WS3085W from GEC, 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 the receiver is enabled and V(A)-V(B) > -50mV, RO drives high; when V(A)-V(B) < -200mV, RO drives low. Fail-safe: outputs high when inputs are open or shorted.
2	/RE	input	Receiver output enable (active low). RO is enabled when /RE is low and disabled (high-Z) when /RE is high. With /RE=high and DE=low the chip enters low-power shutdown mode (typ. 1.8 µA).
3	DE	input	Driver output enable (active high). When DE is high the driver is enabled; when DE is low the driver outputs are high impedance. With /RE=high and DE=low the chip enters shutdown mode.
4	DI	input	Driver input. When DI is low the non-inverting driver output (A) is forced low and the inverting output (B) is forced high; when DI is high, A is forced high and B is forced low. VIH ≥ 2.0V, VIL ≤ 0.8V.
5	GND	power_in	Ground reference for the device.
6	A	bidirectional	RS-485/RS-422 bus interface: non-inverting driver output and non-inverting receiver input. Provides ±15kV HBM / ±12kV IEC 61000-4-2 contact-discharge ESD protection. Absolute range -8V to +13V.
7	B	bidirectional	RS-485/RS-422 bus interface: inverting driver output and inverting receiver input. Provides ±15kV HBM / ±12kV IEC 61000-4-2 contact-discharge ESD protection. Absolute range -8V to +13V.
8	VCC	power_in	Positive supply, 3.0V to 5.25V (nominal 3.3V/5V). Bypass to GND with a 0.1 µF ceramic capacitor. Typical ICC 450 µA (max 600 µA) no-load; 1.8 µA typ in shutdown.

Key specifications

Parameter	Value
Manufacturer	GEC
Package	SOP-8
Category	Comm/UART
Pins	8

Ordering variants

Same part, different packaging or reel option.

WS3085WEESA

CAD (KiCad official)

Symbol: WS3085W
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOP-8 (KiCad packages3D, STEP)

Provenance

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

Datasheet: GEC datasheet (10 pp, sha256 83e24e937c025f43, retrieved 2026-08-17, 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: 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