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ISO6731DWR
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.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownISO6731DWR
Texas Instruments · Digital Isolators · SOIC-16-300mil
ISO6731DWR 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 input-side circuits; rated 1.71 V to 1.89 V (1.8 V mode) or 2.25 V to 5.5 V (2.5/3.3/5 V modes) |
| 2 | GND1 | power_in | Ground connection for input-side supply VCC1 |
| 3 | INA | input | Input for channel A; accepts high level ≥ 0.7 × VCCI and low level ≤ 0.3 × VCCI |
| 4 | INB | input | Input for channel B; accepts high level ≥ 0.7 × VCCI and low level ≤ 0.3 × VCCI |
| 5 | OUTC | output | Output for channel C; produces high level ≥ VCCO − 0.4 V (5 V supply) and low level ≤ 0.4 V |
| 6 | NC | unconnected | Not connected to any internal circuit |
| 7 | EN1 | input | Output enable for side 1; outputs enabled when high or open, forced to high impedance when low |
| 8 | GND1 | power_in | Ground connection for input-side supply VCC1 |
| 9 | GND2 | power_in | Ground connection for output-side supply VCC2 |
| 10 | EN2 | input | Output enable for side 2; outputs enabled when high or open, forced to high impedance when low |
| 11 | NC | unconnected | Not connected to any internal circuit |
| 12 | INC | input | Input for channel C; accepts high level ≥ 0.7 × VCCI and low level ≤ 0.3 × VCCI |
| 13 | OUTB | output | Output for channel B; produces high level ≥ VCCO − 0.4 V (5 V supply) and low level ≤ 0.4 V |
| 14 | OUTA | output | Output for channel A; produces high level ≥ VCCO − 0.4 V (5 V supply) and low level ≤ 0.4 V |
| 15 | GND2 | power_in | Ground connection for output-side supply VCC2 |
| 16 | VCC2 | power_in | Power supply for output-side circuits; rated 1.71 V to 1.89 V (1.8 V mode) or 2.25 V to 5.5 V (2.5/3.3/5 V modes) |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-16-300mil |
| Category | Signal Isolation Devices |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
ISO6731DWR - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOIC-16-300mil (KiCad packages3D, STEP)
- 3D model files:
iso6731dwr-etched.step/iso6731dwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);iso6731dwr.step/iso6731dwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (40 pp, sha256
b2b405c5e9b1bff2, retrieved 2026-09-27, 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 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(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).