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NSI8221N1-DSPR
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NOVOSENSE Digital Isolators, SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+50@@ -0,0 +1,50 @@+# NSI8221N1-DSPR++**NOVOSENSE** · Digital Isolators · SOP-8++NSI8221N1-DSPR from NOVOSENSE, in a SOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | VDD1 | power_in | Power supply for isolator side 1. Operating range 2.5 V to 5.5 V referenced to GND1. Bypass to GND1 with a low-ESR ceramic capacitor placed close to the pin. |+| 2 | OUTA | output | Logic output of channel A on isolator side 1. Receives the digital signal transmitted across the isolation barrier from INA on side 2. CMOS output referenced to VDD1/GND1. |+| 3 | INB | input | Logic input of channel B on isolator side 1. Drives the digital signal transmitted across the isolation barrier to OUTB on side 2. CMOS input referenced to VDD1/GND1. |+| 4 | GND1 | power_in | Ground reference for isolator side 1. Return for VDD1, OUTA, and INB. |+| 5 | GND2 | power_in | Ground reference for isolator side 2. Return for VDD2, INA, and OUTB. Isolated from GND1 by the internal capacitive barrier. |+| 6 | OUTB | output | Logic output of channel B on isolator side 2. Receives the digital signal transmitted across the isolation barrier from INB on side 1. CMOS output referenced to VDD2/GND2. |+| 7 | INA | input | Logic input of channel A on isolator side 2. Drives the digital signal transmitted across the isolation barrier to OUTA on side 1. CMOS input referenced to VDD2/GND2. |+| 8 | VDD2 | power_in | Power supply for isolator side 2. Operating range 2.5 V to 5.5 V referenced to GND2. Bypass to GND2 with a low-ESR ceramic capacitor placed close to the pin. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | NOVOSENSE |+| Package | SOP-8 |+| Category | Comm/UART |+| Pins | 8 |++## Ordering variants++- `NSi8221N1-DSPR`+- `NSI8221N1-DSPRNSi8221W1-DSWVR`+- `NSI8221N1-DSPRNSi8221W1-DSWR`+- `NSI8221N1-DSPRNSi8221W1-DSWWR`++## CAD (KiCad official)++- Symbol: `NSI8221N1-DSPR`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOP-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [NOVOSENSE datasheet](docs/nsi8221n1-dspr-datasheet.pdf) (41 pp, sha256 `6c904c0e109fd57e`, retrieved 2026-08-17, tier: lcsc)+- **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/nsi8221n1-dspr-datasheet.pdf)
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