component

SP485EN-L

Public Made by Adom

by adom

MaxLinear Buffer/Driver/Transceiver, SOIC-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs sp485en-l: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
package.json Publish 0.2.0 · Ray
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
page.json sp485en-l: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray
README.md sp485en-l: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray
sp485en-l-etched.fit.json sp485en-l: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
sp485en-l-etched.glb sp485en-l: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
sp485en-l-etched.step sp485en-l: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
sp485en-l.glb Publish 0.1.0 · Ray
sp485en-l.kicad_mod Publish 0.1.0 · Ray
sp485en-l.kicad_sym Publish 0.1.0 · Ray
sp485en-l.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect an… · Ray
sp485en-l.step Publish 0.1.0 · Ray

SP485EN-L

MaxLinear · Buffer/Driver/Transceiver · SOIC-8

SP485EN-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 of the differential receiver. Outputs HIGH (>=2.4V @ Io=-4mA) when A-B > +200mV, LOW (<=0.4V @ Io=+4mA) when A-B < -200mV. High-impedance when /RE is HIGH.
2 /RE input Receiver Output Enable, active LOW. Drive LOW to enable RO; drive HIGH to place RO in high-impedance (three-state). Standard CMOS logic input (VIH >= 2.0V, VIL <= 0.8V).
3 DE input Driver Output Enable, active HIGH. Drive HIGH to enable the differential driver onto A/B; drive LOW to place driver outputs in high-impedance. Standard CMOS logic input (VIH >= 2.0V, VIL <= 0.8V).
4 DI input Driver Input. CMOS logic-level input that drives the differential bus when DE is HIGH. A HIGH on DI forces A > B; a LOW forces B > A. VIH >= 2.0V, VIL <= 0.8V.
5 GND power_in Ground reference for all logic and driver/receiver circuitry.
6 A bidirectional Non-inverting differential driver output / receiver input. Connects to the RS-485/RS-422 bus. Withstands common-mode voltages from -7V to +12V; differential threshold +/-200mV; input resistance >=12kΩ.
7 B bidirectional Inverting differential driver output / receiver input. Connects to the RS-485/RS-422 bus. Withstands common-mode voltages from -7V to +12V; differential threshold +/-200mV; input resistance >=12kΩ.
8 VCC power_in Positive supply input. Operating range +4.75V to +5.25V (+5V nominal). Typical supply current 900µA (SP485). Absolute max +7V. Decouple with a 0.1µF ceramic capacitor to GND.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • SP485EN-L
  • SP485EN-L/TR
  • SP485CN-L
  • SP485CN-L/TR
  • SP485ES-L
  • SP485CS-L

CAD (KiCad official)

  • Symbol: SP485EN-L
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: sp485en-l-etched.step / sp485en-l-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sp485en-l.step / sp485en-l.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
sp485en-l.step 122 KB You want the bare part, or you mark your own boards.
sp485en-l-etched.step 1.8 MB You want the part with SP485EN-L already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 450 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 (13 pp, sha256 0ca911ff79c9ea65, 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