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+11−8@@ -32,19 +32,19 @@ "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."+ "description": "Positive supply, 3.0 V to 5.25 V (3.3 V/5 V nominal). Bypass to GND with a 0.1 µF ceramic capacitor. Quiescent supply current ICC ≈ 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."+ "description": "Receiver output (CMOS). Drives high when V(A)-V(B) ≥ -50 mV and low when V(A)-V(B) ≤ -200 mV. Fail-safe: outputs high when receiver inputs are open or shorted. VOH ≥ VCC-0.6 V at -4 mA; VOL ≤ 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."+ "description": "Driver input (CMOS logic). DI=high forces Y high and Z low; DI=low forces Y low and Z high. VIH ≥ 2.0 V, VIL ≤ 0.8 V, 100 mV hysteresis, ±1 µA input leakage." }, { "number": "4",@@ -56,25 +56,25 @@ "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."+ "description": "RS-422/RS-485 differential bus non-inverting driver output. Follows DI (Y=DI). Supports ±15 kV HBM and ±12 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."+ "description": "RS-422/RS-485 differential bus inverting driver output. Complement of Y (Z = /DI). Supports ±15 kV HBM and ±12 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."+ "description": "RS-422/RS-485 differential bus receiver inverting input. Input impedance 96 kΩ min (1/8 unit load), allowing up to 256 nodes on the bus. Common-mode range -7 V to +12 V. Supports ±15 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."+ "description": "RS-422/RS-485 differential bus receiver non-inverting input. Input impedance 96 kΩ min (1/8 unit load). Common-mode range -7 V to +12 V. Receiver threshold VTH = -200 mV to -50 mV. Supports ±15 kV HBM ESD." } ], "provenance": {@@ -139,5 +139,8 @@ "docs/gb490h-datasheet.pdf", "viewers/symbol.html", "viewers/footprint.html"- ]+ ],+ "visibility": {+ "public": true+ } }