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Ray Set visibility: public 3d5ebfc 7d ago
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{
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  "type": "component",
  "slug": "xd74c922",
  "title": "XD74C922",
  "brief": "XINLUDA Signal Switches, Multiplexers, Decoders, DIP-18. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "logic",
    "xd74c922",
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  "component": {
    "mpn": "XD74C922",
    "manufacturer": "XINLUDA",
    "package": "DIP-18",
    "pin_count": 18,
    "category": "Logic",
    "subcategory": "Signal Switches, Multiplexers, Decoders",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588897269936898048",
    "parts": {
      "symbol": "xd74c922.kicad_sym",
      "footprint": "xd74c922.kicad_mod",
      "model_3d": "xd74c922-hero.glb",
      "model_3d_plain": "xd74c922-etched.glb",
      "model_3d_step": "xd74c922-etched.step",
      "model_3d_step_plain": "xd74c922.step",
      "lbr": "xd74c922.lbr"
    },
    "distributor_links": {
      "lcsc": "C968660"
    },
    "distributor_check": {
      "checked_at": "2026-10-21T17:40:19Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "ROW Y1",
        "type": "input",
        "description": "Row 1 input from the key matrix with an on-chip pull-up; goes low when a key in row Y1 is closed during column scan."
      },
      {
        "number": "2",
        "name": "ROW Y2",
        "type": "input",
        "description": "Row 2 input from the key matrix with an on-chip pull-up; goes low when a key in row Y2 is closed during column scan."
      },
      {
        "number": "3",
        "name": "ROW Y3",
        "type": "input",
        "description": "Row 3 input from the key matrix with an on-chip pull-up; goes low when a key in row Y3 is closed during column scan."
      },
      {
        "number": "4",
        "name": "ROW Y4",
        "type": "input",
        "description": "Row 4 input from the key matrix with an on-chip pull-up; goes low when a key in row Y4 is closed during column scan."
      },
      {
        "number": "5",
        "name": "OSCILLATOR",
        "type": "input",
        "description": "Schmitt-trigger oscillator input that sets the keyboard scan rate, driven by an external capacitor or external clock."
      },
      {
        "number": "6",
        "name": "KEYBOUNCE MASK",
        "type": "input",
        "description": "Key bounce mask input; a single external capacitor sets the debounce period, and omitting the capacitor defeats debounce."
      },
      {
        "number": "7",
        "name": "COLUMN X4",
        "type": "output",
        "description": "Column 4 open-drain scan output to the key matrix, driven low sequentially (column ON resistance max 1400 ohm at VCC=5V)."
      },
      {
        "number": "8",
        "name": "COLUMN X3",
        "type": "output",
        "description": "Column 3 open-drain scan output to the key matrix, driven low sequentially (column ON resistance max 1400 ohm at VCC=5V)."
      },
      {
        "number": "9",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "10",
        "name": "COLUMN X2",
        "type": "output",
        "description": "Column 2 open-drain scan output to the key matrix, driven low sequentially (column ON resistance max 1400 ohm at VCC=5V)."
      },
      {
        "number": "11",
        "name": "COLUMN X1",
        "type": "output",
        "description": "Column 1 open-drain scan output to the key matrix, driven low sequentially (column ON resistance max 1400 ohm at VCC=5V)."
      },
      {
        "number": "12",
        "name": "DATA AVAILABLE",
        "type": "output",
        "description": "Goes high when a valid keyboard entry has been made and returns low when the key is released."
      },
      {
        "number": "13",
        "name": "OUTPUT ENABLE",
        "type": "input",
        "description": "Active-low output enable; taking it low enables the 3-STATE data outputs."
      },
      {
        "number": "14",
        "name": "DATA OUT D",
        "type": "tri_state",
        "description": "3-STATE LPTTL-compatible encoded key output bit D, holding the last key pressed."
      },
      {
        "number": "15",
        "name": "DATA OUT C",
        "type": "tri_state",
        "description": "3-STATE LPTTL-compatible encoded key output bit C, holding the last key pressed."
      },
      {
        "number": "16",
        "name": "DATA OUT B",
        "type": "tri_state",
        "description": "3-STATE LPTTL-compatible encoded key output bit B, holding the last key pressed."
      },
      {
        "number": "17",
        "name": "DATA OUT A",
        "type": "tri_state",
        "description": "3-STATE LPTTL-compatible encoded key output bit A, holding the last key pressed."
