# ISO3088DW

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

ISO3088DW 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 VCC1, recommended operating range 3.15 V to 5.5 V. |
| 2 | GND1 | power_in | Ground connection for VCC1 (logic side). |
| 3 | R | output | Receiver output. |
| 4 | RE | input | Receiver enable: disables the receiver output when high or open, enables it when low. |
| 5 | DE | input | Driver enable: enables the driver output when high, disables it when low or open. |
| 6 | D | input | Driver input; the recommended high-level input voltage is 2 V to VCC and the low-level input voltage is 0 V to 0.8 V. |
| 7 | GND1 | power_in | Ground connection for VCC1 (logic side). |
| 8 | GND1 | power_in | Ground connection for VCC1 (logic side). |
| 9 | GND2 | power_in | Ground connection for VCC2 (bus side). |
| 10 | GND2 | power_in | Ground connection for VCC2 (bus side). |
| 11 | NC | unconnected | No connect. |
| 12 | A | bidirectional | Transceiver noninverting input or output (I/O) on the bus side; bus I/O voltage range is -7 V to 12 V. |
| 13 | B | bidirectional | Transceiver inverting input or output (I/O) on the bus side; bus I/O voltage range is -7 V to 12 V. |
| 14 | NC | unconnected | No connect. |
| 15 | GND2 | power_in | Ground connection for VCC2 (bus side). |
| 16 | VCC2 | power_in | Bus-side power supply VCC2, recommended operating range 4.5 V to 5.5 V. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `ISO3088DW`
- Footprint: `Package_SO:SOIC-16_3.9x9.9mm_P1.27mm`
- 3D model: SOIC-16-300mil (KiCad packages3D, STEP)
- 3D model files: `iso3088dw-etched.step` / `iso3088dw-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `iso3088dw.step` / `iso3088dw.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/lit/ds/symlink/iso3088.pdf) (34 pp, sha256 `2ca3167f7160d4ed`, retrieved 2026-10-11, tier: lcsc)
- **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/iso3088dw-datasheet.pdf)