component

SP485REN-L

Public Made by Adom

by adom

MaxLinear RS-485 / RS-422 ICs, 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 sp485ren-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 sp485ren-l: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray
README.md sp485ren-l: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray
sp485ren-l-etched.fit.json sp485ren-l: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
sp485ren-l-etched.glb sp485ren-l: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
sp485ren-l-etched.step sp485ren-l: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
sp485ren-l.glb Publish 0.1.0 · Ray
sp485ren-l.kicad_mod Publish 0.1.0 · Ray
sp485ren-l.kicad_sym Publish 0.1.0 · Ray
sp485ren-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
sp485ren-l.step Publish 0.1.0 · Ray

SP485REN-L

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

SP485REN-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 output of the RS-485 differential receiver (VOH ≥ 2.4V, VOL ≤ 0.4V). High impedance when the receiver is disabled (RE = HIGH). Also drives HIGH under fail-safe when the A/B inputs are open.
2 /RE input Receiver Output Enable, active LOW. Drive LOW to enable RO; drive HIGH to place RO into high impedance (tri-state). Typically tied to DE for automatic direction control in half-duplex RS-485 links.
3 DE input Driver Output Enable, active HIGH. Drive HIGH to enable the differential driver onto pins A/B; drive LOW to tri-state the A/B outputs (>100kΩ). Combined with /RE for half-duplex bus direction control.
4 DI input Driver Input. CMOS-level TX data input to the RS-485 driver (VIL ≤ 0.8V, VIH ≥ 2.0V). When DE is HIGH, a LOW on DI forces A LOW and B HIGH; a HIGH on DI forces A HIGH and B LOW.
5 GND power_in Ground / 0V reference for the device.
6 A bidirectional Non-inverting RS-485 bus line. Serves as the driver's non-inverting output when DE is HIGH and as the receiver's non-inverting input when /RE is LOW. -7V to +12V common-mode range; input impedance ≥ 120kΩ (1/10 unit load).
7 B bidirectional Inverting RS-485 bus line. Serves as the driver's inverting output when DE is HIGH and as the receiver's inverting input when /RE is LOW. -7V to +12V common-mode range; input impedance ≥ 120kΩ (1/10 unit load).
8 VCC power_in Positive supply, +4.75V to +5.25V. Typical supply current 300µA (DE low) to 500µA (DE high), no load.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • SP485REN-L
  • SP485REN-L/TR
  • SP485RCN-L
  • SP485RCN-L/TR
  • SP485REP-L
  • SP485RCP-L

CAD (KiCad official)

  • Symbol: SP485REN-L
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: sp485ren-l-etched.step / sp485ren-l-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sp485ren-l.step / sp485ren-l.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
sp485ren-l.step 122 KB You want the bare part, or you mark your own boards.
sp485ren-l-etched.step 2.0 MB You want the part with SP485REN-L already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 500 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 b2e699515e04ebc4, 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