XD555

{
  "schema_version": 1,
  "type": "component",
  "slug": "xd555",
  "title": "XD555",
  "brief": "XINLUDA Timers / Counters, DIP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "clock-timing",
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  "component": {
    "mpn": "XD555",
    "manufacturer": "XINLUDA",
    "package": "DIP-8",
    "pin_count": 8,
    "category": "Clock/Timing",
    "subcategory": "Timers / Counters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588886925428473856",
    "parts": {
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      "footprint": "xd555.kicad_mod",
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      "lbr": "xd555.lbr"
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    "distributor_links": {
      "lcsc": "C521185"
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    "distributor_check": {
      "checked_at": "2026-10-16T06:31:41Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
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      "mouser": {
        "pn": null,
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    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin for the device."
      },
      {
        "number": "2",
        "name": "TRIG",
        "type": "input",
        "description": "Start-of-timing input; TRIG below 1/2 CONT sets the output high and opens the discharge path."
      },
      {
        "number": "3",
        "name": "OUT",
        "type": "output",
        "description": "High-current timer output signal."
      },
      {
        "number": "4",
        "name": "RESET",
        "type": "input",
        "description": "Active-low reset input that forces the output and discharge low."
      },
      {
        "number": "5",
        "name": "CONT",
        "type": "input",
        "description": "Controls the comparator thresholds, sets them to 2/3 VDD, and allows a bypass capacitor connection."
      },
      {
        "number": "6",
        "name": "THRES",
        "type": "input",
        "description": "End-of-timing input; THRES above CONT sets the output low and the discharge low."
      },
      {
        "number": "7",
        "name": "DISCH",
        "type": "output",
        "description": "Open-collector output used to discharge the timing capacitor."
      },
      {
        "number": "8",
        "name": "VDD",
        "type": "power_in",
        "description": "Power-supply voltage input; the datasheet specifies single-supply operation from 2 V to 16 V."
      }
    ],
    "provenance": {
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        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The pin table on page 2 is the only pinout source. Its header reads 'PIIN' (typo for PIN), and the D; The datasheet lists DISCH as 'Output' and describes it as open collector. The output type 'output' w"
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        "cost_usd": 0.0421,
        "at": "2026-10-16T06:31:27"
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        "sha256": "fde2e26f9d6cb995",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
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    },
    "viewers": {
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      "Package": "DIP-8",
      "Category": "Clock/Timing",
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          "name": "Reset voltage",
          "symbol": "VRESET",
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          "min": 0.3,
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          "max": 2.1,
          "conditions": "VCC = +5 V; Tmin ≤ Tamb ≤ Tmax",
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        {
          "name": "Reset current",
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          "kind": "electrical",
          "unit": "pA",
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        {
          "name": "Timing accuracy (monostable)",
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          "kind": "tolerance",
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          "name": "Output rise time",
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          "name": "Minimum reset pulse width",
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