      },
      {
        "number": "18",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply, operating range 3V to 15V (absolute maximum 18V)."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588897269936898048",
        "pages": 11,
        "sha256": "5a5db127be601c00",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 18,
        "described": 18,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
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    "models_3d": [
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        "file": "xd74c922.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
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        "zmin_mm": -3.3,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "c9e1ad672f0603e5818e9d0329669eb09ec9fa91bae3fdad8cdfa245e05c3b5f",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "xd74c922-etched.step",
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "XINLUDA",
      "Package": "DIP-18",
      "Category": "Logic",
      "Pins": "18"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "5a5db127be601c006a9bc0ac7c980368e4d906e391c2d037a4bd90335b14969f",
      "rows": [
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          "conditions": "",
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          "name": "Operating Temperature Range",
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          "min": -40,
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          "name": "Storage Temperature Range",
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          "min": -65,
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          "name": "Lead Temperature",
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          "unit": "°C",
          "min": null,
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          "max": 260,
          "conditions": "Soldering, 10 seconds",
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        {
          "name": "Power Dissipation (PD), Dual-In-Line",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "mW",
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          "name": "Positive-Going Threshold Voltage at Osc and KBM Inputs",
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          "conditions": "VCC = 15V, IIN = 2.1 mA",
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          "name": "Negative-Going Threshold Voltage at Osc and KBM Inputs",
          "symbol": "VT",
          "kind": "electrical",
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          "name": "Negative-Going Threshold Voltage at Osc and KBM Inputs",
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          "name": "Negative-Going Threshold Voltage at Osc and KBM Inputs",
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          "source_page": 4,
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          "name": "Logical '1' Input Voltage, Except Osc and KBM Inputs",
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          "source_page": 4,
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        {
          "name": "Logical '1' Input Voltage, Except Osc and KBM Inputs",
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          "name": "Logical '1' Input Voltage, Except Osc and KBM Inputs",
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          "name": "Logical '0' Input Voltage, Except Osc and KBM Inputs",
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          "name": "Logical '0' Input Voltage, Except Osc and KBM Inputs",
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          "name": "Logical '0' Input Voltage, Except Osc and KBM Inputs",
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          "conditions": "VCC = 15V",
          "source_page": 4,
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        },
        {
          "name": "Row Pull-Up Current at Y1, Y2, Y3, Y4 and Y5 Inputs",
          "symbol": "Irp",
          "kind": "electrical",
          "unit": "µA",
          "min": 2,
          "typ": 10,
          "max": 22,
          "conditions": "VCC = 5V, VIN = 0.1 VCC",
          "source_page": 4,
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        {
          "name": "Logical '1' Output Voltage",
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          "min": 9,
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          "conditions": "VCC = 10V, IO = 10 µA",
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        {
          "name": "Logical '1' Output Voltage",
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          "min": 13.5,
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          "conditions": "VCC = 15V, IO = 10 µA",
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        {
          "name": "Logical '0' Output Voltage",
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          "kind": "electrical",
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          "min": null,
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          "max": 0.5,
          "conditions": "VCC = 5V, IO = 10 µA",
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        {
          "name": "Logical '0' Output Voltage",
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          "min": null,
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          "conditions": "VCC = 10V, IO = 10 µA",
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        {
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          "min": null,
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          "max": 1.5,
          "conditions": "VCC = 15V, IO = 10 µA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Column 'ON' Resistance at X1, X2, X3 and X4 Outputs",
          "symbol": "Ron",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 500,
          "max": 1400,
          "conditions": "VCC = 5V, VO = 0.5V",
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        {
          "name": "Column 'ON' Resistance at X1, X2, X3 and X4 Outputs",
          "symbol": "Ron",
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          "conditions": "VCC = 10V, VO = 1V",
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        {
          "name": "Column 'ON' Resistance at X1, X2, X3 and X4 Outputs",
          "symbol": "Ron",
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          "conditions": "VCC = 15V, VO = 1.5V",
          "source_page": 4,
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        {
          "name": "Supply Current",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.55,
          "max": 1.1,
          "conditions": "Osc at 0V, one Y low; VCC = 5V",
          "source_page": 4,
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        {
          "name": "Supply Current",
          "symbol": "ICC",
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          "conditions": "Osc at 0V, one Y low; VCC = 10V",
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          "conditions": "Osc at 0V, one Y low; VCC = 15V",
          "source_page": 4,
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        {
          "name": "Logical '1' Input Current at Output Enable",
          "symbol": "IIN(1)",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
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          "max": 1,
          "conditions": "VCC = 15V, VIN = 15V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Logical '0' Input Current at Output Enable",
          "symbol": "IIN(0)",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
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          "max": 1,
          "conditions": "VCC = 15V, VIN = 0V",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "Logical '0' Input Voltage, Except Osc and KBM Inputs (CMOS/LPTTL)",
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          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.8,
          "conditions": "VCC = 4.75V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Logical '1' Output Voltage (CMOS/LPTTL)",
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          "kind": "electrical",
          "unit": "V",
          "min": 2.4,
          "typ": null,
          "max": null,
          "conditions": "VCC = 4.75V, IO = 360 µA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Logical '0' Output Voltage (CMOS/LPTTL)",
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          "kind": "electrical",
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          "max": 0.4,
          "conditions": "VCC = 4.75V, IO = 360 µA",
          "source_page": 5,
          "source": "datasheet"
        },
        {
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