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 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