component
RS485
Public Made by Adomby adom
GR RS-485 / RS-422 ICs, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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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README
markdownRS485
GR · RS-485 / RS-422 ICs · SOP-8
RS485 from GR, 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: goes high when VA is more than 200 mV above VB and low when VA is more than 200 mV below VB. |
| 2 | RE | input | Receiver output enable, active low: when driven high, the receiver output RO is placed in high-impedance state. |
| 3 | DE | input | Driver output enable, active high: when DE is low the driver outputs A and B are high-impedance, and DE high puts the chip in transmit mode. |
| 4 | DI | input | Driver input: DI low drives A high and B low, and DI high drives the opposite states. |
| 5 | GND | power_in | Ground, negative supply terminal. |
| 6 | A | bidirectional | Receiver non-inverting input and driver non-inverting output. |
| 7 | B | bidirectional | Receiver inverting input and driver inverting output. |
| 8 | VCC | power_in | Positive supply terminal, 5 V single supply (absolute maximum 10 V). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | GR |
| Package | SOP-8 |
| Category | Interface |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
RS485 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
rs485-etched.step/rs485-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);rs485.step/rs485.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: GR datasheet (6 pp, sha256
cfd2c52103050b1e, retrieved 2026-10-09, 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: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).