component

SP3078EMN-L

Public Unreviewed

by Ray

MaxLinear RS-485 / RS-422 ICs, SOIC-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

markdown

SP3078EMN-L

MaxLinear · RS-485 / RS-422 ICs · SOIC-8

SP3078EMN-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. When RE is low and (A-B) ≥ -50mV, RO is high; when (A-B) ≤ -200mV, RO is low. High impedance when RE is high.
2 RE input Receiver Output Enable (active low). When RE is low, RO is enabled; when RE is high, RO is high impedance. Hot-swap tolerant input; RE high combined with DE low places the device in shutdown mode.
3 DE input Driver Output Enable (active high). When DE is high, driver outputs A/B are enabled; when DE is low, they are high impedance. Hot-swap tolerant input; DE low combined with RE high enters shutdown mode.
4 DI input Driver Input. With DE high, a low on DI forces the noninverting bus output (A) low and the inverting output (B) high; a high on DI forces A high and B low.
5 GND power_in Ground reference for the device.
6 A bidirectional Noninverting Receiver Input and Noninverting Driver Output (half-duplex bus line A). ESD-protected to ±15kV HBM / ±8kV IEC 61000-4-2 contact.
7 B bidirectional Inverting Receiver Input and Inverting Driver Output (half-duplex bus line B). ESD-protected to ±15kV HBM / ±8kV IEC 61000-4-2 contact.
8 VCC power_in Positive supply, 3.3V nominal (3.0V-3.6V). Bypass to GND with a 0.1µF capacitor close to the pin.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • SP3078EEN-L
  • SP3078EEN-L/TR
  • SP3078EMN-L/TR

CAD (KiCad official)

  • Symbol: SP3078EMN-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 (None pp, sha256 24efa6b28f4cec32, 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