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Ray Set visibility: public 708d954 3d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "si8640bc-b-is1",
  "title": "SI8640BC-B-IS1",
  "brief": "Skyworks Solutions Digital Isolators, SOIC-16. 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",
    "signal isolation devices",
    "si8640bc-b-is1",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "SI8640BC-B-IS1",
    "manufacturer": "Skyworks Solutions",
    "package": "SOIC-16",
    "pin_count": 16,
    "category": "Signal Isolation Devices",
    "subcategory": "Digital Isolators",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/a3339d32aa4aeede1445ce4074ede5e6.pdf",
    "parts": {
      "symbol": "si8640bc-b-is1.kicad_sym",
      "footprint": "si8640bc-b-is1.kicad_mod",
      "model_3d": "si8640bc-b-is1-hero.glb",
      "model_3d_plain": "si8640bc-b-is1-etched.glb",
      "model_3d_step": "si8640bc-b-is1-etched.step",
      "model_3d_step_plain": "si8640bc-b-is1.step",
      "lbr": "si8640bc-b-is1.lbr"
    },
    "distributor_links": {
      "lcsc": "C7363494",
      "digikey": "336-2082-5-ND",
      "mouser": "634-SI8640BC-B-IS1"
    },
    "distributor_check": {
      "checked_at": "2026-10-28T16:11:31Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "336-2082-5-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "634-SI8640BC-B-IS1",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VDD1",
        "type": "power_in",
        "description": "Side 1 power supply, operating over 2.5 V to 5.5 V and requiring a 0.1 µF bypass capacitor to GND1 placed as close as possible to the package."
      },
      {
        "number": "2",
        "name": "GND1",
        "type": "power_in",
        "description": "Side 1 ground; on narrow-body devices this pin must be externally connected to the respective ground."
      },
      {
        "number": "3",
        "name": "A1",
        "type": "input",
        "description": "Side 1 digital input."
      },
      {
        "number": "4",
        "name": "A2",
        "type": "input",
        "description": "Side 1 digital input."
      },
      {
        "number": "5",
        "name": "A3",
        "type": "bidirectional",
        "description": "Side 1 digital input or output."
      },
      {
        "number": "6",
        "name": "A4",
        "type": "bidirectional",
        "description": "Side 1 digital input or output."
      },
      {
        "number": "7",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect on Si8640; not internally connected and can be left floating, tied to VDD, or tied to GND."
      },
      {
        "number": "8",
        "name": "GND1",
        "type": "power_in",
        "description": "Side 1 ground; on narrow-body devices this pin must be externally connected to the respective ground."
      },
      {
        "number": "9",
        "name": "GND2",
        "type": "power_in",
        "description": "Side 2 ground; on narrow-body devices this pin must be connected to external ground."
      },
      {
        "number": "10",
        "name": "EN2",
        "type": "input",
        "description": "Side 2 active high enable; when disabled (EN = 0) the output pins are driven into a high-impedance state."
      },
      {
        "number": "11",
        "name": "B4",
        "type": "bidirectional",
        "description": "Side 2 digital input or output."
      },
      {
        "number": "12",
        "name": "B3",
        "type": "bidirectional",
        "description": "Side 2 digital input or output."
      },
      {
        "number": "13",
        "name": "B2",
        "type": "output",
        "description": "Side 2 digital output."
      },
      {
        "number": "14",
        "name": "B1",
        "type": "output",
        "description": "Side 2 digital output."
      },
      {
        "number": "15",
        "name": "GND2",
        "type": "power_in",
        "description": "Side 2 ground; on narrow-body devices this pin must be connected to external ground."
      },
      {
        "number": "16",
        "name": "VDD2",
        "type": "power_in",
        "description": "Side 2 power supply, operating over 2.5 V to 5.5 V and requiring a 0.1 µF bypass capacitor to GND2."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "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: Ordering guide maps SI8640BC-B-IS1 to NB SOIC-16 (Si8640BC-B-IS1). Pin table is the family table for"
        ],
        "pages_sent": 23,
        "cost_usd": 0.0311,
        "at": "2026-10-28T16:11:07"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/a3339d32aa4aeede1445ce4074ede5e6.pdf",
        "pages": 46,
        "sha256": "032aeb8b1ade5e14",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "si8640bc-b-is1.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          9.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "si8640bc-b-is1-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,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "f6207ec0c9a67a75461ed900330042a90870fa4c002014aac97bbcc986956871",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Skyworks Solutions",
      "Package": "SOIC-16",
      "Category": "Signal Isolation Devices",
      "Pins": "16"
    },
    "appearance": {
      "housing": {
        "quote": "4. Recommended card reflow profile is per the JEDEC/IPC J-STD-020 specification for Small Body Components.",
        "page": 35,
        "doc": "ds.pdf",
        "material": "PC"
      },
      "version": 1,
      "datasheet_sha256": "032aeb8b1ade5e14f2be88f4e5c1d6e1e2d432a304f3b05797dcd3e7a1ec07df"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "032aeb8b1ade5e14f2be88f4e5c1d6e1e2d432a304f3b05797dcd3e7a1ec07df",
      "rows": [
        {
          "name": "Supply Voltage",
          "symbol": "VDD1, VDD2",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.375,
          "typ": null,
          "max": 5.5,
          "conditions": "Recommended operating",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Ambient Operating Temperature",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": 25,
          "max": 125,
          "conditions": "Recommended operating",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Junction Operating Temperature",
          "symbol": "TJ",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "Recommended operating",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Supply Voltage",
          "symbol": "VDD1, VDD2",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 7,
          "conditions": "Absolute maximum",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "Input Voltage",
          "symbol": "VI",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": null,
          "conditions": "Max VDD + 0.5",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage",
          "symbol": "VO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": null,
          "conditions": "Max VDD + 0.5",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "Output Current Drive Channel",
