component
ISO1644DWR
Public Made by Adomby adom
Texas Instruments I2C Isolators, SOIC-16. Datasheet-verified pinout, 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
markdownISO1644DWR
Texas Instruments · I2C Isolators · SOIC-16
ISO1644DWR from Texas Instruments, in a SOIC-16. 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 | VCC1 | power_in | Supply voltage for side 1, recommended operating range 3.0 V to 5.5 V. |
| 2 | GND1 | power_in | Ground reference for isolation side 1. |
| 3 | SDA1 | bidirectional | Bidirectional serial data input/output for side 1 with maximum capacitive load 80 pF. |
| 4 | INA | input | Unidirectional GPIO input channel A supporting 50 Mbps maximum data rate. |
| 5 | INB | input | Unidirectional GPIO input channel B supporting 50 Mbps maximum data rate. |
| 6 | SCL1 | bidirectional | Bidirectional serial clock input/output for side 1 with maximum capacitive load 80 pF. |
| 7 | OUTC | output | Unidirectional GPIO output channel C supporting 50 Mbps maximum data rate. |
| 8 | GND1 | power_in | Ground reference for isolation side 1. |
| 9 | GND2 | power_in | Ground reference for isolation side 2. |
| 10 | INC | input | Unidirectional GPIO input channel C supporting 50 Mbps maximum data rate. |
| 11 | SCL2 | bidirectional | Bidirectional serial clock input/output for side 2 with maximum capacitive load 400 pF. |
| 12 | OUTB | output | Unidirectional GPIO output channel B supporting 50 Mbps maximum data rate. |
| 13 | OUTA | output | Unidirectional GPIO output channel A supporting 50 Mbps maximum data rate. |
| 14 | SDA2 | bidirectional | Bidirectional serial data input/output for side 2 with maximum capacitive load 400 pF. |
| 15 | GND2 | power_in | Ground reference for isolation side 2. |
| 16 | VCC2 | power_in | Supply voltage for side 2, recommended operating range 2.25 V to 5.5 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-16 |
| Category | Signal Isolation Devices |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
ISO1644DWR - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOIC-16 (KiCad packages3D, STEP)
- 3D model files:
iso1644dwr-etched.step/iso1644dwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);iso1644dwr.step/iso1644dwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (58 pp, sha256
5dc75560d1771a01, retrieved 2026-09-18, tier: lcsc) - 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).