# ISO1430BDWR

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

ISO1430BDWR 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 supply; recommended VCC1 is 1.71 V to 1.89 V for 1.8 V operation and 2.25 V to 5.5 V for 2.5 V, 3.3 V and 5 V operation. |
| 2 | GND1 | power_in | Logic-side ground connection for VCC1; pin 2 and pin 8 must both be connected to GND1. |
| 3 | R | output | Receiver output to the logic side; recommended receiver output current is -4 mA to 4 mA. |
| 4 | RE | input | Receiver enable: a low level enables the receiver output, while a high level or an open pin disables it (high impedance). |
| 5 | DE | input | Driver enable: a high level enables the driver outputs, while a low level or an open pin disables them (high impedance). |
| 6 | D | input | Driver data input; high-level input requires at least 0.7 × VCC1 and low-level input must not exceed 0.3 × VCC1. |
| 7 | NC | unconnected | No internal connection; the device function is unaffected if this pin is tied to a supply or ground on the PCB. |
| 8 | GND1 | power_in | Logic-side ground connection for VCC1; pin 8 and pin 2 must both be connected to GND1. |
| 9 | GND2 | power_in | Bus-side ground connection for VCC2; pin 9 and pin 15 must both be connected to GND2. |
| 10 | NC | unconnected | No internal connection; the device function is unaffected if this pin is tied to a supply or ground on the PCB. |
| 11 | NC | unconnected | No internal connection; the device function is unaffected if this pin is tied to a supply or ground on the PCB. |
| 12 | A | bidirectional | Bus-side non-inverting transceiver input or output on the RS-485 bus; bus common-mode voltage is limited to -7 V to 12 V. |
| 13 | B | bidirectional | Bus-side inverting transceiver input or output on the RS-485 bus; bus common-mode voltage is limited to -7 V to 12 V. |
| 14 | NC | unconnected | No internal connection; the device function is unaffected if this pin is tied to a supply or ground on the PCB. |
| 15 | GND2 | power_in | Bus-side ground connection for VCC2; pin 15 and pin 9 must both be connected to GND2. |
| 16 | VCC2 | power_in | Bus-side (receiver side) supply; recommended VCC2 range is 3 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: `ISO1430BDWR`
- Footprint: `Package_SO:SOIC-16_3.9x9.9mm_P1.27mm`
- 3D model: SOIC-16-300mil (KiCad packages3D, STEP)
- 3D model files: `iso1430bdwr-etched.step` / `iso1430bdwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `iso1430bdwr.step` / `iso1430bdwr.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/iso1410) (48 pp, sha256 `ee0c34ba1cd8865f`, 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/iso1430bdwr-datasheet.pdf)