component

GM3085E

Public Made by Adom

by adom

GATEMODE RS-485 / RS-422 ICs, SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs gm3085e: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
gm3085e-etched.fit.json gm3085e: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
gm3085e-etched.glb gm3085e: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
gm3085e-etched.step gm3085e: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
gm3085e.glb Publish 0.1.0 · Ray
gm3085e.kicad_mod Publish 0.1.0 · Ray
gm3085e.kicad_sym Publish 0.1.0 · Ray
gm3085e.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect an… · Ray
gm3085e.step Publish 0.1.0 · Ray
package.json Publish 0.2.0 · Ray
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
page.json gm3085e: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray
README.md gm3085e: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray

GM3085E

GATEMODE · RS-485 / RS-422 ICs · SOP-8

GM3085E from GATEMODE, in a SOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 RO output Receiver output. When /RE is low, if A-B >= -50mV then RO outputs high; if A-B <= -200mV then RO outputs low. High-Z when /RE is high.
2 /RE input Receiver output enable (active-low). When /RE is low, RO output is active. When /RE is high, RO is in high-impedance state. When /RE is high AND DE is low, the device enters low-power shutdown mode.
3 DE input Driver output enable (active-high). When DE is high, driver outputs A/B are active. When DE is low, driver outputs are high-impedance. When /RE is high AND DE is low, the device enters low-power shutdown mode.
4 DI input Driver input. When DE is high, a low on DI drives A low and B high; a high on DI drives A high and B low. VIH >= 2.0V, VIL <= 0.8V, 100mV hysteresis.
5 GND power_in Ground reference for the device.
6 A bidirectional Non-inverting receiver input and non-inverting driver output (RS-485/RS-422 differential bus line A). ±15kV HBM ESD protected. Absolute max ±13V.
7 B bidirectional Inverting receiver input and inverting driver output (RS-485/RS-422 differential bus line B). ±15kV HBM ESD protected. Absolute max ±13V.
8 VCC power_in Positive supply terminal. Operating range 3.0V <= VCC <= 5.5V. Absolute max +7V. Decouple with 0.1uF to GND.

Key specifications

Parameter Value
Manufacturer GATEMODE
Package SOP-8
Category Interface
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • GM3085E

CAD (KiCad official)

  • Symbol: GM3085E
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: gm3085e-etched.step / gm3085e-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); gm3085e.step / gm3085e.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
gm3085e.step 122 KB You want the bare part, or you mark your own boards.
gm3085e-etched.step 1.9 MB You want the part with GM3085E already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 466 faces against 147 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

  • Datasheet: GATEMODE datasheet (10 pp, sha256 fcd5bc74db96cbaf, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF