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SN74LV245ATDWR
Public Made by Adomby adom
Texas Instruments Buffers, Drivers, Receivers, Transceivers, SOIC-20-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+56@@ -0,0 +1,56 @@+# SN74LV245ATDWR++**Texas Instruments** · Buffers, Drivers, Receivers, Transceivers · SOIC-20-300mil++SN74LV245ATDWR from Texas Instruments, in a SOIC-20-300mil. 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 | DIR | input | Direction-control input: high transmits A data to B bus, low transmits B data to A bus (TTL-compatible, VIH min 2 V, VIL max 0.8 V). |+| 2 | A1 | bidirectional | A-bus channel 1 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V. |+| 3 | A2 | bidirectional | A-bus channel 2 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V. |+| 4 | A3 | bidirectional | A-bus channel 3 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V. |+| 5 | A4 | bidirectional | A-bus channel 4 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V. |+| 6 | A5 | bidirectional | A-bus channel 5 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V. |+| 7 | A6 | bidirectional | A-bus channel 6 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V. |+| 8 | A7 | bidirectional | A-bus channel 7 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V. |+| 9 | A8 | bidirectional | A-bus channel 8 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V. |+| 10 | GND | power_in | Ground pin. |+| 11 | B8 | bidirectional | B-bus channel 8 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V. |+| 12 | B7 | bidirectional | B-bus channel 7 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V. |+| 13 | B6 | bidirectional | B-bus channel 6 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V. |+| 14 | B5 | bidirectional | B-bus channel 5 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V. |+| 15 | B4 | bidirectional | B-bus channel 4 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V. |+| 16 | B3 | bidirectional | B-bus channel 3 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V. |+| 17 | B2 | bidirectional | B-bus channel 2 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V. |+| 18 | B1 | bidirectional | B-bus channel 1 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V. |+| 19 | OE | input | Output-enable input: high isolates the buses (high-impedance), and should be tied to VCC through a pullup resistor to ensure high-impedance during power up or power down. |+| 20 | VCC | power_in | Supply voltage, 4.5 V to 5.5 V recommended operating range (absolute maximum 7 V). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-20-300mil |+| Category | Logic |+| Pins | 20 |++## CAD (KiCad official)++- Symbol: `SN74LV245ATDWR`+- Footprint: `Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm`+- 3D model: SOIC-20-300mil (KiCad packages3D, STEP)+- 3D model files: `sn74lv245atdwr-etched.step` / `sn74lv245atdwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74lv245atdwr.step` / `sn74lv245atdwr.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/sn74lv245at) (24 pp, sha256 `9e878d0eaa21c4db`, retrieved 2026-10-03, tier: lcsc)+- **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/sn74lv245atdwr-datasheet.pdf)
page.jsonadded+232@@ -0,0 +1,232 @@+{+ "slug": "sn74lv245atdwr",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Buffers, Drivers, Receivers, Transceivers, SOIC-20-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "logic",+ "sn74lv245atdwr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "sn74lv245atdwr.kicad_sym",+ "sn74lv245atdwr.kicad_mod",+ "sn74lv245atdwr.glb",+ "sn74lv245atdwr.step",+ "sn74lv245atdwr.lbr",+ "docs/hero.png",+ "docs/sn74lv245atdwr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "sn74lv245atdwr-hero.glb",+ "sn74lv245atdwr-hero.overlay.json"+ ],+ "component": {+ "mpn": "SN74LV245ATDWR",+ "manufacturer": "Texas Instruments",+ "package": "SOIC-20-300mil",+ "pin_count": 20,+ "category": "Logic",+ "subcategory": "Buffers, Drivers, Receivers, Transceivers",+ "datasheet": "https://www.ti.com/cn/lit/gpn/sn74lv245at",+ "parts": {+ "symbol": "sn74lv245atdwr.kicad_sym",+ "footprint": "sn74lv245atdwr.kicad_mod",+ "model_3d": "sn74lv245atdwr-hero.glb",+ "model_3d_plain": "sn74lv245atdwr.glb",+ "model_3d_step": "sn74lv245atdwr-etched.step",+ "model_3d_step_plain": "sn74lv245atdwr.step",+ "lbr": "sn74lv245atdwr.lbr"+ },+ "distributor_links": {+ "lcsc": 2675849,+ "digikey": "296-17769-2-ND",+ "mouser": "595-SN74LV245ATDWR"+ },+ "distributor_check": {+ "checked_at": "2026-10-03T06:55:37Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-17769-2-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "595-SN74LV245ATDWR",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "DIR",+ "type": "input",+ "description": "Direction-control input: high transmits A data to B bus, low transmits B data to A bus (TTL-compatible, VIH min 2 V, VIL max 0.8 V)."+ },+ {+ "number": "2",+ "name": "A1",+ "type": "bidirectional",+ "description": "A-bus channel 1 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V."+ },+ {+ "number": "3",+ "name": "A2",+ "type": "bidirectional",+ "description": "A-bus channel 2 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V."+ },+ {+ "number": "4",+ "name": "A3",+ "type": "bidirectional",+ "description": "A-bus channel 3 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V."+ },+ {+ "number": "5",+ "name": "A4",+ "type": "bidirectional",+ "description": "A-bus channel 4 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V."+ },+ {+ "number": "6",+ "name": "A5",+ "type": "bidirectional",+ "description": "A-bus channel 5 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V."+ },+ {+ "number": "7",+ "name": "A6",+ "type": "bidirectional",+ "description": "A-bus channel 6 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V."+ },+ {+ "number": "8",+ "name": "A7",+ "type": "bidirectional",+ "description": "A-bus channel 7 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V."+ },+ {+ "number": "9",+ "name": "A8",+ "type": "bidirectional",+ "description": "A-bus channel 8 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V."+ },+ {+ "number": "10",+ "name": "GND",+ "type": "power_in",+ "description": "Ground pin."+ },+ {+ "number": "11",+ "name": "B8",+ "type": "bidirectional",+ "description": "B-bus channel 8 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V."+ },+ {+ "number": "12",+ "name": "B7",+ "type": "bidirectional",+ "description": "B-bus channel 7 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V."+ },+ {+ "number": "13",+ "name": "B6",+ "type": "bidirectional",+ "description": "B-bus channel 6 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V."+ },+ {+ "number": "14",+ "name": "B5",+ "type": "bidirectional",+ "description": "B-bus channel 5 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V."+ },+ {+ "number": "15",+ "name": "B4",+ "type": "bidirectional",+ "description": "B-bus channel 4 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V."+ },+ {+ "number": "16",+ "name": "B3",+ "type": "bidirectional",+ "description": "B-bus channel 3 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V."+ },+ {+ "number": "17",+ "name": "B2",+ "type": "bidirectional",+ "description": "B-bus channel 2 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V."+ },+ {+ "number": "18",+ "name": "B1",+ "type": "bidirectional",+ "description": "B-bus channel 1 data I/O, 3-state output with up to 16 mA drive at VCC = 4.5 V to 5.5 V."+ },+ {+ "number": "19",+ "name": "OE",+ "type": "input",+ "description": "Output-enable input: high isolates the buses (high-impedance), and should be tied to VCC through a pullup resistor to ensure high-impedance during power up or power down."+ },+ {+ "number": "20",+ "name": "VCC",+ "type": "power_in",+ "description": "Supply voltage, 4.5 V to 5.5 V recommended operating range (absolute maximum 7 V)."+ }+ ],+ "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": [+ "extractor flagged: The pinout on PAGE 1 shows a package diagram with pin numbers and signal labels arranged in a packag"+ ],+ "pages_sent": 24,+ "cost_usd": 0.1976,+ "at": "2026-10-03T06:55:04"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/sn74lv245at",+ "pages": 24,+ "sha256": "9e878d0eaa21c4db",+ "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]"+ }+}