component
ST485ABDR
Public Made by Adomby adom
STMicroelectronics RS-485 / RS-422 ICs, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+44@@ -0,0 +1,44 @@+# ST485ABDR++**STMicroelectronics** · RS-485 / RS-422 ICs · SOIC-8++ST485ABDR from STMicroelectronics, in a SOIC-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 | tri_state | Receiver output; logic high when A-B exceeds 200 mV, logic low when A-B is below -200 mV; high impedance output when RE is high. |+| 2 | RE | input | Receiver output enable, active low; RO enabled when RE is low; device enters low power shutdown when RE is high and DE is low. |+| 3 | DE | input | Driver output enable, active high; driver outputs A and B enabled when DE is high; device enters low power shutdown when RE is high and DE is low. |+| 4 | DI | input | Driver input; low input forces A low and B high; high input forces A high and B low. |+| 5 | GND | power_in | Ground. |+| 6 | A | bidirectional | Non-inverting driver output and receiver input; receiver input impedance 12-24 kΩ; accepts -7 to 12 V common mode; active driver output when DE is high, high impedance when DE is low. |+| 7 | B | bidirectional | Inverting driver output and receiver input; receiver input impedance 12-24 kΩ; accepts -7 to 12 V common mode; active driver output when DE is high, high impedance when DE is low. |+| 8 | VCC | power_in | Supply voltage; operates from 4.75 V to 5.25 V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | SOIC-8 |+| Category | Interface |+| Pins | 8 |++## CAD (KiCad official)++- Symbol: `ST485ABDR`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOIC-8 (KiCad packages3D, STEP)+- 3D model files: `st485abdr-etched.step` / `st485abdr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `st485abdr.step` / `st485abdr.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [STMicroelectronics datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590906391089524736) (19 pp, sha256 `472bf002205c3749`, retrieved 2026-10-06, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (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](docs/st485abdr-datasheet.pdf)
page.jsonadded+158@@ -0,0 +1,158 @@+{+ "slug": "st485abdr",+ "version": "0.1.0",+ "type": "component",+ "description": "STMicroelectronics RS-485 / RS-422 ICs, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "interface",+ "st485abdr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "st485abdr.kicad_sym",+ "st485abdr.kicad_mod",+ "st485abdr.glb",+ "st485abdr.step",+ "st485abdr.lbr",+ "docs/hero.png",+ "docs/st485abdr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "st485abdr-hero.glb",+ "st485abdr-hero.overlay.json"+ ],+ "component": {+ "mpn": "ST485ABDR",+ "manufacturer": "STMicroelectronics",+ "package": "SOIC-8",+ "pin_count": 8,+ "category": "Interface",+ "subcategory": "RS-485 / RS-422 ICs",+ "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590906391089524736",+ "parts": {+ "symbol": "st485abdr.kicad_sym",+ "footprint": "st485abdr.kicad_mod",+ "model_3d": "st485abdr-hero.glb",+ "model_3d_plain": "st485abdr.glb",+ "model_3d_step": "st485abdr-etched.step",+ "model_3d_step_plain": "st485abdr.step",+ "lbr": "st485abdr.lbr"+ },+ "distributor_links": {+ "lcsc": 2969891,+ "digikey": "497-2082-2-ND",+ "mouser": "511-ST485ABDR"+ },+ "distributor_check": {+ "checked_at": "2026-10-06T04:42:23Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "497-2082-2-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "511-ST485ABDR",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "RO",+ "type": "tri_state",+ "description": "Receiver output; logic high when A-B exceeds 200 mV, logic low when A-B is below -200 mV; high impedance output when RE is high."+ },+ {+ "number": "2",+ "name": "RE",+ "type": "input",+ "description": "Receiver output enable, active low; RO enabled when RE is low; device enters low power shutdown when RE is high and DE is low."+ },+ {+ "number": "3",+ "name": "DE",+ "type": "input",+ "description": "Driver output enable, active high; driver outputs A and B enabled when DE is high; device enters low power shutdown when RE is high and DE is low."+ },+ {+ "number": "4",+ "name": "DI",+ "type": "input",+ "description": "Driver input; low input forces A low and B high; high input forces A high and B low."+ },+ {+ "number": "5",+ "name": "GND",+ "type": "power_in",+ "description": "Ground."+ },+ {+ "number": "6",+ "name": "A",+ "type": "bidirectional",+ "description": "Non-inverting driver output and receiver input; receiver input impedance 12-24 kΩ; accepts -7 to 12 V common mode; active driver output when DE is high, high impedance when DE is low."+ },+ {+ "number": "7",+ "name": "B",+ "type": "bidirectional",+ "description": "Inverting driver output and receiver input; receiver input impedance 12-24 kΩ; accepts -7 to 12 V common mode; active driver output when DE is high, high impedance when DE is low."+ },+ {+ "number": "8",+ "name": "VCC",+ "type": "power_in",+ "description": "Supply voltage; operates from 4.75 V to 5.25 V."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [],+ "pages_sent": 19,+ "cost_usd": 0.0926,+ "at": "2026-10-06T04:42:09"+ },+ "datasheet": {+ "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590906391089524736",+ "pages": 19,+ "sha256": "472bf002205c3749",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 8,+ "described": 8,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}