TLC555M

{
  "slug": "tlc555m",
  "version": "0.1.0",
  "type": "component",
  "description": "HGSEMI Timers / Counters, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "clock-timing",
    "tlc555m",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tlc555m.kicad_sym",
    "tlc555m.kicad_mod",
    "tlc555m.glb",
    "tlc555m.step",
    "tlc555m.lbr",
    "docs/hero.png",
    "docs/tlc555m-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tlc555m-hero.glb",
    "tlc555m-hero.overlay.json",
    "tlc555m-etched.glb"
  ],
  "component": {
    "mpn": "TLC555M",
    "manufacturer": "HGSEMI",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Clock/Timing",
    "subcategory": "Timers / Counters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8758141585521688576",
    "parts": {
      "symbol": "tlc555m.kicad_sym",
      "footprint": "tlc555m.kicad_mod",
      "model_3d": "tlc555m-hero.glb",
      "model_3d_plain": "tlc555m-etched.glb",
      "model_3d_step": "tlc555m-etched.step",
      "model_3d_step_plain": "tlc555m.step",
      "lbr": "tlc555m.lbr"
    },
    "distributor_links": {
      "lcsc": "C383061"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T22:24:25Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground; all voltages are measured relative to this pin."
      },
      {
        "number": "2",
        "name": "TRIGGER",
        "type": "input",
        "description": "Trigger input that sets the output high when its voltage falls below 1/3 VCC, with typical input current of 20pA (10pA max at VCC=5V)."
      },
      {
        "number": "3",
        "name": "OUTPUT",
        "type": "output",
        "description": "Timer output, TTL and CMOS compatible at 5V, with VOL 0.4V max at 3.2mA and VOH 4.0V min at -2mA (VCC=5V)."
      },
      {
        "number": "4",
        "name": "RESET",
        "type": "input",
        "description": "Active-low reset that forces the output low and turns the discharge switch on; input range -0.3V to VCC+0.3V."
      },
      {
        "number": "5",
        "name": "CONTROL VOLTAGE",
        "type": "input",
        "description": "Control voltage input that sets the comparator thresholds, typically 3.33V at VCC=5V; input range -0.3V to VCC+0.3V."
      },
      {
        "number": "6",
        "name": "THRESHOLD",
        "type": "input",
        "description": "Threshold input that drives the output low and turns on the discharge switch when above 2/3 VCC; input range -0.3V to VCC+0.3V."
      },
      {
        "number": "7",
        "name": "DISCHARGE",
        "type": "passive",
        "description": "Open-drain discharge transistor output for the timing capacitor, with 400mV max saturation voltage at 10mA (VCC=5V)."
      },
      {
        "number": "8",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply, recommended 4.5V to 15V, absolute maximum 15V."
      }
    ],
    "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 descriptions are summarized from the truth table, electrical characteristics and block diagram. ",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 11,
        "cost_usd": 0.2276,
        "at": "2026-10-18T22:20:41"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8758141585521688576",
        "pages": 11,
        "sha256": "777c468f30a3b658",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "tlc555m.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tlc555m-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "7ffe6e9f66d532f9d5298b44c448b6de9e820938d380371bac00470385958ddf",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}