component
SN74HC245NSR
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Texas Instruments Buffers, Drivers, Receivers, Transceivers, SOIC-20-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+57@@ -0,0 +1,57 @@+# SN74HC245NSR++**Texas Instruments** · Buffers, Drivers, Receivers, Transceivers · SOIC-20-208mil++SN74HC245NSR from Texas Instruments, in a SOIC-20-208mil. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | DIR | input | Direction control input; low for B-to-A data transfer, high for A-to-B transfer. |+| 2 | A1 | bidirectional | A-bus data transceiver pin 1 for bidirectional communication with B-bus. |+| 3 | A2 | bidirectional | A-bus data transceiver pin 2 for bidirectional communication with B-bus. |+| 4 | A3 | bidirectional | A-bus data transceiver pin 3 for bidirectional communication with B-bus. |+| 5 | A4 | bidirectional | A-bus data transceiver pin 4 for bidirectional communication with B-bus. |+| 6 | A5 | bidirectional | A-bus data transceiver pin 5 for bidirectional communication with B-bus. |+| 7 | A6 | bidirectional | A-bus data transceiver pin 6 for bidirectional communication with B-bus. |+| 8 | A7 | bidirectional | A-bus data transceiver pin 7 for bidirectional communication with B-bus. |+| 9 | A8 | bidirectional | A-bus data transceiver pin 8 for bidirectional communication with B-bus. |+| 10 | GND | power_in | Ground reference pin. |+| 11 | B8 | bidirectional | B-bus data transceiver pin 8 for bidirectional communication with A-bus. |+| 12 | B7 | bidirectional | B-bus data transceiver pin 7 for bidirectional communication with A-bus. |+| 13 | B6 | bidirectional | B-bus data transceiver pin 6 for bidirectional communication with A-bus. |+| 14 | B5 | bidirectional | B-bus data transceiver pin 5 for bidirectional communication with A-bus. |+| 15 | B4 | bidirectional | B-bus data transceiver pin 4 for bidirectional communication with A-bus. |+| 16 | B3 | bidirectional | B-bus data transceiver pin 3 for bidirectional communication with A-bus. |+| 17 | B2 | bidirectional | B-bus data transceiver pin 2 for bidirectional communication with A-bus. |+| 18 | B1 | bidirectional | B-bus data transceiver pin 1 for bidirectional communication with A-bus. |+| 19 | OE | input | Output enable control input; low enables transceiver outputs, high places outputs in high-impedance state. |+| 20 | VCC | power_in | Positive power supply pin with 2V to 6V recommended operating range. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-20-208mil |+| Category | Logic |+| Pins | 20 |++## CAD (KiCad official)++- Symbol: `SN74HC245NSR`+- Footprint: `Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm`+- 3D model: SOIC-20-208mil (KiCad packages3D, STEP)+- 3D model files: `sn74hc245nsr-etched.step` / `sn74hc245nsr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74hc245nsr.step` / `sn74hc245nsr.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/sn74hc245) (34 pp, sha256 `37c979faafe82b6b`, retrieved 2026-09-22, 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 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-4-6` (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/sn74hc245nsr-datasheet.pdf)
page.jsonadded+213@@ -0,0 +1,213 @@+{+ "slug": "sn74hc245nsr",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Buffers, Drivers, Receivers, Transceivers, SOIC-20-208mil. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "logic",+ "sn74hc245nsr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "sn74hc245nsr.kicad_sym",+ "sn74hc245nsr.kicad_mod",+ "sn74hc245nsr.glb",+ "sn74hc245nsr.step",+ "sn74hc245nsr.lbr",+ "docs/hero.png",+ "docs/sn74hc245nsr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "SN74HC245NSR",+ "manufacturer": "Texas Instruments",+ "package": "SOIC-20-208mil",+ "pin_count": 20,+ "category": "Logic",+ "subcategory": "Buffers, Drivers, Receivers, Transceivers",+ "datasheet": "https://www.ti.com/cn/lit/gpn/sn74hc245",+ "parts": {+ "symbol": "sn74hc245nsr.kicad_sym",+ "footprint": "sn74hc245nsr.kicad_mod",+ "model_3d": "sn74hc245nsr-etched.glb",+ "model_3d_plain": "sn74hc245nsr.glb",+ "model_3d_step": "sn74hc245nsr-etched.step",+ "model_3d_step_plain": "sn74hc245nsr.step",+ "lbr": "sn74hc245nsr.lbr"+ },+ "distributor_links": {+ "lcsc": "C88578"+ },+ "pins": [+ {+ "number": "1",+ "name": "DIR",+ "type": "input",+ "description": "Direction control input; low for B-to-A data transfer, high for A-to-B transfer."