component
hgx485eim
Public Unreviewedby Ray
HGSEMI RS-485 / RS-422 ICs, SOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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README
markdownHGX485EIM
HGSEMI · RS-485 / RS-422 ICs · SOP-8
HGX485EIM 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, RO outputs high if (A-B) ≥ +200mV and low if (A-B) ≤ -200mV. High-impedance when /RE is high. |
| 2 | /RE | input | Receiver output enable (active low). RO is enabled when /RE is low and Hi-Z 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 Hi-Z 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 data input. When DE is high, a low on DI drives A low and B high; a high on DI drives A high and B low. VIH ≥ 2V, VIL ≤ 0.8V. |
| 5 | GND | power_in | Ground reference (0V) for the device. |
| 6 | A | bidirectional | Non-inverting receiver input and non-inverting driver output (RS-485/RS-422 differential bus line A). Withstands -7V to +12V common-mode range. |
| 7 | B | bidirectional | Inverting receiver input and inverting driver output (RS-485/RS-422 differential bus line B). Withstands -7V to +12V common-mode range. |
| 8 | VCC | power_in | Positive supply, 4.5V ≤ VCC ≤ 5.5V. Bypass to GND with a 0.1µF ceramic capacitor. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HGSEMI |
| Package | SOP-8 |
| Category | Interface |
| Pins | 8 |
Ordering variants
HGX485EIMHGX485ECM/TRHGX485EIM/TRHGX485EIMHGX485ECNHGX485EIMHGX485EINHGX485EIMHGX485ECMM/TRHGX485EIMM/TRHGX485EIMHGX485ECDQ/TRHGX485EIMHGX485ECDQ3/TRHGX485EIMHGX485EIDQ/TRHGX485EIMHGX485EIDQ3/TR
CAD (KiCad official)
- Symbol:
HGX485EIM - 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 (None pp, sha256
d939f6bd855e4a9f, 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).