component
SN75179BD
Public Made by Adomby adom
Texas Instruments RS-485 / RS-422 ICs, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+45@@ -0,0 +1,45 @@+# SN75179BD++**Texas Instruments** · RS-485 / RS-422 ICs · SOIC-8++SN75179BD from Texas Instruments, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | VCC | power_in | 5V power supply |+| 2 | R | output | Receiver output; high when differential A-B ≥ +0.2V, low when A-B ≤ -0.2V |+| 3 | D | input | Driver input; controls Y and Z outputs complementarily; logic high/low |+| 4 | GND | power_in | Ground reference |+| 5 | Y | output | Non-inverting driver output; high when D input high; ±60mA output capability |+| 6 | Z | output | Inverted driver output; high when D input low; ±60mA output capability |+| 7 | B | input | Inverted RS485 bus input; 12kΩ minimum input impedance; differential pair with pin 8 (A) |+| 8 | A | input | Non-inverting RS485 bus input; 12kΩ minimum input impedance; differential pair with pin 7 (B) |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-8 |+| Category | Interface |+| Pins | 8 |++## CAD (KiCad official)++- Symbol: `SN75179BD`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOIC-8 (KiCad packages3D, STEP)+- 3D model files: `sn75179bd-etched.step` / `sn75179bd-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn75179bd.step` / `sn75179bd.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/sn75179b) (23 pp, sha256 `68cd6a4ac24e706a`, retrieved 2026-10-07, tier: lcsc)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/sn75179bd-datasheet.pdf)
page.jsonadded+199@@ -0,0 +1,199 @@+{+ "slug": "sn75179bd",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments RS-485 / RS-422 ICs, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "interface",+ "sn75179bd",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "sn75179bd.kicad_sym",+ "sn75179bd.kicad_mod",+ "sn75179bd.glb",+ "sn75179bd.step",+ "sn75179bd.lbr",+ "docs/hero.png",+ "docs/sn75179bd-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "sn75179bd-hero.glb",+ "sn75179bd-hero.overlay.json"+ ],+ "component": {+ "mpn": "SN75179BD",+ "manufacturer": "Texas Instruments",+ "package": "SOIC-8",+ "pin_count": 8,+ "category": "Interface",+ "subcategory": "RS-485 / RS-422 ICs",+ "datasheet": "https://www.ti.com/cn/lit/gpn/sn75179b",+ "parts": {+ "symbol": "sn75179bd.kicad_sym",+ "footprint": "sn75179bd.kicad_mod",+ "model_3d": "sn75179bd-hero.glb",+ "model_3d_plain": "sn75179bd.glb",+ "model_3d_step": "sn75179bd-etched.step",+ "model_3d_step_plain": "sn75179bd.step",+ "lbr": "sn75179bd.lbr"+ },+ "distributor_links": {+ "lcsc": "C354460",+ "digikey": "2156-SN75179BD-ND",+ "mouser": "595-SN75179BD"+ },+ "distributor_check": {+ "checked_at": "2026-10-07T07:35:28Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "2156-SN75179BD-ND",+ "status": "found",+ "lifecycle": "Obsolete"+ },+ "mouser": {+ "pn": "595-SN75179BD",+ "status": "found",+ "lifecycle": "Obsolete"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "VCC",+ "type": "power_in",+ "description": "5V power supply"+ },+ {+ "number": "2",+ "name": "R",+ "type": "output",+ "description": "Receiver output; high when differential A-B ≥ +0.2V, low when A-B ≤ -0.2V"+ },+ {+ "number": "3",+ "name": "D",+ "type": "input",+ "description": "Driver input; controls Y and Z outputs complementarily; logic high/low"+ },+ {+ "number": "4",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference"+ },+ {+ "number": "5",+ "name": "Y",+ "type": "output",+ "description": "Non-inverting driver output; high when D input high; ±60mA output capability"+ },+ {+ "number": "6",+ "name": "Z",+ "type": "output",+ "description": "Inverted driver output; high when D input low; ±60mA output capability"+ },+ {+ "number": "7",+ "name": "B",+ "type": "input",+ "description": "Inverted RS485 bus input; 12kΩ minimum input impedance; differential pair with pin 8 (A)"+ },+ {+ "number": "8",+ "name": "A",+ "type": "input",+ "description": "Non-inverting RS485 bus input; 12kΩ minimum input impedance; differential pair with pin 7 (B)"+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [],+ "pages_sent": 23,+ "cost_usd": 0.1009,+ "at": "2026-10-07T07:35:10"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/sn75179b",+ "pages": 23,+ "sha256": "68cd6a4ac24e706a",+ "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"+ },+ "models_3d": [+ {+ "file": "sn75179bd.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6,+ 4.9,+ 1.75+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "sn75179bd-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6,+ 4.9,+ 1.75+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "1b4fa8ad217df4ff9d30f40c07a9e53251b6d71f9ed4a6ea7088308f1323507f",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}