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Contents

README

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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 (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