621SDCGI

{
  "schema_version": 1,
  "type": "component",
  "slug": "621sdcgi",
  "title": "621SDCGI",
  "brief": "RENESAS Clock Buffers, Drivers, SOIC-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": [
    "component",
    "rtc-clock chip",
    "621sdcgi",
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  "component": {
    "mpn": "621SDCGI",
    "manufacturer": "RENESAS",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "RTC/Clock Chip",
    "subcategory": "Clock Buffers, Drivers",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/4f542045e600c242f392d9a282548094.pdf",
    "parts": {
      "symbol": "621sdcgi.kicad_sym",
      "footprint": "621sdcgi.kicad_mod",
      "model_3d": "621sdcgi-hero.glb",
      "model_3d_plain": "621sdcgi-etched.glb",
      "model_3d_step": "621sdcgi-etched.step",
      "model_3d_step_plain": "621sdcgi.step",
      "lbr": "621sdcgi.lbr"
    },
    "distributor_links": {
      "lcsc": "C3613603",
      "digikey": "6690-621SDCGI-ND",
      "mouser": "972-621SDCGI"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T12:08:22Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "6690-621SDCGI-ND",
        "status": "found",
        "lifecycle": "Active"
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    },
    "pins": [
      {
        "number": "1",
        "name": "ICLK",
        "type": "input",
        "description": "Clock input with internal pull-up resistor; VIH min 0.7xVDD and VIL max 0.3xVDD (switching threshold VDD/2)."
      },
      {
        "number": "2",
        "name": "Q1",
        "type": "output",
        "description": "Clock output 1, non-inverting, tri-stated when OE is low."
      },
      {
        "number": "3",
        "name": "Q2",
        "type": "output",
        "description": "Clock output 2, non-inverting, tri-stated when OE is low."
      },
      {
        "number": "4",
        "name": "Q3",
        "type": "output",
        "description": "Clock output 3, non-inverting, tri-stated when OE is low."
      },
      {
        "number": "5",
        "name": "Q4",
        "type": "output",
        "description": "Clock output 4, non-inverting, tri-stated when OE is low."
      },
      {
        "number": "6",
        "name": "GND",
        "type": "power_in",
        "description": "Connect to ground; decoupling capacitor of 0.01uF goes between VDD (pin 7) and this pin."
      },
      {
        "number": "7",
        "name": "VDD",
        "type": "power_in",
        "description": "Connect +1.8V, +2.5V or +3.3V (1.71V to 3.465V operating range) with a 0.01uF decoupling capacitor to GND."
      },
      {
        "number": "8",
        "name": "OE",
        "type": "input",
        "description": "Output Enable with internal pull-up resistor; tri-states outputs when low."
      }
    ],
    "provenance": {
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        "primary_model": "claude-sonnet-5-5",
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        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [],
        "pages_sent": 13,
        "cost_usd": 0.0725,
        "at": "2026-10-23T12:08:10"
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        "pages": 13,
        "sha256": "1bcc0eb6007be34b",
        "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
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "621sdcgi.step",
        "role": "plain",
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
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        "zmin_mm": 0,
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        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-23",
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "RENESAS",
      "Package": "SOIC-8",
      "Category": "RTC/Clock Chip",
      "Pins": "8"
    },
    "characteristics": {
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        {
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        {
          "name": "Soldering Temperature",
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        {
          "name": "Nominal Output Impedance (1.8V)",
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        {
          "name": "Input Capacitance (1.8V)",
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          "name": "Operating Voltage (2.5V)",
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          "name": "Output High Voltage (2.5V)",
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        {
          "name": "Output Low Voltage (2.5V)",
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          "source": "datasheet"
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        {
          "name": "Operating Supply Current (2.5V)",
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        {
          "name": "Nominal Output Impedance (2.5V)",
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          "name": "Input Capacitance (2.5V)",
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          "unit": "pF",
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        {
          "name": "Operating Voltage (3.3V)",
          "symbol": "VDD",
          "kind": "electrical",
          "unit": "V",
          "min": 3.135,
          "typ": null,
          "max": 3.465,
          "conditions": "VDD=3.3 V ±5%",
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          "source": "datasheet"
        },
        {
          "name": "Input High Voltage, ICLK (3.3V)",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 3.465,
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        {
          "name": "Output High Voltage (3.3V)",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 2.2,
          "typ": null,
          "max": null,
          "conditions": "IOH = -25 mA",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "Output Low Voltage (3.3V)",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.7,
          "conditions": "IOL = 25 mA",
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          "source": "datasheet"
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        {
          "name": "Operating Supply Current (3.3V)",
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          "typ": null,
          "max": 22,
          "conditions": "No load, 135 MHz",
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          "source": "datasheet"
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        {
          "name": "Nominal Output Impedance (3.3V)",
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          "kind": "electrical",
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          "max": null,
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          "name": "Input Capacitance (3.3V)",
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          "name": "Output Clock Rise Time (1.8V)",
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          "name": "Start-up Time (1.8V)",
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          "conditions": "Part start-up time for valid outputs after VDD ramp-up",
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          "name": "Propagation Delay (1.8V)",
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          "min": 1.5,
          "typ": 2,
          "max": 4,
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          "name": "Buffer Additive Phase Jitter, RMS (1.8V)",
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          "name": "Output to Output Skew (1.8V)",
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          "conditions": "CL < 5pF",
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          "conditions": "5pF load, Note 4",
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          "conditions": "5pF load, Note 4",
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