SP3490EN-L

@@ -0,0 +1,54 @@+# SP3490EN-L++**MaxLinear** · RS-485 / RS-422 ICs · SOIC-8++SP3490EN-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. Operating range +3.00V to +3.60V (typ 3.3V). Bypass to GND with a local decoupling capacitor. |+| 2 | R | output | Receiver output. CMOS-level digital output driven from the differential receiver comparing pins A and B. Fail-safe HIGH when the A/B inputs are open. VOH = VCC-0.4V at IO=-1.5mA; VOL = 0.4V at IO=+2.5mA. |+| 3 | D | input | Driver input. CMOS logic input that determines the polarity of the differential driver outputs Y and Z. VIH = 2.0V min, VIL = 0.8V max, input current ±10µA max. |+| 4 | GND | power_in | Ground connection. Common return for supply, logic, and differential drivers/receivers. |+| 5 | Y | output | Non-inverting driver output. Half of the RS-485/RS-422 differential driver pair (Y/Z). Differential output ≥1.5V into 27Ω (RS-485) and ≥2V into 50Ω (RS-422). Withstands -7V to +12V bus common-mode. |+| 6 | Z | output | Inverting driver output. Complement of Y for the differential driver pair. Short-circuit current limited to ±250mA over -7V ≤ VO ≤ +12V. |+| 7 | B | input | Inverting receiver input. Half of the RS-485/RS-422 differential receiver pair (A/B). Differential threshold ±200mV, input resistance ≥12kΩ, common-mode range -7V to +12V. |+| 8 | A | input | Non-inverting receiver input. Half of the RS-485/RS-422 differential receiver pair. Fail-safe circuitry forces R HIGH when A/B are left open. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | MaxLinear |+| Package | SOIC-8 |+| Category | Interface |+| Pins | 8 |++## Ordering variants++- `SP3490EN-LCN-L`+- `SP3490EN-LCN-L/TR`+- `SP3490EN-LEN-L`+- `SP3490EN-LEN-L/TR`+- `SP3490EN-LSP3491CN-L`+- `SP3490EN-LSP3491CN-L/TR`+- `SP3490EN-LSP3491EN-L`+- `SP3490EN-LSP3491EN-L/TR`++## CAD (KiCad official)++- Symbol: `SP3490EN-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/sp3490en-l-datasheet.pdf) (12 pp, sha256 `3d8c54220a22cdb1`, retrieved 2026-08-17, tier: manufacturer)+- **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/sp3490en-l-datasheet.pdf)

@@ -0,0 +1,34 @@+{+  "slug": "sp3490en-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",+    "sp3490en-l"+  ],+  "dependencies": {},+  "hero": {+    "type": "image",+    "path": "docs/hero.png"+  },+  "files": [+    "page.json",+    "README.md",+    "sp3490en-l.kicad_sym",+    "sp3490en-l.kicad_mod",+    "sp3490en-l.glb",+    "sp3490en-l.step",+    "sp3490en-l.lbr",+    "docs/hero.png",+    "docs/sp3490en-l-datasheet.pdf",+    "viewers/symbol.html",+    "viewers/footprint.html"+  ],+  "visibility": "public",+  "author": {+    "name": "Ray",+    "email": "[email protected]"+  }+}\ No newline at end of file