component
SI8645BC-B-IS1
Public Made by Adomby adom
Skyworks Solutions Digital Isolators, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"slug": "si8645bc-b-is1",
"version": "0.1.0",
"type": "component",
"description": "Skyworks Solutions Digital Isolators, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"signal isolation devices",
"si8645bc-b-is1",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"si8645bc-b-is1.kicad_sym",
"si8645bc-b-is1.kicad_mod",
"si8645bc-b-is1.glb",
"si8645bc-b-is1.step",
"si8645bc-b-is1.lbr",
"docs/hero.png",
"docs/si8645bc-b-is1-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"si8645bc-b-is1-hero.glb",
"si8645bc-b-is1-hero.overlay.json",
"si8645bc-b-is1-etched.glb"
],
"component": {
"mpn": "SI8645BC-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": "si8645bc-b-is1.kicad_sym",
"footprint": "si8645bc-b-is1.kicad_mod",
"model_3d": "si8645bc-b-is1-hero.glb",
"model_3d_plain": "si8645bc-b-is1-etched.glb",
"model_3d_step": "si8645bc-b-is1-etched.step",
"model_3d_step_plain": "si8645bc-b-is1.step",
"lbr": "si8645bc-b-is1.lbr"
},
"distributor_links": {
"lcsc": "C7010892",
"digikey": "336-2097-5-ND",
"mouser": "634-SI8645BC-B-IS1"
},
"distributor_check": {
"checked_at": "2026-10-31T02:05:38Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "336-2097-5-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "634-SI8645BC-B-IS1",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "VDD1",
"type": "power_in",
"description": "Side 1 power supply; the device operates from 2.5 to 5.5 V and requires a 0.1 µF bypass capacitor between VDD1 and GND1."
},
{
"number": "2",
"name": "GND1",
"type": "power_in",
"description": "Side 1 ground, which must be externally connected to the respective ground on narrow-body devices."
},
{
"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 Si8645; the pin is 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, which must be externally connected to the respective ground on narrow-body devices."
},
{
"number": "9",
"name": "GND2",
"type": "power_in",
"description": "Side 2 ground, which must be connected to external ground on narrow-body devices."
},
{
"number": "10",
"name": "EN2/NC",
"type": "unconnected",
"description": "No connect on Si8645; the pin is not internally connected and can be left floating, tied to VDD, or tied to GND."
},
{
"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, which must be connected to external ground on narrow-body devices."
},
{
"number": "16",
"name": "VDD2",
"type": "power_in",
"description": "Side 2 power supply; the device operates from 2.5 to 5.5 V and requires a 0.1 µF bypass capacitor between VDD2 and 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: SI8645BC-B-IS1 is listed in the Ordering Guide (page 3) as a 3.75 kV NB SOIC-16 part with 4 VDD1-sid; The pin table on page 29 is shared across the SOIC-16 variants. Pin 7 (EN1/NC) and pin 10 (EN2/NC) a; The datasheet does not state a per-pin voltage or current limit beyond the general supply range and "
],
"pages_sent": 23,
"cost_usd": 0.1061,
"at": "2026-10-31T02:05:24"
},
"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": "si8645bc-b-is1.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6.0,
9.9,
1.75
],
"zmin_mm": -0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",
"checked": "2026-10-31",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "si8645bc-b-is1-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6.0,
9.9,
1.75
],
"zmin_mm": -0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "69c392a02e54fc2b48bfea5c52bcb2826ddb995b1a837212af999dcdfec0d04c",
"checked": "2026-10-31",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
],
"package_dims": {
"package_code": "NB SOIC-16",
"source_page": 35,
"D": {
"nom_mm": 9.9,
"range_mm": [
null,
null
]
},
"E1": {
"nom_mm": 3.9,
"range_mm": [
null,
null
]
},
"E": {
"nom_mm": 6.0,
"range_mm": [
null,
null
]
},
"e": {
"nom_mm": 1.27,
"range_mm": [
null,
null
]
},
"A": {
"nom_mm": 1.75,
"range_mm": [
null,
1.75
]
},
"source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
"model_check": {
"file": "si8645bc-b-is1.step",
"verdict": "PASS",
"reasons": [
"height and body within the datasheet's package drawing"
],
"by": "factory/package_fit.py"
}
}
}
}