SP485EEN-L from MaxLinear, in a SOIC-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. Reflects the state of the differential receiver input (A-B): HIGH when A-B > +0.2V, LOW when A-B < -0.2V. High-impedance (tri-state) when RE is HIGH. Fail-safe HIGH when inputs are open.
2	RE	input	Receiver output enable, active LOW. A logic LOW enables the receiver output RO; a logic HIGH tri-states RO. VIH ≥ 2.0V, VIL ≤ 0.8V.
3	DE	input	Driver output enable, active HIGH. A logic HIGH enables the differential driver outputs A and B; a logic LOW tri-states the driver outputs. VIH ≥ 2.0V, VIL ≤ 0.8V.
4	DI	input	Driver input. TTL/CMOS logic input driving the differential bus outputs when DE is HIGH: DI=HIGH drives A HIGH and B LOW; DI=LOW drives A LOW and B HIGH. VIH ≥ 2.0V, VIL ≤ 0.8V.
5	GND	power_in	Ground reference (0V) for the device.
6	A	bidirectional	Non-inverting driver output / receiver input. Connects to the RS-485/RS-422 differential bus line A. Common-mode range -7V to +12V; withstands ±15kV HBM and ±15kV IEC61000-4-2 Air Discharge ESD.
7	B	bidirectional	Inverting driver output / receiver input. Connects to the RS-485/RS-422 differential bus line B. Common-mode range -7V to +12V; withstands ±15kV HBM and ±15kV IEC61000-4-2 Air Discharge ESD.
8	VCC	power_in	Positive supply voltage. Operating range 4.75V to 5.25V (5V nominal). Typical supply current 900µA (no load, driver enabled).

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

SP485EEN-L
SP485EEN-L/TR
SP485ECN-L
SP485ECN-L/TR
SP485EMN-L/TR
SP481ECN-L/TR
SP481EEN-L/TR

CAD (KiCad official)

Symbol: SP485EEN-L
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOIC-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`sp485een-l.step`	122 KB	You want the bare part, or you mark your own boards.
`sp485een-l-etched.step`	1.9 MB	You want the part with `SP485EEN-L` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 477 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: MaxLinear datasheet (9 pp, sha256 4a2a188692170b46, retrieved 2026-08-17, tier: manufacturer)
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