component

ST485ABDR

Public Made by Adom

by adom

STMicroelectronics RS-485 / RS-422 ICs, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
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docs Publish 0.1.0 · Ray 20h ago
viewers st485abdr: viewers · Ray 20h ago
package.json st485abdr: LCSC part number C2969891 (was published as the bare integer) · Ray 8h ago
page.json st485abdr: LCSC part number C2969891 (was published as the bare integer) · Ray 8h ago
README.md Initial commit: component/st485abdr · Ray 20h ago
st485abdr-etched.glb st485abdr: factory component page (tier=lcsc) · Ray 20h ago
st485abdr-etched.step st485abdr: factory component page (tier=lcsc) · Ray 20h ago
st485abdr-hero.glb Publish 0.1.0 · Ray 20h ago
st485abdr-hero.overlay.json Publish 0.1.0 · Ray 20h ago
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st485abdr.lbr Publish 0.1.0 · Ray 20h ago
st485abdr.step Publish 0.1.0 · Ray 20h ago

ST485ABDR

STMicroelectronics · RS-485 / RS-422 ICs · SOIC-8

ST485ABDR from STMicroelectronics, 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 RO tri_state Receiver output; logic high when A-B exceeds 200 mV, logic low when A-B is below -200 mV; high impedance output when RE is high.
2 RE input Receiver output enable, active low; RO enabled when RE is low; device enters low power shutdown when RE is high and DE is low.
3 DE input Driver output enable, active high; driver outputs A and B enabled when DE is high; device enters low power shutdown when RE is high and DE is low.
4 DI input Driver input; low input forces A low and B high; high input forces A high and B low.
5 GND power_in Ground.
6 A bidirectional Non-inverting driver output and receiver input; receiver input impedance 12-24 kΩ; accepts -7 to 12 V common mode; active driver output when DE is high, high impedance when DE is low.
7 B bidirectional Inverting driver output and receiver input; receiver input impedance 12-24 kΩ; accepts -7 to 12 V common mode; active driver output when DE is high, high impedance when DE is low.
8 VCC power_in Supply voltage; operates from 4.75 V to 5.25 V.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package SOIC-8
Category Interface
Pins 8

CAD (KiCad official)

  • Symbol: ST485ABDR
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: st485abdr-etched.step / st485abdr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); st485abdr.step / st485abdr.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (19 pp, sha256 472bf002205c3749, retrieved 2026-10-06, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-4-5-20251001 (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