          "symbol": "IO",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "Absolute maximum",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "Absolute maximum",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "Junction Temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "Absolute maximum",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "Lead Solder Temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "10 s",
          "source_page": 28,
          "source": "datasheet"
        },
        {
          "name": "VDD Undervoltage Threshold rising",
          "symbol": "VDDUV+",
          "kind": "electrical",
          "unit": "V",
          "min": 1.95,
          "typ": 2.24,
          "max": 2.375,
          "conditions": "VDD1, VDD2 rising",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "VDD Undervoltage Threshold falling",
          "symbol": "VDDUV–",
          "kind": "electrical",
          "unit": "V",
          "min": 1.88,
          "typ": 2.16,
          "max": 2.325,
          "conditions": "VDD1, VDD2 falling",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "VDD Undervoltage Hysteresis",
          "symbol": "VDDHYS",
          "kind": "electrical",
          "unit": "mV",
          "min": 50,
          "typ": 70,
          "max": 95,
          "conditions": "",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Positive-Going Input Threshold",
          "symbol": "VT+",
          "kind": "electrical",
          "unit": "V",
          "min": 1.4,
          "typ": 1.67,
          "max": 1.9,
          "conditions": "All inputs rising",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Negative-Going Input Threshold",
          "symbol": "VT–",
          "kind": "electrical",
          "unit": "V",
          "min": 1,
          "typ": 1.23,
          "max": 1.4,
          "conditions": "All inputs falling",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Input Hysteresis",
          "symbol": "VHYS",
          "kind": "electrical",
          "unit": "V",
          "min": 0.38,
          "typ": 0.44,
          "max": 0.5,
          "conditions": "",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "High Level Input Voltage",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Low Level Input Voltage",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.8,
          "conditions": "",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "High Level Output Voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 4.8,
          "max": null,
          "conditions": "loh = –4 mA; min VDD1, VDD2 – 0.4",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Low Level Output Voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.2,
          "max": 0.4,
          "conditions": "lol = 4 mA",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Input Leakage Current",
          "symbol": "IL",
          "kind": "electrical",
          "unit": "µA",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "Si864xxA/B/C/D",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Output Impedance",
          "symbol": "ZO",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 50,
          "max": null,
          "conditions": "",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "DC Supply Current VDD1",
          "symbol": "IDD1",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1,
          "max": 1.6,
          "conditions": "Si8640Bx, Ex; VI = 0(Bx), 1(Ex)",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "DC Supply Current VDD2",
          "symbol": "IDD2",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 2.4,
          "max": 3.8,
          "conditions": "Si8640Bx, Ex; VI = 0(Bx), 1(Ex)",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "DC Supply Current VDD1",
          "symbol": "IDD1",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 6.1,
          "max": 9.2,
          "conditions": "Si8640Bx, Ex; VI = 1(Bx), 0(Ex)",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "DC Supply Current VDD2",
          "symbol": "IDD2",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 2.5,
          "max": 4,
          "conditions": "Si8640Bx, Ex; VI = 1(Bx), 0(Ex)",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "1 Mbps Supply Current VDD1",
          "symbol": "IDD1",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 3.6,
          "max": 5,
          "conditions": "Si8640Bx, Ex; all inputs 500 kHz square wave, CI = 15 pF",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "1 Mbps Supply Current VDD2",
          "symbol": "IDD2",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 2.9,
          "max": 4,
          "conditions": "Si8640Bx, Ex; all inputs 500 kHz square wave, CI = 15 pF",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "10 Mbps Supply Current VDD1",
          "symbol": "IDD1",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 3.6,
          "max": 5,
          "conditions": "Si8640xA/B/C/D; all inputs 5 MHz square wave, CI = 15 pF",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "10 Mbps Supply Current VDD2",
          "symbol": "IDD2",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 4,
          "max": 5.6,
          "conditions": "Si8640xA/B/C/D; all inputs 5 MHz square wave, CI = 15 pF",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "100 Mbps Supply Current VDD1",
          "symbol": "IDD1",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 3.6,
          "max": 5,
          "conditions": "Si8640xA/B/C/D; all inputs 50 MHz square wave, CI = 15 pF",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "100 Mbps Supply Current VDD2",
          "symbol": "IDD2",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 17.5,
          "max": 22.8,
          "conditions": "Si8640xA/B/C/D; all inputs 50 MHz square wave, CI = 15 pF",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "Maximum Data Rate",
          "symbol": "",
          "kind": "timing",
          "unit": "Mbps",
          "min": 0,
          "typ": null,
          "max": 150,
          "conditions": "Si864xBx, Ex",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "Minimum Pulse Width",
          "symbol": "",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "Si864xBx, Ex",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "Propagation Delay",
          "symbol": "tPHL, tPLH",
          "kind": "timing",
          "unit": "ns",
          "min": 5,
          "typ": 8,
          "max": 13,
          "conditions": "See Figure 4.2",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "Pulse Width Distortion",
          "symbol": "PWD",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 0.2,
          "max": 4.5,
          "conditions": "|tPLH – tPHL|; see Figure 4.2",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "Propagation Delay Skew",
          "symbol": "tPSK(P-P)",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 2,
          "max": 4.5,
          "conditions": "",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "Channel-Channel Skew",
          "symbol": "tPSK",
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