LM555DGKRG

{
  "schema_version": 1,
  "type": "component",
  "slug": "lm555dgkrg",
  "title": "LM555DGKRG",
  "brief": "HANSCHIP semiconductor Timers / Counters, MSOP-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": "LM555DGKRG",
    "manufacturer": "HANSCHIP semiconductor",
    "package": "MSOP-8",
    "pin_count": 8,
    "category": "Clock/Timing",
    "subcategory": "Timers / Counters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8600485004363108352",
    "parts": {
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      "lbr": "lm555dgkrg.lbr"
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    "distributor_links": {
      "lcsc": "C19723741"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T02:30:58Z",
      "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 (电源地) reference pin for the timer; the datasheet gives no separate limit for this pin."
      },
      {
        "number": "2",
        "name": "Trig",
        "type": "input",
        "description": "Trigger input that starts the monostable cycle when the voltage falls to 1/3 VCC, with a trigger input current of 2 µA max at VCC = 15 V (VTRIG = 0 V)."
      },
      {
        "number": "3",
        "name": "Output",
        "type": "output",
        "description": "Output driver with a recommended output current of ±200 mA (absolute maximum ±220 mA) and typical high-state output of 13.3 V at VCC = 15 V, IL = -100 mA."
      },
      {
        "number": "4",
        "name": "Reset",
        "type": "input",
        "description": "Active-low reset input: a low level must be at or below 0.5 V and a high level at or above 1.5 V at VCC = 5 V, with a typical reset current of 0.13 mA at VRESET = 0.4 V and VCC = 15 V."
      },
      {
        "number": "5",
        "name": "Cont",
        "type": "passive",
        "description": "Control voltage pin that sets the internal comparator reference, typically 10.0 V at VCC = 15 V and 3.3 V at VCC = 5 V."
      },
      {
        "number": "6",
        "name": "Thres",
        "type": "input",
        "description": "Threshold input for the internal comparator, typically 10.0 V at VCC = 15 V and 3.3 V at VCC = 5 V, with a threshold current of 250 nA max at VCC = 15 V."
      },
      {
        "number": "7",
        "name": "Disch",
        "type": "passive",
        "description": "Discharge pin driven by the internal discharge transistor, with a saturation voltage of 140 mV typical and 480 mV max at VCC = 15 V and Idis = 15 mA, and an off-state leakage of 100 nA max."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply: the recommended operating range is 4.5 V to 15 V and the absolute maximum supply voltage is 18 V."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
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        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The pin table (page 2) is a single table headed 'DIP-8/SOP-8/MSOP-8' and no MSOP-8-specific pin draw; Pin types for Cont (5) and Disch (7) are judgment calls: the datasheet does not classify them, and D; The datasheet gives no electrical limit for GND, so the description is functional only."
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        "at": "2026-10-19T02:28:51"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
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        "total": 8,
        "described": 8,
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  "metadata": {
    "specs": {
      "Manufacturer": "HANSCHIP semiconductor",
      "Package": "MSOP-8",
      "Category": "Clock/Timing",
      "Pins": "8"
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        {
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          "max": 2,
          "conditions": "TA=25℃; VCC=15V, VTRIG=0V",
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        {
          "name": "Reset high voltage VRESETH",
          "symbol": "VRESETH",
          "kind": "electrical",
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          "typ": null,
          "max": null,
          "conditions": "TA=25℃; VCC=5V",
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          "source": "datasheet"
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        {
          "name": "Reset low voltage VRESETL",
          "symbol": "VRESETL",
          "kind": "electrical",
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          "conditions": "TA=25℃; VCC=5V",
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        {
          "name": "Reset current IRESET",
          "symbol": "IRESET",
          "kind": "electrical",
          "unit": "mA",
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          "max": 0.4,
          "conditions": "TA=25℃; VRESET=0.4V, VCC=15V",
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        {
          "name": "Reset current IRESET",
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          "conditions": "TA=25℃; VRESET=0V, VCC=15V",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "Output low voltage VOL",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.02,
          "max": 0.25,
          "conditions": "TA=25℃; VCC=15V, IL=-5mA",
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          "name": "Output low voltage VOL",
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          "conditions": "TA=25℃; VCC=15V, IL=-50mA",
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          "name": "Output low voltage VOL",
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          "conditions": "TA=25℃; VCC=15V, IL=-100mA",
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          "name": "Output low voltage VOL",
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          "conditions": "TA=25℃; VCC=5V, IL=-8mA",
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          "name": "Output high voltage VOH",
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          "conditions": "TA=25℃; VCC=15V, IL=-100mA",
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          "name": "Output high voltage VOH",
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          "max": null,
          "conditions": "TA=25℃; VCC=5V, IL=-100mA",
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          "name": "Discharge off leakage current Idis(off)",
          "symbol": "Idis(off)",
          "kind": "electrical",
          "unit": "nA",
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          "conditions": "TA=25℃; VO=VOH, Vdis=10V",
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          "name": "Discharge saturation voltage Vdis(sat)",
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          "name": "Output rise time tR",
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          "kind": "timing",
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          "conditions": "TA=25℃; CL=15pF",
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          "name": "Output fall time tF",
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          "conditions": "TA=25℃; CL=15pF",
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          "kind": "electrical",
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          "typ": null,
          "max": 10,
          "conditions": "TA=25℃; VCC=15V (note 1)",
          "source_page": 4,
          "source": "datasheet"
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          "name": "Maximum timing resistance sum RA+RB",
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          "conditions": "TA=25℃; VCC=5V (note 1)",
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          "source": "datasheet"
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          "name": "Output low voltage VOL",
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          "typ": 2.8,
          "max": null,
          "conditions": "TA=25℃; VCC=15V, IL=-200mA",
          "source_page": 4,
          "source": "datasheet"
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          "name": "Output high voltage VOH",
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          "kind": "electrical",
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          "typ": 12.2,
          "max": null,
          "conditions": "TA=25℃; VCC=15V, IL=-200mA",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "Timing error monostable initial error Ts",
          "symbol": "Ts",
          "kind": "tolerance",
          "unit": "%",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "TA=25℃; VCC=15V, RA=2kΩ至100kΩ, C=0.1uF",
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        {
          "name": "Timing error monostable supply drift Tv",
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          "unit": "%/V",
          "min": null,
          "typ": 0.1,
          "max": null,
          "conditions": "TA=25℃; 4.5V～15V",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "Timing error monostable temperature drift Tt",
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          "kind": "temperature_coefficient",
          "unit": "ppm℃",
          "min": null,
          "typ": 150,
          "max": null,
          "conditions": "TA=25℃; VCC=15V, 0～60℃",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "Timing error astable initial error Ts",
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          "kind": "tolerance",
          "unit": "%",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "TA=25℃; VCC=15V, RA、RB=1kΩ至100kΩ, C=0.1uF",
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          "name": "Timing error astable supply drift Tv",
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          "conditions": "TA=25℃; 4.5V～15V",
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          "name": "Timing error astable temperature drift Tt",
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