+ },+ {+ "number": "2",+ "name": "A1",+ "type": "bidirectional",+ "description": "A-bus data transceiver pin 1 for bidirectional communication with B-bus."+ },+ {+ "number": "3",+ "name": "A2",+ "type": "bidirectional",+ "description": "A-bus data transceiver pin 2 for bidirectional communication with B-bus."+ },+ {+ "number": "4",+ "name": "A3",+ "type": "bidirectional",+ "description": "A-bus data transceiver pin 3 for bidirectional communication with B-bus."+ },+ {+ "number": "5",+ "name": "A4",+ "type": "bidirectional",+ "description": "A-bus data transceiver pin 4 for bidirectional communication with B-bus."+ },+ {+ "number": "6",+ "name": "A5",+ "type": "bidirectional",+ "description": "A-bus data transceiver pin 5 for bidirectional communication with B-bus."+ },+ {+ "number": "7",+ "name": "A6",+ "type": "bidirectional",+ "description": "A-bus data transceiver pin 6 for bidirectional communication with B-bus."+ },+ {+ "number": "8",+ "name": "A7",+ "type": "bidirectional",+ "description": "A-bus data transceiver pin 7 for bidirectional communication with B-bus."+ },+ {+ "number": "9",+ "name": "A8",+ "type": "bidirectional",+ "description": "A-bus data transceiver pin 8 for bidirectional communication with B-bus."+ },+ {+ "number": "10",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference pin."+ },+ {+ "number": "11",+ "name": "B8",+ "type": "bidirectional",+ "description": "B-bus data transceiver pin 8 for bidirectional communication with A-bus."+ },+ {+ "number": "12",+ "name": "B7",+ "type": "bidirectional",+ "description": "B-bus data transceiver pin 7 for bidirectional communication with A-bus."+ },+ {+ "number": "13",+ "name": "B6",+ "type": "bidirectional",+ "description": "B-bus data transceiver pin 6 for bidirectional communication with A-bus."+ },+ {+ "number": "14",+ "name": "B5",+ "type": "bidirectional",+ "description": "B-bus data transceiver pin 5 for bidirectional communication with A-bus."+ },+ {+ "number": "15",+ "name": "B4",+ "type": "bidirectional",+ "description": "B-bus data transceiver pin 4 for bidirectional communication with A-bus."+ },+ {+ "number": "16",+ "name": "B3",+ "type": "bidirectional",+ "description": "B-bus data transceiver pin 3 for bidirectional communication with A-bus."+ },+ {+ "number": "17",+ "name": "B2",+ "type": "bidirectional",+ "description": "B-bus data transceiver pin 2 for bidirectional communication with A-bus."+ },+ {+ "number": "18",+ "name": "B1",+ "type": "bidirectional",+ "description": "B-bus data transceiver pin 1 for bidirectional communication with A-bus."+ },+ {+ "number": "19",+ "name": "OE",+ "type": "input",+ "description": "Output enable control input; low enables transceiver outputs, high places outputs in high-impedance state."+ },+ {+ "number": "20",+ "name": "VCC",+ "type": "power_in",+ "description": "Positive power supply pin with 2V to 6V recommended operating range."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.2",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.2",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-4-6",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [],+ "pages_sent": 34,+ "cost_usd": 0.2884,+ "at": "2026-09-22T00:53:26"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/sn74hc245",+ "pages": 34,+ "sha256": "37c979faafe82b6b",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 20,+ "described": 20,+ "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]"+ }+}