": "0.1.0",
  "type": "component",
  "description": "XINLUDA Counters, Dividers, DIP-16. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "logic",
    "xd74ls190",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "xd74ls190.kicad_sym",
    "xd74ls190.kicad_mod",
    "xd74ls190.glb",
    "xd74ls190.step",
    "xd74ls190.lbr",
    "docs/hero.png",
    "docs/xd74ls190-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "xd74ls190-hero.glb",
    "xd74ls190-hero.overlay.json",
    "xd74ls190-etched.glb"
  ],
  "component": {
    "mpn": "XD74LS190",
    "manufacturer": "XINLUDA",
    "package": "DIP-16",
    "pin_count": 16,
    "category": "Logic",
    "subcategory": "Counters, Dividers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588903247335862272",
    "parts": {
      "symbol": "xd74ls190.kicad_sym",
      "footprint": "xd74ls190.kicad_mod",
      "model_3d": "xd74ls190-hero.glb",
      "model_3d_plain": "xd74ls190-etched.glb",
      "model_3d_step": "xd74ls190-etched.step",
      "model_3d_step_plain": "xd74ls190.step",
      "lbr": "xd74ls190.lbr"
    },
    "distributor_links": {
      "lcsc": "C707104"
    },
    "distributor_check": {
      "checked_at": "2026-10-21T23:23:38Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "B",
        "type": "input",
        "description": "Data input B, preset data entered when Load is low."
      },
      {
        "number": "2",
        "name": "QB",
        "type": "output",
        "description": "Counter output QB from the master-slave flip-flops; IOL max 8 mA, IOH max -400 uA."
      },
      {
        "number": "3",
        "name": "QA",
        "type": "output",
        "description": "Counter output QA from the master-slave flip-flops; IOL max 8 mA, IOH max -400 uA."
      },
      {
        "number": "4",
        "name": "G",
        "type": "input",
        "description": "Active-low Enable input; a low allows counting on the clock low-to-high transition and a high inhibits counting."
      },
      {
        "number": "5",
        "name": "Down/Up",
        "type": "input",
        "description": "Direction control input; low counts up, high counts down, and changes should be made only when clock is high."
      },
      {
        "number": "6",
        "name": "QC",
        "type": "output",
        "description": "Counter output QC from the master-slave flip-flops; IOL max 8 mA, IOH max -400 uA."
      },
      {
        "number": "7",
        "name": "QD",
        "type": "output",
        "description": "Counter output QD from the master-slave flip-flops; IOL max 8 mA, IOH max -400 uA."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Ground, the 0 V reference for the supply."
      },
      {
        "number": "9",
        "name": "D",
        "type": "input",
        "description": "Data input D, preset data entered when Load is low."
      },
      {
        "number": "10",
        "name": "C",
        "type": "input",
        "description": "Data input C, preset data entered when Load is low."
      },
      {
        "number": "11",
        "name": "Load",
        "type": "input",
        "description": "Active-low asynchronous load input; a low presets the outputs to the data inputs independently of the clock."
      },
      {
        "number": "12",
        "name": "Max/Min",
        "type": "output",
        "description": "Maximum/minimum count output; gives a high pulse about one clock cycle long on overflow or underflow, for look-ahead cascading."
      },
      {
        "number": "13",
        "name": "Ripple Clock",
        "type": "output",
        "description": "Active-low ripple clock output; gives a low pulse equal to the low portion of the clock on overflow or underflow, for cascading."
      },
      {
        "number": "14",
        "name": "Clock",
        "type": "input",
        "description": "Clock input, triggered on the low-to-high transition when Enable is low; maximum clock frequency 20 MHz."
      },
      {
        "number": "15",
        "name": "A",
        "type": "input",
        "description": "Data input A, preset data entered when Load is low."
      },
      {
        "number": "16",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply, recommended 4.75 to 5.25 V (absolute maximum 7 V)."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588903247335862272",
        "pages": 10,
        "sha256": "53f5818b6d625de6",
        "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": "xd74ls190.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": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "xd74ls190-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": "e8c263e2fb9220510483a4ce1a80d07d02fdf655d4bd78ba041d3ceb9c10551a",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}