ST485ERBDR

@@ -0,0 +1,49 @@+# ST485ERBDR++**STMicroelectronics** · RS-485 / RS-422 ICs · SO-8++ST485ERBDR from STMicroelectronics, in a SO-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. CMOS logic-level output representing the received differential state on A/B. High-impedance when RE is high (receiver disabled). VOH ≥ 3.5 V @ IO = -4 mA; VOL ≤ 0.4 V @ IO = 4 mA. |+| 2 | ~RE | input | Receiver output enable (active-low). Drive low to enable RO; drive high to place RO in high-impedance. Logic input: VIH ≥ 2.0 V, VIL ≤ 0.8 V, IIN ≈ ±2 µA. |+| 3 | DE | input | Driver output enable (active-high). Drive high to enable the A/B differential driver outputs; drive low to place the driver outputs in high-impedance (3-state). Logic input: VIH ≥ 2.0 V, VIL ≤ 0.8 V. |+| 4 | DI | input | Driver input. CMOS logic-level input; when DE is high, DI = H drives B low and A high, DI = L drives B high and A low. VIH ≥ 2.0 V, VIL ≤ 0.8 V. |+| 5 | GND | power_in | Ground reference (0 V) for supply and all signal levels. |+| 6 | A | bidirectional | Non-inverting receiver input and non-inverting driver output of the RS-485/RS-422 differential bus. Withstands ±15 kV HBM / ±8 kV IEC-1000-4-2 ESD and -7 V to +12 V common-mode bus voltage. Receiver threshold VTH ±0.2 V referenced to B; input resistance ≥ 24 kΩ. |+| 7 | B | bidirectional | Inverting receiver input and inverting driver output of the RS-485/RS-422 differential bus. Withstands ±15 kV HBM / ±8 kV IEC-1000-4-2 ESD and -7 V to +12 V common-mode bus voltage. Complementary to A. |+| 8 | VCC | power_in | Supply voltage input, nominal 5 V (absolute maximum 7 V). Decouple locally to GND. Typical no-load supply current 300 µA (VDE = 0 V). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | SO-8 |+| Category | Interface |+| Pins | 8 |++## Ordering variants++Same part, different packaging or reel option.++- `ST485ERBDR`++## CAD (KiCad official)++- Symbol: `ST485ERBDR`+- Footprint: `Package_SO:TI_SO-PowerPAD-8`+- 3D model: SO-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [STMicroelectronics datasheet](docs/st485erbdr-datasheet.pdf) (19 pp, sha256 `6a5826d2bdc7896c`, retrieved 2026-08-17, tier: lcsc)+- **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](docs/st485erbdr-datasheet.pdf)

@@ -0,0 +1,34 @@+{+  "slug": "st485erbdr",+  "version": "0.1.0",+  "type": "component",+  "description": "STMicroelectronics RS-485 / RS-422 ICs, SO-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+  "tags": [+    "component",+    "interface",+    "st485erbdr"+  ],+  "dependencies": {},+  "hero": {+    "type": "image",+    "path": "docs/hero.png"+  },+  "files": [+    "page.json",+    "README.md",+    "st485erbdr.kicad_sym",+    "st485erbdr.kicad_mod",+    "st485erbdr.glb",+    "st485erbdr.step",+    "st485erbdr.lbr",+    "docs/hero.png",+    "docs/st485erbdr-datasheet.pdf",+    "viewers/symbol.html",+    "viewers/footprint.html"+  ],+  "visibility": "public",+  "author": {+    "name": "Ray",+    "email": "[email protected]"+  }+}\ No newline at end of file