SSP485

@@ -0,0 +1,47 @@+# SSP485++**Shanghai Siproin Microelectronics** · RS-485 / RS-422 ICs · SOP-8++SSP485 from Shanghai Siproin Microelectronics, 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. RO is high when A-B >= -0.05V, low when A-B <= -0.2V, and high (fail-safe) when A and B are open or shorted. High-impedance when /RE is high. |+| 2 | /RE | input | Active-low receiver output enable. RO is enabled when /RE is low; RO is high-impedance when /RE is high. Driving /RE high with DE low puts the device into low-current shutdown. |+| 3 | DE | input | Driver output enable (active high). Driving DE high enables the A/B differential driver outputs; DE low puts A and B into high-impedance. |+| 4 | DI | input | Driver input. A low on DI forces A low and B high; a high on DI forces A high and B low (when DE is high). |+| 5 | GND | power_in | Ground reference (0V). |+| 6 | A | bidirectional | Non-inverting differential bus I/O. Receiver non-inverting input and driver non-inverting output for the RS-485/RS-422 twisted-pair bus. +/-15kV HBM ESD protected; withstands -13V to +13V bus common-mode. |+| 7 | B | bidirectional | Inverting differential bus I/O. Receiver inverting input and driver inverting output for the RS-485/RS-422 twisted-pair bus. +/-15kV HBM ESD protected; withstands -13V to +13V bus common-mode. |+| 8 | VDD | power_in | Positive supply voltage, typically +5V (absolute max -0.3V to +7V). Bypass to GND with a local 0.1uF ceramic capacitor. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Shanghai Siproin Microelectronics |+| Package | SOP-8 |+| Category | Interface |+| Pins | 8 |++## Ordering variants++- `SSP485`++## CAD (KiCad official)++- Symbol: `SSP485`+- 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:** [Shanghai Siproin Microelectronics datasheet](docs/ssp485-datasheet.pdf) (11 pp, sha256 `f2d022a6889a4bdc`, 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/ssp485-datasheet.pdf)

@@ -0,0 +1,34 @@+{+  "slug": "ssp485",+  "version": "0.1.0",+  "type": "component",+  "description": "Shanghai Siproin Microelectronics RS-485 / RS-422 ICs, SOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+  "tags": [+    "component",+    "interface",+    "ssp485"+  ],+  "dependencies": {},+  "hero": {+    "type": "image",+    "path": "docs/hero.png"+  },+  "files": [+    "page.json",+    "README.md",+    "ssp485.kicad_sym",+    "ssp485.kicad_mod",+    "ssp485.glb",+    "ssp485.step",+    "ssp485.lbr",+    "docs/hero.png",+    "docs/ssp485-datasheet.pdf",+    "viewers/symbol.html",+    "viewers/footprint.html"+  ],+  "visibility": "public",+  "author": {+    "name": "Ray",+    "email": "[email protected]"+  }+}\ No newline at end of file