TLC555N

{
  "slug": "tlc555n",
  "version": "0.1.0",
  "type": "component",
  "description": "HGSEMI Timers / Counters, DIP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "clock-timing",
    "tlc555n",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tlc555n.kicad_sym",
    "tlc555n.kicad_mod",
    "tlc555n.glb",
    "tlc555n.step",
    "tlc555n.lbr",
    "docs/hero.png",
    "docs/tlc555n-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tlc555n-hero.glb",
    "tlc555n-hero.overlay.json",
    "tlc555n-etched.glb"
  ],
  "component": {
    "mpn": "TLC555N",
    "manufacturer": "HGSEMI",
    "package": "DIP-8",
    "pin_count": 8,
    "category": "Clock/Timing",
    "subcategory": "Timers / Counters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8758141654425444352",
    "parts": {
      "symbol": "tlc555n.kicad_sym",
      "footprint": "tlc555n.kicad_mod",
      "model_3d": "tlc555n-hero.glb",
      "model_3d_plain": "tlc555n-etched.glb",
      "model_3d_step": "tlc555n-etched.step",
      "model_3d_step_plain": "tlc555n.step",
      "lbr": "tlc555n.lbr"
    },
    "distributor_links": {
      "lcsc": "C725329"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T05:55:51Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "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 flip-flop and drives output high when below 1/3 VCC; trigger current is 10 pA max at VCC=5V."
      },
      {
        "number": "3",
        "name": "OUTPUT",
        "type": "output",
        "description": "Timer output, TTL/CMOS compatible at 5V; VOL 0.4 V max at 3.2 mA sink and VOH 4.0 V min at -2 mA at VCC=5V."
      },
      {
        "number": "4",
        "name": "RESET",
        "type": "input",
        "description": "Active-low reset that forces output low and turns the discharge switch on; reset voltage is 0.4 to 1.2 V at VCC=5V, input range -0.3 to VCC+0.3 V."
      },
      {
        "number": "5",
        "name": "CONTROL VOLTAGE",
        "type": "input",
        "description": "Control voltage input that overrides the 2/3 VCC threshold level; 3.33 V typical at VCC=5V."
      },
      {
        "number": "6",
        "name": "THRESHOLD",
        "type": "input",
        "description": "Threshold input that resets the flip-flop when above 2/3 VCC; threshold current is 10 pA max at VCC=5V."
      },
      {
        "number": "7",
        "name": "DISCHARGE",
        "type": "passive",
        "description": "Open-drain discharge transistor output for the timing capacitor; saturation voltage 400 mV max at 10 mA, VCC=5V."
      },
      {
        "number": "8",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply voltage, recommended 4.5 to 15 V, absolute maximum 15 V."
      }
    ],
    "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: DISCHARGE typed passive (open-drain N-FET output); could alternatively be classed as open_collector/",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 11,
        "cost_usd": 0.2287,
        "at": "2026-10-19T05:53:48"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8758141654425444352",
        "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": "tlc555n.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,
          9.27,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "4a377a56a8d9e9c0b86c095ef9ecc1869ac19e7f5069a3247b294250bf4f235d",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tlc555n-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,
          9.27,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "6b1f15cd976b9e97963d3dbbe819664f902e5c71cd164ab8dc60893f3cc8c75d",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}