component
SN75LBC176DR
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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+44@@ -0,0 +1,44 @@+# SN75LBC176DR++**Texas Instruments** · RS-485 / RS-422 ICs · SOIC-8++SN75LBC176DR 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 | R | output | Receiver logic output carrying the RS-485 receive data; the receiver output current is limited to ±10 mA (absolute maximum). |+| 2 | RE | input | Active-low receiver enable: driving RE low enables the receiver, and driving it high puts R in the high-impedance state. |+| 3 | DE | input | Active-high driver enable: the driver outputs A and B are active when DE is high and are high-impedance when DE is low. |+| 4 | D | input | Driver logic input carrying the RS-485 transmit data, with VIH of at least 2 V and VIL of at most 0.8 V. |+| 5 | GND | power_in | Ground reference for the device; all voltages other than the differential bus voltage are referenced to this network ground terminal. |+| 6 | A | bidirectional | Non-inverting RS-485 bus terminal (differential I/O port A) with a bus voltage range of −7 V to 12 V recommended and −10 V to 15 V absolute maximum. |+| 7 | B | bidirectional | Inverting RS-485 bus terminal (differential I/O port B) with a bus voltage range of −7 V to 12 V recommended and −10 V to 15 V absolute maximum. |+| 8 | VCC | power_in | 5 V supply pin; the recommended supply range is 4.75 V to 5.25 V and the absolute maximum is 7 V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-8 |+| Category | Interface |+| Pins | 8 |++## CAD (KiCad official)++- Symbol: `SN75LBC176DR`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOIC-8 (KiCad packages3D, STEP)+- 3D model files: `sn75lbc176dr-etched.step` / `sn75lbc176dr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn75lbc176dr.step` / `sn75lbc176dr.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/lit/ds/symlink/sn75lbc176.pdf) (29 pp, sha256 `a708c623b041ca86`, retrieved 2026-10-08, tier: manufacturer)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (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/sn75lbc176dr-datasheet.pdf)
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Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "interface",+ "sn75lbc176dr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "sn75lbc176dr.kicad_sym",+ "sn75lbc176dr.kicad_mod",+ "sn75lbc176dr.glb",+ "sn75lbc176dr.step",+ "sn75lbc176dr.lbr",+ "docs/hero.png",+ "docs/sn75lbc176dr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "sn75lbc176dr-hero.glb",+ "sn75lbc176dr-hero.overlay.json"+ ],+ "component": {+ "mpn": "SN75LBC176DR",+ "manufacturer": "Texas Instruments",+ "package": "SOIC-8",+ "pin_count": 8,+ "category": "Interface",+ "subcategory": "RS-485 / RS-422 ICs",+ "datasheet": "https://www.ti.com/lit/ds/symlink/sn75lbc176.pdf",+ "parts": {+ "symbol": "sn75lbc176dr.kicad_sym",+ "footprint": "sn75lbc176dr.kicad_mod",+ "model_3d": "sn75lbc176dr-hero.glb",+ "model_3d_plain": "sn75lbc176dr.glb",+ "model_3d_step": "sn75lbc176dr-etched.step",+ "model_3d_step_plain": "sn75lbc176dr.step",+ "lbr": "sn75lbc176dr.lbr"+ },+ "distributor_links": {+ "lcsc": "C7072",+ "digikey": "296-1279-2-ND",+ "mouser": "595-SN75LBC176DR"+ },+ "distributor_check": {+ "checked_at": "2026-10-08T20:30:03Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-1279-2-ND",+ "status": "found",+ "lifecycle": "Obsolete"+ },+ "mouser": {+ "pn": "595-SN75LBC176DR",+ "status": "found",+ "lifecycle": "Obsolete"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "R",+ "type": "output",+ "description": "Receiver logic output carrying the RS-485 receive data; the receiver output current is limited to ±10 mA (absolute maximum)."+ },+ {+ "number": "2",+ "name": "RE",+ "type": "input",+ "description": "Active-low receiver enable: driving RE low enables the receiver, and driving it high puts R in the high-impedance state."+ },+ {+ "number": "3",+ "name": "DE",+ "type": "input",+ "description": "Active-high driver enable: the driver outputs A and B are active when DE is high and are high-impedance when DE is low."+ },+ {+ "number": "4",+ "name": "D",+ "type": "input",+ "description": "Driver logic input carrying the RS-485 transmit data, with VIH of at least 2 V and VIL of at most 0.8 V."+ },+ {+ "number": "5",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference for the device; all voltages other than the differential bus voltage are referenced to this network ground terminal."+ },+ {+ "number": "6",+ "name": "A",+ "type": "bidirectional",+ "description": "Non-inverting RS-485 bus terminal (differential I/O port A) with a bus voltage range of −7 V to 12 V recommended and −10 V to 15 V absolute maximum."+ },+ {+ "number": "7",+ "name": "B",+ "type": "bidirectional",+ "description": "Inverting RS-485 bus terminal (differential I/O port B) with a bus voltage range of −7 V to 12 V recommended and −10 V to 15 V absolute maximum."+ },+ {+ "number": "8",+ "name": "VCC",+ "type": "power_in",+ "description": "5 V supply pin; the recommended supply range is 4.75 V to 5.25 V and the absolute maximum is 7 V."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "primary_model": "claude-haiku-5-5",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "extractor flagged: The exact orderable part number SN75LBC176DR does not appear in the datasheet's Package Option Adden; The datasheet's tape-and-reel table and orderable list show SN65LBC176DR (a different suffix and the; Pin 4 D and pin 7 B have no separate voltage ranges for their logic thresholds beyond what is stated"+ ],+ "pages_sent": 29,+ "cost_usd": 0.1014,+ "at": "2026-10-08T20:29:31"+ },+ "datasheet": {+ "url": "https://www.ti.com/lit/ds/symlink/sn75lbc176.pdf",+ "pages": 29,+ "sha256": "a708c623b041ca86",+ "source_tier": "mfr"+ },+ "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": "sn75lbc176dr.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": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "sn75lbc176dr-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": "c6da52f4154045a3792ea442454967092f5a71342a0badafc69239f385fe632e",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}