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ST3485EBDR-HXY
Public Made by Adomby adom
HXY MOSFET RS-485/RS-422 ICs, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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ST3485EBDR-HXY
HXY MOSFET · RS-485/RS-422 ICs · SOP-8
ST3485EBDR-HXY from HXY MOSFET, 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 | R | output | Receiver output (RO); when RE is low and A-B ≥ +0.2V RO is high, and when A-B ≤ -0.2V RO is low. |
| 2 | RE | input | Receiver output enable, active low; RE low enables the receiver and RE high puts RO in high impedance (VIH 2.0V min, VIL 0.8V max). |
| 3 | DE | input | Driver output enable, active high; DE high enables the driver outputs A and B, DE low puts them in high impedance (VIH 2.0V min, VIL 0.8V max). |
| 4 | D | input | Driver input (DI); with DE high, a low on D forces A low and B high, and a high on D forces A high and B low (input range -0.3V to +7V). |
| 5 | GND | power_in | Ground. |
| 6 | A | bidirectional | Non-inverting receiver input and non-inverting driver output on the RS-485 bus (-7V to +13V). |
| 7 | B | bidirectional | Inverting receiver input and inverting driver output on the RS-485 bus (-7V to +13V). |
| 8 | VCC | power_in | Positive supply, 3.0V to 3.6V operating range (absolute maximum 7V). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HXY MOSFET |
| Package | SOP-8 |
| Category | Communication Interface Chip |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
ST3485EBDR-HXY - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
st3485ebdr-hxy-etched.step/st3485ebdr-hxy-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);st3485ebdr-hxy.step/st3485ebdr-hxy.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HXY MOSFET datasheet (8 pp, sha256
cddae844c9c32522, retrieved 2026-10-23, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).
# ST3485EBDR-HXY
**HXY MOSFET** · RS-485/RS-422 ICs · SOP-8
ST3485EBDR-HXY from HXY MOSFET, 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 | R | output | Receiver output (RO); when RE is low and A-B ≥ +0.2V RO is high, and when A-B ≤ -0.2V RO is low. |
| 2 | RE | input | Receiver output enable, active low; RE low enables the receiver and RE high puts RO in high impedance (VIH 2.0V min, VIL 0.8V max). |
| 3 | DE | input | Driver output enable, active high; DE high enables the driver outputs A and B, DE low puts them in high impedance (VIH 2.0V min, VIL 0.8V max). |
| 4 | D | input | Driver input (DI); with DE high, a low on D forces A low and B high, and a high on D forces A high and B low (input range -0.3V to +7V). |
| 5 | GND | power_in | Ground. |
| 6 | A | bidirectional | Non-inverting receiver input and non-inverting driver output on the RS-485 bus (-7V to +13V). |
| 7 | B | bidirectional | Inverting receiver input and inverting driver output on the RS-485 bus (-7V to +13V). |
| 8 | VCC | power_in | Positive supply, 3.0V to 3.6V operating range (absolute maximum 7V). |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HXY MOSFET |
| Package | SOP-8 |
| Category | Communication Interface Chip |
| Pins | 8 |
## CAD (KiCad official)
- Symbol: `ST3485EBDR-HXY`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `st3485ebdr-hxy-etched.step` / `st3485ebdr-hxy-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `st3485ebdr-hxy.step` / `st3485ebdr-hxy.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [HXY MOSFET datasheet](docs/st3485ebdr-hxy-datasheet.pdf) (8 pp, sha256 `cddae844c9c32522`, retrieved 2026-10-23, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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](docs/st3485ebdr-hxy-datasheet.pdf)