SP490EEN-L

@@ -0,0 +1,55 @@+# SP490EEN-L++**MaxLinear** · RS-485 / RS-422 ICs · SOIC-8++SP490EEN-L from MaxLinear, in a SOIC-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 | VCC | power_in | Positive supply input, +4.75 V to +5.25 V (nominal +5 V). Typical supply current ~900 uA. Bypass locally with a 0.1 uF ceramic to GND. |+| 2 | R | output | Receiver data output. Logic-level output that follows the A-B differential input: HIGH when (A-B) > +200 mV, LOW when (A-B) < -200 mV. Drives up to +/-4 mA at CMOS logic levels; fail-safe HIGH when inputs are open. |+| 3 | D | input | Driver data input. CMOS-compatible logic input (V_IH >= 2.0 V, V_IL <= 0.8 V) that drives the differential Y/Z output pair. Always enabled on the SP490E (no DE pin). |+| 4 | GND | power_in | Device ground / 0 V reference for logic and differential I/O. |+| 5 | Y | output | Non-inverting driver output (RS-485/RS-422 bus line). Differential (Y-Z) swing is >=1.5 V into 54 ohm (RS-485) and >=2 V into 50 ohm (RS-422). Short-circuit current limited to +/-250 mA over -7 V to +12 V common mode. |+| 6 | Z | output | Inverting driver output (RS-485/RS-422 bus line). Complementary to Y, forming the differential driver pair. |+| 7 | B | input | Inverting receiver input (RS-485/RS-422 bus line). Differential sensitivity +/-200 mV; input resistance typ 15 kOhm (12 kOhm min); tolerates -7 V to +12 V common mode. |+| 8 | A | input | Non-inverting receiver input (RS-485/RS-422 bus line). Paired with B to form the differential receiver input; fail-safe HIGH R output when both inputs are left open. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | MaxLinear |+| Package | SOIC-8 |+| Category | Interface |+| Pins | 8 |++## Ordering variants++- `SP490EEN-LSP490EEN`+- `SP490EEN-L`+- `SP490EEN-LSP490ECN`+- `SP490EEN-LSP490EEP`+- `SP490EEN-LSP490ECP`+- `SP490EEN-LSP491EEN`+- `SP490EEN-LSP491ECN`+- `SP490EEN-LSP491EEP`+- `SP490EEN-LSP491ECP`++## CAD (KiCad official)++- Symbol: `SP490EEN-L`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOIC-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [MaxLinear datasheet](docs/sp490een-l-datasheet.pdf) (12 pp, sha256 `fd2d7cb7533d7f49`, 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/sp490een-l-datasheet.pdf)

@@ -0,0 +1,34 @@+{+  "slug": "sp490een-l",+  "version": "0.1.0",+  "type": "component",+  "description": "MaxLinear RS-485 / RS-422 ICs, SOIC-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+  "tags": [+    "component",+    "interface",+    "sp490een-l"+  ],+  "dependencies": {},+  "hero": {+    "type": "image",+    "path": "docs/hero.png"+  },+  "files": [+    "page.json",+    "README.md",+    "sp490een-l.kicad_sym",+    "sp490een-l.kicad_mod",+    "sp490een-l.glb",+    "sp490een-l.step",+    "sp490een-l.lbr",+    "docs/hero.png",+    "docs/sp490een-l-datasheet.pdf",+    "viewers/symbol.html",+    "viewers/footprint.html"+  ],+  "visibility": "public",+  "author": {+    "name": "Ray",+    "email": "[email protected]"+  }+}\ No newline at end of file