component
ISO7821DWWR
Public Made by Adomby adom
Texas Instruments Digital Isolators, SOIC-16-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 19d ago |
| viewers | 19d ago |
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| iso7821dwwr-etched.step | 19d ago |
| iso7821dwwr-hero.glb | 19d ago |
| iso7821dwwr-hero.overlay.json | 19d ago |
| iso7821dwwr.glb | 19d ago |
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| README.md | 19d ago |
ISO7821DWWR
Texas Instruments · Digital Isolators · SOIC-16-300mil
ISO7821DWWR from Texas Instruments, in a SOIC-16-300mil. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VCC1 | power_in | Power supply for the input side (VCC1), specified at 2.25 V to 5.5 V with a 6 V absolute maximum. |
| 2 | GND1 | power_in | Ground connection for VCC1 (input-side ground). |
| 3 | NC | unconnected | Not connected. |
| 4 | EN1 | input | Output enable 1: side-1 outputs are enabled when EN1 is high or open and are high-impedance when EN1 is low. |
| 5 | OUTA | output | Output, channel A, referenced to the output-side supply VCCO; absolute maximum output current is 15 mA. |
| 6 | INB | input | Input, channel B; logic-high threshold is 0.7 x VCCI minimum and logic-low threshold is 0.3 x VCCI maximum. |
| 7 | NC | unconnected | Not connected. |
| 8 | GND1 | power_in | Ground connection for VCC1 (input-side ground). |
| 9 | GND2 | power_in | Ground connection for VCC2 (output-side ground). |
| 10 | NC | unconnected | Not connected. |
| 11 | OUTB | output | Output, channel B, referenced to the output-side supply VCCO; absolute maximum output current is 15 mA. |
| 12 | INA | input | Input, channel A; logic-high threshold is 0.7 x VCCI minimum and logic-low threshold is 0.3 x VCCI maximum. |
| 13 | EN2 | input | Output enable 2: side-2 outputs are enabled when EN2 is high or open and are high-impedance when EN2 is low. |
| 14 | NC | unconnected | Not connected. |
| 15 | GND2 | power_in | Ground connection for VCC2 (output-side ground). |
| 16 | VCC2 | power_in | Power supply for the output side (VCC2), specified at 2.25 V to 5.5 V with a 6 V absolute maximum. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-16-300mil |
| Category | Signal Isolation Devices |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
ISO7821DWWR - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOIC-16-300mil (KiCad packages3D, STEP)
- 3D model files:
iso7821dwwr-etched.step/iso7821dwwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);iso7821dwwr.step/iso7821dwwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (40 pp, sha256
3646088bef2bbef6, retrieved 2026-10-11, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).