component
SIT3490EEUA
Public Made by Adomby adom
SIT RS-485 / RS-422 ICs, MSOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.md+14@@ -38,6 +38,20 @@ SIT3490EEUA from SIT, in a MSOP-8. Pinout and pin descriptions extracted from th - Footprint: `Package_SO:MSOP-8_3x3mm_P0.65mm` - 3D model: MSOP-8 (KiCad packages3D, STEP) +## 3D model downloads++Two STEP files. Same geometry, different body top:++| File | Size | Use it when |+|---|---|---|+| [`sit3490eeua.step`](sit3490eeua.step) | 123 KB | You want the bare part, or you mark your own boards. |+| [`sit3490eeua-etched.step`](sit3490eeua-etched.step) | 2.3 MB | You want the part with `SIT3490EEUA` already on it. |++The marking in the etched file is real recessed geometry cut into the solid, not a+texture or a decal: 565 faces against 147 in the bare model. It+survives export, section views, and rendering in any CAD tool, and it drops straight+into KiCad or Fusion with no extra setup.+ ## Provenance Data extracted from the manufacturer datasheet, not a distributor listing:
package.json+1−1@@ -1,6 +1,6 @@ { "slug": "sit3490eeua",- "version": "0.1.0",+ "version": "0.2.0", "type": "component", "description": "SIT RS-485 / RS-422 ICs, MSOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.", "tags": [
page.json+9−9@@ -4,7 +4,7 @@ "slug": "sit3490eeua", "title": "SIT3490EEUA", "brief": "SIT RS-485 / RS-422 ICs, MSOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.",- "version": "0.1.0",+ "version": "0.2.0", "license": "CC-BY-SA-4.0", "tags": [ "component",@@ -58,25 +58,25 @@ "number": "5", "name": "Y", "type": "output",- "description": "Non-inverting driver output. Connect to the RS-485/RS-422 differential bus. Driver has short-circuit current limiting (35 mA to 250 mA to 0-12 V and -35 mA to -250 mA to -7-0 V) and \u00b115 kV HBM ESD protection."+ "description": "Non-inverting driver output. Connect to the RS-485/RS-422 differential bus. Driver has short-circuit current limiting (35 mA to 250 mA to 0-12 V and -35 mA to -250 mA to -7-0 V) and ±15 kV HBM ESD protection." }, { "number": "6", "name": "Z", "type": "output",- "description": "Inverting driver output. Connect to the RS-485/RS-422 differential bus opposite polarity from Y. \u00b115 kV HBM ESD protected."+ "description": "Inverting driver output. Connect to the RS-485/RS-422 differential bus opposite polarity from Y. ±15 kV HBM ESD protected." }, { "number": "7", "name": "B", "type": "input",- "description": "Inverting receiver input from the RS-485/RS-422 differential bus. 1/8 unit-load (RIN >= 96 k\u03a9); tolerates -7 V to +12 V common-mode. \u00b115 kV HBM ESD protected."+ "description": "Inverting receiver input from the RS-485/RS-422 differential bus. 1/8 unit-load (RIN >= 96 kΩ); tolerates -7 V to +12 V common-mode. ±15 kV HBM ESD protected." }, { "number": "8", "name": "A", "type": "input",- "description": "Non-inverting receiver input from the RS-485/RS-422 differential bus. 1/8 unit-load (RIN >= 96 k\u03a9); tolerates -7 V to +12 V common-mode. \u00b115 kV HBM ESD protected."+ "description": "Non-inverting receiver input from the RS-485/RS-422 differential bus. 1/8 unit-load (RIN >= 96 kΩ); tolerates -7 V to +12 V common-mode. ±15 kV HBM ESD protected." } ], "provenance": {@@ -150,9 +150,9 @@ "docs/hero.png", "docs/sit3490eeua-datasheet.pdf", "viewers/symbol.html",- "viewers/footprint.html"+ "viewers/footprint.html",+ "pads.json" ],- "visibility": {- "public": true- }+ "visibility": "public",+ "description": "SIT RS-485 / RS-422 ICs, MSOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D." }