SP3075EEN-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-level receiver output; drives high (VOH ≥ VCC−0.6V) when A−B > −50mV and low (VOL ≤ 0.4V) when A−B < −200mV. High-impedance (tri-stated) when /RE is high.
2	/RE	input	Receiver Enable, active-low. Drive low to enable the receiver output RO; drive high to tri-state RO. With /RE high and DE low the device enters low-power shutdown (ISHDN ≈ 0.05µA). Includes hot-swap glitch protection.
3	DE	input	Driver Enable, active-high. Drive high to enable the differential driver so DI is transmitted to bus pins A and B; drive low to tri-state the driver outputs. Includes hot-swap glitch protection.
4	DI	input	Driver Input. CMOS-level transmit data input. When DE is high, a logic high on DI drives A high and B low; a logic low on DI drives A low and B high. VIH ≥ 2V, VIL ≤ 0.8V.
5	GND	power_in	Ground reference (0V) for supply and logic.
6	A	bidirectional	Non-inverting RS-485/RS-422 bus pin. Driver output when DE is high and receiver input when /RE is low. Handles common-mode range −7V to +12V; ±15kV HBM / ±15kV Air-Gap / ±8kV Contact ESD protected. Receiver input resistance ≥96kΩ.
7	B	bidirectional	Inverting RS-485/RS-422 bus pin. Driver output when DE is high and receiver input when /RE is low. Handles common-mode range −7V to +12V; ±15kV HBM / ±15kV Air-Gap / ±8kV Contact ESD protected.
8	VCC	power_in	Positive supply, +3.3V ±0.3V (absolute max +6.0V). Typical supply current 0.8mA (1.5mA max); shutdown current 0.05µA typ (with /RE=VCC and DE=GND).

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

SP3075EEN-L
SP3075EEN-LEY-L
SP3075EEN-LEY

CAD (KiCad official)

Symbol: SP3075EEN-L
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOIC-8 (KiCad packages3D, STEP)

Provenance

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

Datasheet: MaxLinear datasheet (20 pp, sha256 860dab706abedb6e, 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