component
ST485BDR
Public Made by Adomby adom
STMicroelectronics RS-485 / RS-422 ICs, SOIC-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.md+14@@ -39,6 +39,20 @@ ST485BDR from STMicroelectronics, in a SOIC-8. Pinout and pin descriptions extra - Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm` - 3D model: SOIC-8 (KiCad packages3D, STEP) +## 3D model downloads++Two STEP files. Same geometry, different body top:++| File | Size | Use it when |+|---|---|---|+| [`st485bdr.step`](st485bdr.step) | 122 KB | You want the bare part, or you mark your own boards. |+| [`st485bdr-etched.step`](st485bdr-etched.step) | 2.0 MB | You want the part with `ST485BDR` already on it. |++The marking in the etched file is real recessed geometry cut into the solid, not a+texture or a decal: 494 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": "st485bdr",- "version": "0.1.0",+ "version": "0.2.0", "type": "component", "description": "STMicroelectronics RS-485 / RS-422 ICs, SOIC-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.", "tags": [
page.json+10−10@@ -4,7 +4,7 @@ "slug": "st485bdr", "title": "ST485BDR", "brief": "STMicroelectronics RS-485 / RS-422 ICs, SOIC-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.",- "version": "0.1.0",+ "version": "0.2.0", "license": "CC-BY-SA-4.0", "tags": [ "component",@@ -40,7 +40,7 @@ "number": "2", "name": "RE", "type": "input",- "description": "Receiver output enable (active-low). Drive low to enable the receiver output RO; drive high to place RO in high-impedance state. Input high >= 2.0 V, input low <= 0.8 V; input leakage \u00b12 \u00b5A."+ "description": "Receiver output enable (active-low). Drive low to enable the receiver output RO; drive high to place RO in high-impedance state. Input high >= 2.0 V, input low <= 0.8 V; input leakage ±2 µA." }, { "number": "3",@@ -52,7 +52,7 @@ "number": "4", "name": "DI", "type": "input",- "description": "Driver input. CMOS-level TTL-compatible logic input; when DE is high, DI high forces A high and B low, DI low forces A low and B high. Input high >= 2.0 V, input low <= 0.8 V; leakage \u00b12 \u00b5A."+ "description": "Driver input. CMOS-level TTL-compatible logic input; when DE is high, DI high forces A high and B low, DI low forces A low and B high. Input high >= 2.0 V, input low <= 0.8 V; leakage ±2 µA." }, { "number": "5",@@ -64,19 +64,19 @@ "number": "6", "name": "A", "type": "bidirectional",- "description": "Non-inverting differential bus pin: non-inverting receiver input and non-inverting driver output. Tolerates -7 V to +12 V common-mode; \u00b114 V absolute maximum. Receiver input impedance >= 24 k\u03a9."+ "description": "Non-inverting differential bus pin: non-inverting receiver input and non-inverting driver output. Tolerates -7 V to +12 V common-mode; ±14 V absolute maximum. Receiver input impedance >= 24 kΩ." }, { "number": "7", "name": "B", "type": "bidirectional",- "description": "Inverting differential bus pin: inverting receiver input and inverting driver output. Tolerates -7 V to +12 V common-mode; \u00b114 V absolute maximum. Receiver input impedance >= 24 k\u03a9."+ "description": "Inverting differential bus pin: inverting receiver input and inverting driver output. Tolerates -7 V to +12 V common-mode; ±14 V absolute maximum. Receiver input impedance >= 24 kΩ." }, { "number": "8", "name": "VCC", "type": "power_in",- "description": "Positive supply. Nominal 5 V \u00b1 5 % (single supply). Absolute maximum 7 V. Quiescent supply current 300 \u00b5A typ. (unloaded, driver disabled)."+ "description": "Positive supply. Nominal 5 V ± 5 % (single supply). Absolute maximum 7 V. Quiescent supply current 300 µA typ. (unloaded, driver disabled)." } ], "provenance": {@@ -150,9 +150,9 @@ "docs/hero.png", "docs/st485bdr-datasheet.pdf", "viewers/symbol.html",- "viewers/footprint.html"+ "viewers/footprint.html",+ "pads.json" ],- "visibility": {- "public": true- }+ "visibility": "public",+ "description": "STMicroelectronics RS-485 / RS-422 ICs, SOIC-8. Datasheet-verified pinout, KiCad symbol/footprint/3D." }