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SN74LV245ATPWR
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Texas Instruments Buffers, Drivers, Receivers, Transceivers, TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+56@@ -0,0 +1,56 @@+# SN74LV245ATPWR++**Texas Instruments** · Buffers, Drivers, Receivers, Transceivers · TSSOP-20++SN74LV245ATPWR from Texas Instruments, in a TSSOP-20. 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 the B bus, low transmits B data to the A bus; inputs are TTL-compatible and must be held at VCC or GND when unused (0 to 5.5 V). |+| 2 | A1 | bidirectional | A-bus port 1 with 3-state output, 16 mA drive at VCC = 4.5 V to 5.5 V, direction set by DIR and disabled by OE. |+| 3 | A2 | bidirectional | A-bus port 2 with 3-state output, 16 mA drive at VCC = 4.5 V to 5.5 V, direction set by DIR and disabled by OE. |+| 4 | A3 | bidirectional | A-bus port 3 with 3-state output, 16 mA drive at VCC = 4.5 V to 5.5 V, direction set by DIR and disabled by OE. |+| 5 | A4 | bidirectional | A-bus port 4 with 3-state output, 16 mA drive at VCC = 4.5 V to 5.5 V, direction set by DIR and disabled by OE. |+| 6 | A5 | bidirectional | A-bus port 5 with 3-state output, 16 mA drive at VCC = 4.5 V to 5.5 V, direction set by DIR and disabled by OE. |+| 7 | A6 | bidirectional | A-bus port 6 with 3-state output, 16 mA drive at VCC = 4.5 V to 5.5 V, direction set by DIR and disabled by OE. |+| 8 | A7 | bidirectional | A-bus port 7 with 3-state output, 16 mA drive at VCC = 4.5 V to 5.5 V, direction set by DIR and disabled by OE. |+| 9 | A8 | bidirectional | A-bus port 8 with 3-state output, 16 mA drive at VCC = 4.5 V to 5.5 V, direction set by DIR and disabled by OE. |+| 10 | GND | power_in | Ground reference; continuous current through VCC or GND is limited to ±70 mA. |+| 11 | B8 | bidirectional | B-bus port 8 with 3-state output, 16 mA drive at VCC = 4.5 V to 5.5 V, direction set by DIR and disabled by OE. |+| 12 | B7 | bidirectional | B-bus port 7 with 3-state output, 16 mA drive at VCC = 4.5 V to 5.5 V, direction set by DIR and disabled by OE. |+| 13 | B6 | bidirectional | B-bus port 6 with 3-state output, 16 mA drive at VCC = 4.5 V to 5.5 V, direction set by DIR and disabled by OE. |+| 14 | B5 | bidirectional | B-bus port 5 with 3-state output, 16 mA drive at VCC = 4.5 V to 5.5 V, direction set by DIR and disabled by OE. |+| 15 | B4 | bidirectional | B-bus port 4 with 3-state output, 16 mA drive at VCC = 4.5 V to 5.5 V, direction set by DIR and disabled by OE. |+| 16 | B3 | bidirectional | B-bus port 3 with 3-state output, 16 mA drive at VCC = 4.5 V to 5.5 V, direction set by DIR and disabled by OE. |+| 17 | B2 | bidirectional | B-bus port 2 with 3-state output, 16 mA drive at VCC = 4.5 V to 5.5 V, direction set by DIR and disabled by OE. |+| 18 | B1 | bidirectional | B-bus port 1 with 3-state output, 16 mA drive at VCC = 4.5 V to 5.5 V, direction set by DIR and disabled by OE. |+| 19 | OE | input | Output-enable input: high isolates the buses (high-impedance); tie to VCC through a pullup resistor to ensure high-impedance during power up or power down. |+| 20 | VCC | power_in | Supply voltage, recommended 4.5 V to 5.5 V (absolute maximum 7 V). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | TSSOP-20 |+| Category | Logic |+| Pins | 20 |++## CAD (KiCad official)++- Symbol: `SN74LV245ATPWR`+- Footprint: `Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm`+- 3D model: TSSOP-20 (KiCad packages3D, STEP)+- 3D model files: `sn74lv245atpwr-etched.step` / `sn74lv245atpwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74lv245atpwr.step` / `sn74lv245atpwr.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/sn74lv245at.pdf) (24 pp, sha256 `9e878d0eaa21c4db`, retrieved 2026-10-03, 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/sn74lv245atpwr-datasheet.pdf)
page.jsonadded+230@@ -0,0 +1,230 @@+{+ "slug": "sn74lv245atpwr",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Buffers, Drivers, Receivers, Transceivers, TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "logic",+ "sn74lv245atpwr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "sn74lv245atpwr.kicad_sym",+ "sn74lv245atpwr.kicad_mod",+ "sn74lv245atpwr.glb",+ "sn74lv245atpwr.step",+ "sn74lv245atpwr.lbr",+ "docs/hero.png",+ "docs/sn74lv245atpwr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "sn74lv245atpwr-hero.glb",+ "sn74lv245atpwr-hero.overlay.json"+ ],+ "component": {+ "mpn": "SN74LV245ATPWR",+ "manufacturer": "Texas Instruments",+ "package": "TSSOP-20",+ "pin_count": 20,+ "category": "Logic",+ "subcategory": "Buffers, Drivers, Receivers, Transceivers",+ "datasheet": "https://www.ti.com/lit/ds/symlink/sn74lv245at.pdf",+ "parts": {+ "symbol": "sn74lv245atpwr.kicad_sym",+ "footprint": "sn74lv245atpwr.kicad_mod",+ "model_3d": "sn74lv245atpwr-hero.glb",+ "model_3d_plain": "sn74lv245atpwr.glb",+ "model_3d_step": "sn74lv245atpwr-etched.step",+ "model_3d_step_plain": "sn74lv245atpwr.step",+ "lbr": "sn74lv245atpwr.lbr"+ },+ "distributor_links": {+ "lcsc": 2675617,+ "digikey": "296-17771-2-ND",+ "mouser": "595-SN74LV245ATPWR"+ },+ "distributor_check": {+ "checked_at": "2026-10-03T08:03:01Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-17771-2-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "595-SN74LV245ATPWR",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "DIR",+ "type": "input",+ "description": "Direction-control input: high transmits A data to the B bus, low transmits B data to the A bus; inputs are TTL-compatible and must be held at VCC or GND when unused (0 to 5.5 V)."+ },+ {+ "number": "2",+ "name": "A1",+ "type": "bidirectional",+ "description": "A-bus port 1 with 3-state output, 16 mA drive at VCC = 4.5 V to 5.5 V, direction set by DIR and disabled by OE."+ },+ {+ "number": "3",+ "name": "A2",+ "type": "bidirectional",+ "description": "A-bus port 2 with 3-state output, 16 mA drive at VCC = 4.5 V to 5.5 V, direction set by DIR and disabled by OE."+ },+ {+ "number": "4",+ "name": "A3",+ "type": "bidirectional",+ "description": "A-bus port 3 with 3-state output, 16 mA drive at VCC = 4.5 V to 5.5 V, direction set by DIR and disabled by OE."+ },+ {+ "number": "5",+ "name": "A4",+ "type": "bidirectional",+ "description": "A-bus port 4 with 3-state output, 16 mA drive at VCC = 4.5 V to 5.5 V, direction set by DIR and disabled by OE."+ },+ {+ "number": "6",+ "name": "A5",+ "type": "bidirectional",+ "description": "A-bus port 5 with 3-state output, 16 mA drive at VCC = 4.5 V to 5.5 V, direction set by DIR and disabled by OE."+ },+ {+ "number": "7",+ "name": "A6",+ "type": "bidirectional",+ "description": "A-bus port 6 with 3-state output, 16 mA drive at VCC = 4.5 V to 5.5 V, direction set by DIR and disabled by OE."+ },+ {+ "number": "8",+ "name": "A7",+ "type": "bidirectional",+ "description": "A-bus port 7 with 3-state output, 16 mA drive at VCC = 4.5 V to 5.5 V, direction set by DIR and disabled by OE."+ },+ {+ "number": "9",+ "name": "A8",+ "type": "bidirectional",+ "description": "A-bus port 8 with 3-state output, 16 mA drive at VCC = 4.5 V to 5.5 V, direction set by DIR and disabled by OE."+ },+ {+ "number": "10",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference; continuous current through VCC or GND is limited to ±70 mA."+ },+ {+ "number": "11",+ "name": "B8",+ "type": "bidirectional",+ "description": "B-bus port 8 with 3-state output, 16 mA drive at VCC = 4.5 V to 5.5 V, direction set by DIR and disabled by OE."+ },+ {+ "number": "12",+ "name": "B7",+ "type": "bidirectional",+ "description": "B-bus port 7 with 3-state output, 16 mA drive at VCC = 4.5 V to 5.5 V, direction set by DIR and disabled by OE."+ },+ {+ "number": "13",+ "name": "B6",+ "type": "bidirectional",+ "description": "B-bus port 6 with 3-state output, 16 mA drive at VCC = 4.5 V to 5.5 V, direction set by DIR and disabled by OE."+ },+ {+ "number": "14",+ "name": "B5",+ "type": "bidirectional",+ "description": "B-bus port 5 with 3-state output, 16 mA drive at VCC = 4.5 V to 5.5 V, direction set by DIR and disabled by OE."+ },+ {+ "number": "15",+ "name": "B4",+ "type": "bidirectional",+ "description": "B-bus port 4 with 3-state output, 16 mA drive at VCC = 4.5 V to 5.5 V, direction set by DIR and disabled by OE."+ },+ {+ "number": "16",+ "name": "B3",+ "type": "bidirectional",+ "description": "B-bus port 3 with 3-state output, 16 mA drive at VCC = 4.5 V to 5.5 V, direction set by DIR and disabled by OE."+ },+ {+ "number": "17",+ "name": "B2",+ "type": "bidirectional",+ "description": "B-bus port 2 with 3-state output, 16 mA drive at VCC = 4.5 V to 5.5 V, direction set by DIR and disabled by OE."+ },+ {+ "number": "18",+ "name": "B1",+ "type": "bidirectional",+ "description": "B-bus port 1 with 3-state output, 16 mA drive at VCC = 4.5 V to 5.5 V, direction set by DIR and disabled by OE."+ },+ {+ "number": "19",+ "name": "OE",+ "type": "input",+ "description": "Output-enable input: high isolates the buses (high-impedance); tie 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, recommended 4.5 V to 5.5 V (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": [],+ "pages_sent": 24,+ "cost_usd": 0.1655,+ "at": "2026-10-03T08:02:35"+ },+ "datasheet": {+ "url": "https://www.ti.com/lit/ds/symlink/sn74lv245at.pdf",+ "pages": 24,+ "sha256": "9e878d0eaa21c4db",+ "source_tier": "mfr"+ },+ "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]"+ }+}