component
CA-IS3721LG
Public Made by Adomby adom
Chipanalog Digital Isolators, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
Ray
Publish 0.1.0
d53fd55
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{
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"version": "0.1.0",
"type": "component",
"description": "Chipanalog Digital Isolators, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"communication interface chip-uart-485-232",
"ca-is3721lg",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"ca-is3721lg.kicad_sym",
"ca-is3721lg.kicad_mod",
"ca-is3721lg.glb",
"ca-is3721lg.step",
"ca-is3721lg.lbr",
"docs/hero.png",
"docs/ca-is3721lg-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"ca-is3721lg-hero.glb",
"ca-is3721lg-hero.overlay.json",
"ca-is3721lg-etched.glb"
],
"component": {
"mpn": "CA-IS3721LG",
"manufacturer": "Chipanalog",
"package": "SOIC-8",
"pin_count": 8,
"category": "Communication Interface Chip/UART/485/232",
"subcategory": "Digital Isolators",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/1f93ce9099eee71a46d9ac7c52c62950.pdf",
"parts": {
"symbol": "ca-is3721lg.kicad_sym",
"footprint": "ca-is3721lg.kicad_mod",
"model_3d": "ca-is3721lg-hero.glb",
"model_3d_plain": "ca-is3721lg-etched.glb",
"model_3d_step": "ca-is3721lg-etched.step",
"model_3d_step_plain": "ca-is3721lg.step",
"lbr": "ca-is3721lg.lbr"
},
"distributor_links": {
"lcsc": "C7420568"
},
"distributor_check": {
"checked_at": "2026-11-05T15:14:27Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
},
"mouser": {
"pn": null,
"status": "no match"
}
},
"pins": [
{
"number": "1",
"name": "VDDA",
"type": "power_in",
"description": "Side A supply voltage; the recommended operating range is 2.375 V to 5.5 V with 3.3 V typical."
},
{
"number": "2",
"name": "VI1",
"type": "input",
"description": "Side A logic input for channel 1 on the CA-IS3721; it is TTL-compatible with VIH minimum 2.0 V and VIL maximum 0.8 V."
},
{
"number": "3",
"name": "VO2",
"type": "output",
"description": "Side A logic output for channel 2 on the CA-IS3721 (reverse-direction channel); recommended IOH is -4 mA and IOL is 4 mA at 5 V (-2 mA / 2 mA at 3.3 V, -1 mA / 1 mA at 2.5 V)."
},
{
"number": "4",
"name": "GNDA",
"type": "power_in",
"description": "Side A ground reference point; all Side A signal and supply voltages are referenced to this pin."
},
{
"number": "5",
"name": "GNDB",
"type": "power_in",
"description": "Side B ground reference point, isolated from GNDA by the isolation barrier; all Side B signal and supply voltages are referenced to this pin."
},
{
"number": "6",
"name": "VI2",
"type": "input",
"description": "Side B logic input for channel 2 on the CA-IS3721; it is TTL-compatible with VIH minimum 2.0 V and VIL maximum 0.8 V."
},
{
"number": "7",
"name": "VO1",
"type": "output",
"description": "Side B logic output for channel 1 on the CA-IS3721; recommended IOH is -4 mA and IOL is 4 mA at 5 V (-2 mA / 2 mA at 3.3 V, -1 mA / 1 mA at 2.5 V)."
},
{
"number": "8",
"name": "VDDB",
"type": "power_in",
"description": "Side B supply voltage; the recommended operating range is 2.375 V to 5.5 V with 3.3 V typical."
}
],
"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: The CA-IS3721 8-pin figure in the extracted text is scrambled (pin rows and the part label are out o; The package hint 'SOIC-8' is ambiguous. CA-IS3721LG maps to SOIC8-WB (G) per the ordering table; the; Output drive limits are quoted from the recommended operating conditions table (page 6); the datashe"
],
"pages_sent": 25,
"cost_usd": 0.107,
"at": "2026-11-05T15:14:14"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/1f93ce9099eee71a46d9ac7c52c62950.pdf",
"pages": 25,
"sha256": "700fbcc87277736d",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 8,
"described": 8,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
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"footprint": "viewers/footprint.html"
},
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"extents_mm": [
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"zmin_mm": -0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
"checked": "2026-11-05",
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{
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"sha256": "1ca0a9c17a8762c2418d4234f0def53cb599c3c080d9d6f7efd30b5fd58b26f4",
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}