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ISO1432DWR

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Texas Instruments Isolated RS-485/422 Transceivers, SOIC-16-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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ISO1432DWR

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

ISO1432DWR 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; the datasheet specifies VCC1 from 1.71 V to 5.5 V (1.71 V to 1.89 V for 1.8 V operation, 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, which drives logic high or low from the bus differential input; the datasheet limits receiver output current to -4 mA to 4 mA.
4 RE input Receiver enable: logic low enables the receiver output, while logic high or an open pin disables it (high impedance).
5 DE input Driver enable: logic high enables the driver outputs, while logic low or an open pin disables them (high impedance).
6 D input Driver data input; the datasheet specifies VIH of 0.7×VCC1 to VCC1 and VIL of 0 to 0.3×VCC1 for this input.
7 NC unconnected No internal connection; 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 2 and pin 8 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; device function is unaffected if this pin is tied to a supply or ground on the PCB.
11 Y output Driver non-inverting output on the bus side (full-duplex device), driven from D when the driver is enabled.
12 Z output Driver inverting output on the bus side (full-duplex device), driven from D when the driver is enabled.
13 B input Bus-side receiver inverting input; bus pins withstand -7 V to 12 V common-mode voltage with absolute maximum of -18 V to 18 V referenced to GND2.
14 A input Bus-side receiver non-inverting input; bus pins withstand -7 V to 12 V common-mode voltage with absolute maximum of -18 V to 18 V referenced to GND2.
15 GND2 power_in Bus-side ground connection for VCC2; pin 9 and pin 15 must both be connected to GND2.
16 VCC2 power_in Receiver-side (bus-side) supply; the datasheet specifies VCC2 from 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: ISO1432DWR
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOIC-16-300mil (KiCad packages3D, STEP)
  • 3D model files: iso1432dwr-etched.step / iso1432dwr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); iso1432dwr.step / iso1432dwr.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