ISO6721

@@ -0,0 +1,52 @@+# ISO6721++**Texas Instruments** · Digital isolator · SOIC-8++Passes two logic signals across a galvanic barrier, one in each direction, with each side on its own supply and ground. The silicon-dioxide capacitive barrier isolates them while data crosses at up to 100 Mbps, and its low per-channel current makes it a power-frugal choice for isolated SPI, UART, and control links. The narrow SOIC-8 is rated 3 kVrms. Built on the same isolation core as the ISO67xx family, it is a smaller, lower-power alternative to the ISO7721.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | VCC1 | power_in | Side-1 power supply, 1.71 V to 5.5 V referenced to GND1. |+| 2 | OUTA | output | Isolated push-pull digital output for channel A (driven by INA on side 2), CMOS/LVCMOS levels referenced to VCC1/GND1. |+| 3 | INB | input | Digital input for channel B, CMOS/LVCMOS levels referenced to VCC1/GND1. |+| 4 | GND1 | power_in | Ground return for VCC1 (side 1). |+| 5 | GND2 | power_in | Ground return for VCC2 (side 2). |+| 6 | OUTB | output | Isolated push-pull digital output for channel B (driven by INB on side 1), CMOS/LVCMOS levels referenced to VCC2/GND2. |+| 7 | INA | input | Digital input for channel A, CMOS/LVCMOS levels referenced to VCC2/GND2. |+| 8 | VCC2 | power_in | Side-2 power supply, 1.71 V to 5.5 V referenced to GND2. |++## Key specifications++| Parameter | Value |+|---|---|+| Type | Dual-channel digital isolator (1 forward + 1 reverse) |+| Isolation | 3000 Vrms (SOIC-8) |+| Data rate | Up to 100 Mbps |+| CMTI | 100 kV/us (typ) |+| Supply (each side) | 1.71-5.5 V |+| Default output | High or low (part suffix) |+| Package | SOIC-8 |++## Ordering variants++- `ISO6721BDR (SOIC-8, default-high)`+- `ISO6721DR (basic isolation)`+- `ISO6721FDR (default-low)`++## CAD (KiCad official)++- Symbol: `Isolator:ISO6721BD (KiCad official)`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOIC-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/iso6721.pdf) (48 pp, sha256 `b4ed1e5c2b8d5587`, retrieved 2026-08-17, tier: manufacturer)+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/iso6721-datasheet.pdf)

@@ -0,0 +1,37 @@+{+  "slug": "iso6721",+  "version": "0.1.0",+  "type": "component",+  "description": "TI dual-channel digital isolator, SOIC-8. One forward + one reverse channel, 3 kVrms, up to 100 Mbps, low power. Datasheet-verified.",+  "tags": [+    "component",+    "interface",+    "digital-isolator",+    "galvanic-isolation",+    "soic-8",+    "texas-instruments"+  ],+  "dependencies": {},+  "hero": {+    "type": "image",+    "path": "docs/hero.png"+  },+  "files": [+    "page.json",+    "README.md",+    "iso6721.kicad_sym",+    "iso6721.kicad_mod",+    "iso6721.glb",+    "iso6721.step",+    "iso6721.lbr",+    "docs/hero.png",+    "docs/iso6721-datasheet.pdf",+    "viewers/symbol.html",+    "viewers/footprint.html"+  ],+  "visibility": "public",+  "author": {+    "name": "Ray",+    "email": "[email protected]"+  }+}\ No newline at end of file