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HGX3088EIM

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by Ray

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

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3D Model

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Symbol & Footprint

Schematic Symbol

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PCB Footprint

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Datasheet

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Contents

README

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HGX3088EIM

HGSEMI · RS-485/RS-422 ICs · SOP-8

HGX3088EIM from HGSEMI, 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 output Receiver output. When RE is low and (A-B) ≥ -50mV, RO is driven high; when (A-B) ≤ -200mV, RO is driven low. High-Z when receiver is disabled.
2 RE input Receiver output enable, active-low. RO is enabled when RE is low; RO is high-impedance when RE is high. When RE is high AND DE is low the device enters low-power shutdown mode. Hot-swap input structure.
3 DE input Driver output enable, active-high. Driver outputs A/B are enabled when DE is high and high-impedance when DE is low. When RE is high AND DE is low the device enters low-power shutdown mode. Hot-swap input structure.
4 DI input Driver input. When DE is high, DI low drives A low and B high; DI high drives A high and B low. VIH = 2V min, VIL = 0.8V max.
5 GND power_in Ground reference.
6 A bidirectional Non-inverting receiver input AND non-inverting driver output (half-duplex bus pin). Tie through the RS-485 termination network to the differential bus. Absolute max: -7V to +12V. ±16kV IEC 61000-4-2 contact ESD protected.
7 B bidirectional Inverting receiver input AND inverting driver output (half-duplex bus pin). Tie through the RS-485 termination network to the differential bus. Absolute max: -7V to +12V. ±16kV IEC 61000-4-2 contact ESD protected.
8 VCC power_in Positive supply, 4.5V ≤ VCC ≤ 5.5V. Bypass to GND with a 0.1µF ceramic capacitor. Absolute max 6V.

Key specifications

Parameter Value
Manufacturer HGSEMI
Package SOP-8
Category Comm/UART
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • HGX3088EIM/TR
  • HGX3088ECM/TR
  • HGX3088EIN
  • HGX3088ECN
  • HGX3088EIMM/TR
  • HGX3088ECMM/TR
  • HGX3088EIM8/TR
  • HGX3088ECM8/TR

CAD (KiCad official)

  • Symbol: HGX3088EIM
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: HGSEMI datasheet (28 pp, sha256 f6d3ad97a8f240e8, retrieved 2026-08-17, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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