component
GB490H
Public Made by Adomby adom
GEC RS-485 / RS-422 ICs, SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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page.json+117−8@@ -1,13 +1,127 @@ {+ "schema_version": 1,+ "type": "component", "slug": "gb490h",+ "title": "GB490H",+ "brief": "GEC RS-485 / RS-422 ICs, SOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.", "version": "0.1.0",- "type": "component",- "description": "GEC RS-485 / RS-422 ICs, SOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "license": "CC-BY-SA-4.0", "tags": [ "component", "interface", "gb490h" ],+ "component": {+ "mpn": "GB490H",+ "manufacturer": "GEC",+ "package": "SOP-8",+ "pin_count": 8,+ "category": "Interface",+ "subcategory": "RS-485 / RS-422 ICs",+ "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2201121530_GEC-GB490H_C2932177.pdf",+ "parts": {+ "symbol": "gb490h.kicad_sym",+ "footprint": "gb490h.kicad_mod",+ "model_3d": "gb490h.glb",+ "model_3d_step": "gb490h.step",+ "lbr": "gb490h.lbr"+ },+ "distributor_links": {},+ "pins": [+ {+ "number": "1",+ "name": "VCC",+ "type": "power_in",+ "description": "Positive supply, 3.0 V to 5.25 V (3.3 V/5 V nominal). Bypass to GND with a 0.1 \u00b5F ceramic capacitor. Quiescent supply current ICC \u2248 0.35 mA typ, 1 mA max."+ },+ {+ "number": "2",+ "name": "RO",+ "type": "output",+ "description": "Receiver output (CMOS). Drives high when V(A)-V(B) \u2265 -50 mV and low when V(A)-V(B) \u2264 -200 mV. Fail-safe: outputs high when receiver inputs are open or shorted. VOH \u2265 VCC-0.6 V at -4 mA; VOL \u2264 0.4 V at 4 mA."+ },+ {+ "number": "3",+ "name": "DI",+ "type": "input",+ "description": "Driver input (CMOS logic). DI=high forces Y high and Z low; DI=low forces Y low and Z high. VIH \u2265 2.0 V, VIL \u2264 0.8 V, 100 mV hysteresis, \u00b11 \u00b5A input leakage."+ },+ {+ "number": "4",+ "name": "GND",+ "type": "power_in",+ "description": "Device ground reference. All voltages are referenced to this pin."+ },+ {+ "number": "5",+ "name": "Y",+ "type": "output",+ "description": "RS-422/RS-485 differential bus non-inverting driver output. Follows DI (Y=DI). Supports \u00b115 kV HBM and \u00b112 kV IEC 61000-4-2 contact-discharge ESD. Absolute bus voltage rating -8 V to +13 V."+ },+ {+ "number": "6",+ "name": "Z",+ "type": "output",+ "description": "RS-422/RS-485 differential bus inverting driver output. Complement of Y (Z = /DI). Supports \u00b115 kV HBM and \u00b112 kV IEC 61000-4-2 contact-discharge ESD. Absolute bus voltage rating -8 V to +13 V."+ },+ {+ "number": "7",+ "name": "B",+ "type": "input",+ "description": "RS-422/RS-485 differential bus receiver inverting input. Input impedance 96 k\u03a9 min (1/8 unit load), allowing up to 256 nodes on the bus. Common-mode range -7 V to +12 V. Supports \u00b115 kV HBM ESD."+ },+ {+ "number": "8",+ "name": "A",+ "type": "input",+ "description": "RS-422/RS-485 differential bus receiver non-inverting input. Input impedance 96 k\u03a9 min (1/8 unit load). Common-mode range -7 V to +12 V. Receiver threshold VTH = -200 mV to -50 mV. Supports \u00b115 kV HBM ESD."+ }+ ],+ "provenance": {+ "extractor": "ds2sf",+ "datasheet": {+ "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2201121530_GEC-GB490H_C2932177.pdf",+ "pages": 9,+ "sha256": "79b49ce9d1da54d4",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 8,+ "described": 8,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ }+ },+ "metadata": {+ "specs": {+ "Manufacturer": "GEC",+ "Package": "SOP-8",+ "Category": "Interface",+ "Pins": "8"+ }+ },+ "variants": [],+ "sections": [+ "hero",+ "viewers",+ "readme",+ "breadcrumbs",+ "info"+ ],+ "discovery_triggers": [+ "gb490h"+ ],+ "discovery_pitch": "GB490H (GEC) component page with datasheet-verified CAD.",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }, "dependencies": {}, "hero": { "type": "image",@@ -25,10 +139,5 @@ "docs/gb490h-datasheet.pdf", "viewers/symbol.html", "viewers/footprint.html"- ],- "visibility": "public",- "author": {- "name": "Ray",- "email": "[email protected]"- }+ ] }