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SSP3085

Public Made by Adom

by adom

Shanghai Siproin Microelectronics RS-485 / RS-422 ICs, SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Made with kicad-footprint-generator 10.0 · KiCad file format 20260206
Name Last commit message Last updated
docs ssp3085: 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 ssp3085: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray
README.md ssp3085: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray
ssp3085-etched.fit.json ssp3085: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
ssp3085-etched.glb ssp3085: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
ssp3085-etched.step ssp3085: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
ssp3085.glb Publish 0.1.0 · Ray
ssp3085.kicad_mod Publish 0.1.0 · Ray
ssp3085.kicad_sym Publish 0.1.0 · Ray
ssp3085.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
ssp3085.step Publish 0.1.0 · Ray

SSP3085

Shanghai Siproin Microelectronics · RS-485 / RS-422 ICs · SOP-8

SSP3085 from Shanghai Siproin Microelectronics, in a SOP-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 tri_state Receiver output. Drives high when A-B >= -0.05V, low when A-B <= -0.2V, and high (fail-safe) when A and B are open or shorted. High-impedance when RE is high.
2 /RE input Active-low receiver output enable. RO is enabled when /RE is low; RO is high-impedance when /RE is high.
3 DE input Driver output enable. Driver outputs A and B are enabled when DE is high; they are high-impedance when DE is low.
4 DI input Driver input. A low on DI forces output A low and output B high; a high on DI forces output A high and output B low.
5 GND power_in Ground reference (0V).
6 A bidirectional Non-inverting RS-485/RS-422 bus pin: receiver input and driver output. ±15kV HBM ESD protected. Absolute input voltage range -7V to +12V.
7 B bidirectional Inverting RS-485/RS-422 bus pin: receiver input and driver output. ±15kV HBM ESD protected. Absolute input voltage range -7V to +12V.
8 VDD power_in Supply voltage input, nominally +5V (±5%). Absolute maximum 6V. Bypass to GND with 0.1µF ceramic capacitor.

Key specifications

Parameter Value
Manufacturer Shanghai Siproin Microelectronics
Package SOP-8
Category Interface
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • SSP3085

CAD (KiCad official)

  • Symbol: SSP3085
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: ssp3085-etched.step / ssp3085-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ssp3085.step / ssp3085.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
ssp3085.step 122 KB You want the bare part, or you mark your own boards.
ssp3085-etched.step 2.2 MB You want the part with SSP3085 already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 517 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: Shanghai Siproin Microelectronics datasheet (11 pp, sha256 206e7ab738ff2155, 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