component
SN65HVD21DR
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+44@@ -0,0 +1,44 @@+# SN65HVD21DR++**Texas Instruments** · RS-485 / RS-422 ICs · SOIC-8++SN65HVD21DR 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 | Receive data output, active high |+| 2 | RE | input | Receiver enable, active low; enables differential receiver when low |+| 3 | DE | input | Driver enable, active high; enables differential driver when high |+| 4 | D | input | Driver data input for digital data transmission onto RS-485 bus |+| 5 | GND | power_in | Local device ground reference potential |+| 6 | A | bidirectional | Differential bus A output/input, driver output or receiver input complementary to B, voltage range -20 V to 25 V |+| 7 | B | bidirectional | Differential bus B output/input, driver output or receiver input complementary to A, voltage range -20 V to 25 V |+| 8 | VCC | power_in | Supply voltage, 4.5-V to 5.5-V nominal |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-8 |+| Category | Interface |+| Pins | 8 |++## CAD (KiCad official)++- Symbol: `SN65HVD21DR`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOIC-8 (KiCad packages3D, STEP)+- 3D model files: `sn65hvd21dr-etched.step` / `sn65hvd21dr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn65hvd21dr.step` / `sn65hvd21dr.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/sn65hvd21.pdf) (37 pp, sha256 `7a91efb110506aa4`, retrieved 2026-10-06, tier: manufacturer)+- **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/sn65hvd21dr-datasheet.pdf)
page.jsonadded+157@@ -0,0 +1,157 @@+{+ "slug": "sn65hvd21dr",+ "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",+ "sn65hvd21dr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "sn65hvd21dr.kicad_sym",+ "sn65hvd21dr.kicad_mod",+ "sn65hvd21dr.glb",+ "sn65hvd21dr.step",+ "sn65hvd21dr.lbr",+ "docs/hero.png",+ "docs/sn65hvd21dr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "sn65hvd21dr-hero.glb",+ "sn65hvd21dr-hero.overlay.json"+ ],+ "component": {+ "mpn": "SN65HVD21DR",+ "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/sn65hvd21.pdf",+ "parts": {+ "symbol": "sn65hvd21dr.kicad_sym",+ "footprint": "sn65hvd21dr.kicad_mod",+ "model_3d": "sn65hvd21dr-hero.glb",+ "model_3d_plain": "sn65hvd21dr.glb",+ "model_3d_step": "sn65hvd21dr-etched.step",+ "model_3d_step_plain": "sn65hvd21dr.step",+ "lbr": "sn65hvd21dr.lbr"+ },+ "distributor_links": {+ "lcsc": 2870622,+ "digikey": "296-39175-2-ND",+ "mouser": "595-SN65HVD21DR"+ },+ "distributor_check": {+ "checked_at": "2026-10-06T02:39:03Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-39175-2-ND",+ "status": "found"+ },+ "mouser": {+ "pn": "595-SN65HVD21DR",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "R",+ "type": "output",+ "description": "Receive data output, active high"+ },+ {+ "number": "2",+ "name": "RE",+ "type": "input",+ "description": "Receiver enable, active low; enables differential receiver when low"+ },+ {+ "number": "3",+ "name": "DE",+ "type": "input",+ "description": "Driver enable, active high; enables differential driver when high"+ },+ {+ "number": "4",+ "name": "D",+ "type": "input",+ "description": "Driver data input for digital data transmission onto RS-485 bus"+ },+ {+ "number": "5",+ "name": "GND",+ "type": "power_in",+ "description": "Local device ground reference potential"+ },+ {+ "number": "6",+ "name": "A",+ "type": "bidirectional",+ "description": "Differential bus A output/input, driver output or receiver input complementary to B, voltage range -20 V to 25 V"+ },+ {+ "number": "7",+ "name": "B",+ "type": "bidirectional",+ "description": "Differential bus B output/input, driver output or receiver input complementary to A, voltage range -20 V to 25 V"+ },+ {+ "number": "8",+ "name": "VCC",+ "type": "power_in",+ "description": "Supply voltage, 4.5-V to 5.5-V nominal"+ }+ ],+ "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": 10,+ "cost_usd": 0.0787,+ "at": "2026-10-06T02:38:48"+ },+ "datasheet": {+ "url": "https://www.ti.com/lit/ds/symlink/sn65hvd21.pdf",+ "pages": 37,+ "sha256": "7a91efb110506aa4",+ "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"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}