component
ISO7221
Public Made by Adomby adom
TI dual-channel digital isolator, SOIC-8. Galvanic isolation, one channel each direction, up to 150 Mbps. Datasheet-verified.
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component page: CAD + datasheet-first provenance (official mfr datasheet)
1 file changed
+122−8
page.json+122−8@@ -1,8 +1,11 @@ {+ "schema_version": 1,+ "type": "component", "slug": "iso7221",+ "title": "ISO7221",+ "brief": "TI dual-channel digital isolator, SOIC-8. Galvanic isolation, one channel each direction, up to 150 Mbps. Datasheet-verified.", "version": "0.1.0",- "type": "component",- "description": "TI dual-channel digital isolator, SOIC-8. Galvanic isolation, one channel each direction, up to 150 Mbps. Datasheet-verified.",+ "license": "CC-BY-SA-4.0", "tags": [ "component", "interface",@@ -11,6 +14,122 @@ "soic-8", "texas-instruments" ],+ "component": {+ "mpn": "ISO7221",+ "manufacturer": "Texas Instruments",+ "package": "SOIC-8",+ "pin_count": 8,+ "category": "Interface IC",+ "subcategory": "2-channel digital isolator",+ "datasheet": "https://www.ti.com/lit/ds/symlink/iso7221c.pdf",+ "parts": {+ "symbol": "iso7221.kicad_sym",+ "footprint": "iso7221.kicad_mod",+ "model_3d": "iso7221.glb"+ },+ "distributor_links": {},+ "pins": [+ {+ "number": "1",+ "name": "VCC1",+ "type": "power_in",+ "description": "Power supply for side 1 (input for channel A, output for channel B). 2.8 V / 3.3 V / 5 V; independently referenced to GND1. Decouple locally with a 0.1 \u00b5F ceramic near the pin."+ },+ {+ "number": "2",+ "name": "OUTA",+ "type": "output",+ "description": "Buffered CMOS output of channel A on side 1 of the isolation barrier (isolated copy of INA on side 2). 4 mA drive; output high/low tracks VCC1."+ },+ {+ "number": "3",+ "name": "INB",+ "type": "input",+ "description": "Digital input of channel B on side 1. A-, B-, and C-option devices apply a TTL input threshold (VIH \u2265 2 V, VIL \u2264 0.8 V) with input noise filtering; M-option uses a CMOS threshold (0.7\u00b7VCC / 0.3\u00b7VCC). If undriven for >4 \u00b5s the failsafe drives the isolated output high."+ },+ {+ "number": "4",+ "name": "GND1",+ "type": "power_in",+ "description": "Ground reference for side 1 (VCC1 domain). Galvanically isolated from GND2 by the SiO\u2082 barrier."+ },+ {+ "number": "5",+ "name": "GND2",+ "type": "power_in",+ "description": "Ground reference for side 2 (VCC2 domain). Galvanically isolated from GND1 by the SiO\u2082 barrier."+ },+ {+ "number": "6",+ "name": "OUTB",+ "type": "output",+ "description": "Buffered CMOS output of channel B on side 2 (isolated copy of INB on side 1). 4 mA drive; output high/low tracks VCC2."+ },+ {+ "number": "7",+ "name": "INA",+ "type": "input",+ "description": "Digital input of channel A on side 2. A-, B-, and C-option devices use TTL thresholds with input noise filtering; M-option uses CMOS thresholds. Failsafe forces the isolated output high when INA is undriven for >4 \u00b5s."+ },+ {+ "number": "8",+ "name": "VCC2",+ "type": "power_in",+ "description": "Power supply for side 2 (input for channel A, output for channel B). 2.8 V / 3.3 V / 5 V; independently referenced to GND2. Decouple locally with a 0.1 \u00b5F ceramic near the pin."+ }+ ],+ "provenance": {+ "extractor": "ds2sf",+ "datasheet": {+ "url": "https://www.ti.com/lit/ds/symlink/iso7221c.pdf",+ "pages": 39,+ "sha256": "b74a541cca2d68e0",+ "source_tier": "mfr"+ },+ "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"+ }+ },+ "metadata": {+ "specs": {+ "Type": "2-channel digital isolator",+ "Channels": "2 (one each direction)",+ "Isolation": "~2.5 kVrms barrier (capacitive)",+ "Data rate": "up to 150 Mbps (by grade)",+ "Supplies": "VCC1 + VCC2 (independent)",+ "Advantage": "faster + longer-life than optocoupler",+ "Supply voltage": "3.3-5 V each side",+ "Package": "SOIC-8"+ }+ },+ "sections": [+ "hero",+ "viewers",+ "readme",+ "breadcrumbs",+ "info"+ ],+ "discovery_triggers": [+ "iso7221",+ "digital isolator",+ "galvanic isolation",+ "signal isolator",+ "opto replacement"+ ],+ "discovery_pitch": "ISO7221 2-channel digital isolator (SOIC-8) with datasheet-verified pinout, KiCad symbol/footprint/3D, and full provenance.",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }, "dependencies": {}, "hero": { "type": "image",@@ -26,10 +145,5 @@ "docs/iso7221-datasheet.pdf", "viewers/symbol.html", "viewers/footprint.html"- ],- "visibility": "public",- "author": {- "name": "Ray",- "email": "[email protected]"- }+ ] }