component
ISO1176TDWR
Public Unreviewedby Ray
Texas Instruments Isolated RS-485/422 Transceivers, SOIC-16-300mil. 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
markdownISO1176TDWR
Texas Instruments · Isolated RS-485/422 Transceivers · SOIC-16-300mil
ISO1176TDWR from Texas Instruments, in a SOIC-16-300mil. 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 | D1 | output | Transformer driver terminal 1 open-drain output for primary-side isolated power supply generation via external transformer. |
| 2 | D2 | output | Transformer driver terminal 2 open-drain output for primary-side isolated power supply generation via external transformer. |
| 3 | GND1 | power_in | Logic-side ground reference (primary side) for control circuitry. |
| 4 | VCC1 | power_in | Logic-side power supply input rated 3V to 5.5V for control circuitry. |
| 5 | R | output | Receiver output logic state representing differential bus input (VA - VB) when receiver enable is active. |
| 6 | RE | input | Receiver enable input with complementary logic; logic low enables receiver, logic high disables to high-impedance. |
| 7 | DE | input | Driver enable input (active high); high enables outputs A and B to follow D, low puts outputs in high-impedance state. |
| 8 | D | input | Driver data input; differential outputs A and B follow this logic state when driver enable is high. |
| 9 | GND2 | power_in | Bus-side ground (secondary isolated side); pins 9, 11, 14, 15 internally connected together. |
| 10 | ISODE | output | Isolated bus-side driver enable output status reflecting DE state across galvanic isolation barrier. |
| 11 | GND2 | power_in | Bus-side ground (secondary isolated side); pins 9, 11, 14, 15 internally connected together. |
| 12 | A | bidirectional | Non-inverting driver output when enabled / receiver input for differential bus pair; connects to bus line A. |
| 13 | B | bidirectional | Inverting driver output when enabled / receiver input for differential bus pair; connects to bus line B. |
| 14 | GND2 | power_in | Bus-side ground (secondary isolated side); pins 9, 11, 14, 15 internally connected together. |
| 15 | GND2 | power_in | Bus-side ground (secondary isolated side); pins 9, 11, 14, 15 internally connected together. |
| 16 | VCC2 | power_in | Bus-side power supply input rated 4.75V to 5.25V for secondary isolated circuitry. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-16-300mil |
| Category | Signal Isolation Devices |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
ISO1176TDWR - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOIC-16-300mil (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (37 pp, sha256
9e1d1785fe792d0a, retrieved 2026-09-17, 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).