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COS13487EESA

Public Made by Adom

by adom

COSINE RS-485 / RS-422 ICs, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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COS13487EESA

COSINE · RS-485 / RS-422 ICs · SOP-8

COS13487EESA from COSINE, in a SOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 RO output Receiver output: when the receiver is enabled (RE low), RO goes high if A > B by 200 mV and goes low if A < B by 200 mV.
2 RE input Receiver output enable: a low enables RO, and a high lets the auto-direction circuit control the receiver; RE is a hot-swap input.
3 SHDN input Shutdown: driving SHDN low puts the device in shutdown mode, and driving it high lets the device operate normally.
4 DI input Driver input: driving DI low forces the non-inverting output low and the inverting output high, and driving it high does the reverse; DI also drives the internal state machine that automatically enables and disables the driver.
5 GND power_in Ground reference for the device; VCC must be bypassed to this pin with a 0.1 µF capacitor.
6 A bidirectional Non-inverting receiver input and non-inverting driver output on the RS-485 bus; the datasheet specifies a bus common-mode input range of -7 V to 12 V.
7 B bidirectional Inverting receiver input and inverting driver output on the RS-485 bus; the datasheet specifies a bus common-mode input range of -7 V to 12 V.
8 Vcc power_in Power supply input, 3 V to 5.5 V; bypass VCC to GND with a 0.1 µF capacitor.

Key specifications

Parameter Value
Manufacturer COSINE
Package SOP-8
Category Interface
Pins 8

CAD (KiCad official)

  • Symbol: COS13487EESA
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: cos13487eesa-etched.step / cos13487eesa-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cos13487eesa.step / cos13487eesa.glb are the bare package body.

Provenance

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

  • Datasheet: COSINE datasheet (14 pp, sha256 219cfb3fdda3a53d, retrieved 2026-10-09, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF