# ISO35MDWR

**Texas Instruments** · Isolated RS-485/422 Transceivers · SOIC-16-300mil

ISO35MDWR 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 | Logic side power supply pin for side 1 of the isolator. |
| 2 | GND1 | power_in | Logic side ground, internally connected to pins 7 and 8. |
| 3 | R | output | Receiver output. |
| 4 | RE | input | Receiver logic-low enable input. |
| 5 | DE | input | Driver logic-high enable input. |
| 6 | D | input | Driver input. |
| 7 | GND1 | power_in | Logic side ground, internally connected to pins 2 and 8. |
| 8 | GND1 | power_in | Logic side ground, internally connected to pins 2 and 7. |
| 9 | GND2 | power_in | Bus side ground, internally connected to pins 10 and 15. |
| 10 | GND2 | power_in | Bus side ground, internally connected to pins 9 and 15. |
| 11 | Y | output | Noninverting bus output (ISO35x only; this pin is NC on the ISO15x). |
| 12 | Z | output | Inverting bus output (ISO35x only; this pin is NC on the ISO15x). |
| 13 | B | input | Inverting bus input on the ISO35x, which is an input only, not a driver output. |
| 14 | A | input | Noninverting bus input on the ISO35x, which is an input only, not a driver output. |
| 15 | GND2 | power_in | Bus side ground, internally connected to pins 9 and 10. |
| 16 | VCC2 | power_in | Bus side power supply pin for side 2 of the isolator. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-16-300mil |
| Category | Signal Isolation Devices |
| Pins | 16 |

## CAD (KiCad official)

- Symbol: `ISO35MDWR`
- Footprint: `Package_SO:SOIC-16_3.9x9.9mm_P1.27mm`
- 3D model: SOIC-16-300mil (KiCad packages3D, STEP)
- 3D model files: `iso35mdwr-etched.step` / `iso35mdwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `iso35mdwr.step` / `iso35mdwr.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/iso35) (32 pp, sha256 `264903a90280244c`, retrieved 2026-10-08, 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`, primary `claude-haiku-5-5` (text), consensus `claude-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).

[Datasheet PDF](docs/iso35mdwr-datasheet.pdf)