SP483EEN-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. CMOS logic output driven from the differential A/B receiver; VOH ≥ 3.5V (IO = -4mA), VOL ≤ 0.4V (IO = 4mA). High-impedance (tri-state) when RE is high.
2	RE	input	Receiver output enable, active LOW. Drive low to enable the receiver output RO; drive high to place RO in high-impedance state. TTL/CMOS-compatible input (VIH ≥ 2.0V, VIL ≤ 0.8V).
3	DE	input	Driver output enable, active HIGH. Drive high to enable the differential driver on A/B; drive low to place A/B in high-impedance state. TTL/CMOS-compatible input (VIH ≥ 2.0V, VIL ≤ 0.8V).
4	DI	input	Driver input. CMOS/TTL logic input that drives the differential A/B outputs when the driver is enabled. VIH ≥ 2.0V, VIL ≤ 0.8V; input current ≤ 10µA.
5	GND	power_in	Ground reference for the device. Connect to system ground with a low-impedance return.
6	A	bidirectional	Non-inverting RS-485/RS-422 bus line. Acts as the non-inverting driver output when DE is high and as the non-inverting receiver input when RE is low. Withstands -7V to +12V common-mode range; ±15kV HBM / ±8kV IEC contact ESD protected.
7	B	bidirectional	Inverting RS-485/RS-422 bus line. Acts as the inverting driver output when DE is high and as the inverting receiver input when RE is low. Withstands -7V to +12V common-mode range; ±15kV HBM / ±8kV IEC contact ESD protected.
8	VCC	power_in	Positive supply, 4.75V ≤ VCC ≤ 5.25V (nominal 5V). Decouple to GND with a 0.1µF ceramic capacitor placed close to the pin. Absolute maximum 7.0V.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

SP483EEN-L/TR
SP483EEN-LECN-L/TR

CAD (KiCad official)

Symbol: SP483EEN-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
`sp483een-l.step`	122 KB	You want the bare part, or you mark your own boards.
`sp483een-l-etched.step`	1.9 MB	You want the part with `SP483EEN-L` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 491 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 (11 pp, sha256 0d6131874ed6a889, 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