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SI8423BB-D-ISR

Public Made by Adom

by adom

Skyworks Solutions Digital Isolators, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SI8423BB-D-ISR

Skyworks Solutions · Digital Isolators · SOIC-8

SI8423BB-D-ISR from Skyworks Solutions, in a SOIC-8. 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 VDD1 power_in Side 1 power supply; the datasheet requires a 0.1 μF bypass capacitor between VDD1 and GND1 placed as close to the package as possible.
2 A1 input Side 1 digital input or output; for the Si8423 this channel is an input per the ordering guide.
3 A2 input Side 1 digital input or output; for the Si8423 this channel is an input per the ordering guide.
4 GND1 power_in Side 1 ground.
5 GND2 power_in Side 2 ground.
6 B2 output Side 2 digital input or output; for the Si8423 this channel is an output per the ordering guide.
7 B1 output Side 2 digital input or output; for the Si8423 this channel is an output per the ordering guide.
8 VDD2 power_in Side 2 power supply; the datasheet requires a 0.1 μF bypass capacitor between VDD2 and GND2 placed as close to the package as possible.

Key specifications

Parameter Value
Manufacturer Skyworks Solutions
Package SOIC-8
Category Signal Isolation Devices
Pins 8

CAD (KiCad official)

  • Symbol: SI8423BB-D-ISR
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: si8423bb-d-isr-etched.step / si8423bb-d-isr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); si8423bb-d-isr.step / si8423bb-d-isr.glb are the bare package body.

Provenance

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

  • Datasheet: Skyworks Solutions datasheet (38 pp, sha256 3ad94435a9a28841, retrieved 2026-10-28, tier: manufacturer)
  • 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