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Initial commit: component/cd74act245m

Ray ·4529788e50 ·1d ago
2 files changed +288
README.mdadded+57
@@ -0,0 +1,57 @@+# CD74ACT245M++**Texas Instruments** · Latches · SOIC-20-300mil++CD74ACT245M 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; when low selects B-to-A data transmission, when high selects A-to-B transmission |+| 2 | A0 | bidirectional | Bidirectional bus line on side A with three-state output capability; maximum ±24mA output drive |+| 3 | A1 | bidirectional | Bidirectional bus line on side A with three-state output capability; maximum ±24mA output drive |+| 4 | A2 | bidirectional | Bidirectional bus line on side A with three-state output capability; maximum ±24mA output drive |+| 5 | A3 | bidirectional | Bidirectional bus line on side A with three-state output capability; maximum ±24mA output drive |+| 6 | A4 | bidirectional | Bidirectional bus line on side A with three-state output capability; maximum ±24mA output drive |+| 7 | A5 | bidirectional | Bidirectional bus line on side A with three-state output capability; maximum ±24mA output drive |+| 8 | A6 | bidirectional | Bidirectional bus line on side A with three-state output capability; maximum ±24mA output drive |+| 9 | A7 | bidirectional | Bidirectional bus line on side A with three-state output capability; maximum ±24mA output drive |+| 10 | GND | power_in | Ground reference pin at 0V potential |+| 11 | B7 | bidirectional | Bidirectional bus line on side B with three-state output capability; maximum ±24mA output drive |+| 12 | B6 | bidirectional | Bidirectional bus line on side B with three-state output capability; maximum ±24mA output drive |+| 13 | B5 | bidirectional | Bidirectional bus line on side B with three-state output capability; maximum ±24mA output drive |+| 14 | B4 | bidirectional | Bidirectional bus line on side B with three-state output capability; maximum ±24mA output drive |+| 15 | B3 | bidirectional | Bidirectional bus line on side B with three-state output capability; maximum ±24mA output drive |+| 16 | B2 | bidirectional | Bidirectional bus line on side B with three-state output capability; maximum ±24mA output drive |+| 17 | B1 | bidirectional | Bidirectional bus line on side B with three-state output capability; maximum ±24mA output drive |+| 18 | B0 | bidirectional | Bidirectional bus line on side B with three-state output capability; maximum ±24mA output drive |+| 19 | OE | input | Output Enable control input (active low); when high places all output drivers in high-impedance state |+| 20 | VCC | power_in | Positive power supply pin for CD74ACT245; recommended operating voltage 4.5V to 5.5V |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-20-300mil |+| Category | Logic |+| Pins | 20 |++## CAD (KiCad official)++- Symbol: `CD74ACT245M`+- Footprint: `Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm`+- 3D model: SOIC-20-300mil (KiCad packages3D, STEP)+- 3D model files: `cd74act245m-etched.step` / `cd74act245m-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cd74act245m.step` / `cd74act245m.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/cd74ac245) (28 pp, sha256 `c2afbf4b9cea018d`, retrieved 2026-10-06, 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 0.3`, 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/cd74act245m-datasheet.pdf)
page.jsonadded+231
@@ -0,0 +1,231 @@+{+  "slug": "cd74act245m",+  "version": "0.1.0",+  "type": "component",+  "description": "Texas Instruments Latches, SOIC-20-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+  "tags": [+    "component",+    "logic",+    "cd74act245m",+    "factory-2.0.0",+    "extractor-text"+  ],+  "dependencies": {},+  "hero": {+    "type": "image",+    "path": "docs/hero.png"+  },+  "files": [+    "page.json",+    "README.md",+    "cd74act245m.kicad_sym",+    "cd74act245m.kicad_mod",+    "cd74act245m.glb",+    "cd74act245m.step",+    "cd74act245m.lbr",+    "docs/hero.png",+    "docs/cd74act245m-datasheet.pdf",+    "viewers/symbol.html",+    "viewers/footprint.html",+    "cd74act245m-hero.glb",+    "cd74act245m-hero.overlay.json"+  ],+  "component": {+    "mpn": "CD74ACT245M",+    "manufacturer": "Texas Instruments",+    "package": "SOIC-20-300mil",+    "pin_count": 20,+    "category": "Logic",+    "subcategory": "Latches",+    "datasheet": "https://www.ti.com/cn/lit/gpn/cd74ac245",+    "parts": {+      "symbol": "cd74act245m.kicad_sym",+      "footprint": "cd74act245m.kicad_mod",+      "model_3d": "cd74act245m-hero.glb",+      "model_3d_plain": "cd74act245m.glb",+      "model_3d_step": "cd74act245m-etched.step",+      "model_3d_step_plain": "cd74act245m.step",+      "lbr": "cd74act245m.lbr"+    },+    "distributor_links": {+      "lcsc": 2861832,+      "digikey": "296-4271-5-ND",+      "mouser": "595-CD74ACT245M"+    },+    "distributor_check": {+      "checked_at": "2026-10-06T16:49:49Z",+      "source": "Component Ocean /api/assign-pns",+      "digikey": {+        "pn": "296-4271-5-ND",+        "status": "found",+        "lifecycle": "Obsolete"+      },+      "mouser": {+        "pn": "595-CD74ACT245M",+        "status": "found",+        "lifecycle": "Obsolete"+      }+    },+    "pins": [+      {+        "number": "1",+        "name": "DIR",+        "type": "input",+        "description": "Direction control input; when low selects B-to-A data transmission, when high selects A-to-B transmission"+      },+      {+        "number": "2",+        "name": "A0",+        "type": "bidirectional",+        "description": "Bidirectional bus line on side A with three-state output capability; maximum ±24mA output drive"+      },+      {+        "number": "3",+        "name": "A1",+        "type": "bidirectional",+        "description": "Bidirectional bus line on side A with three-state output capability; maximum ±24mA output drive"+      },+      {+        "number": "4",+        "name": "A2",+        "type": "bidirectional",+        "description": "Bidirectional bus line on side A with three-state output capability; maximum ±24mA output drive"+      },+      {+        "number": "5",+        "name": "A3",+        "type": "bidirectional",+        "description": "Bidirectional bus line on side A with three-state output capability; maximum ±24mA output drive"+      },+      {+        "number": "6",+        "name": "A4",+        "type": "bidirectional",+        "description": "Bidirectional bus line on side A with three-state output capability; maximum ±24mA output drive"+      },+      {+        "number": "7",+        "name": "A5",+        "type": "bidirectional",+        "description": "Bidirectional bus line on side A with three-state output capability; maximum ±24mA output drive"+      },+      {+        "number": "8",+        "name": "A6",+        "type": "bidirectional",+        "description": "Bidirectional bus line on side A with three-state output capability; maximum ±24mA output drive"+      },+      {+        "number": "9",+        "name": "A7",+        "type": "bidirectional",+        "description": "Bidirectional bus line on side A with three-state output capability; maximum ±24mA output drive"+      },+      {+        "number": "10",+        "name": "GND",+        "type": "power_in",+        "description": "Ground reference pin at 0V potential"+      },+      {+        "number": "11",+        "name": "B7",+        "type": "bidirectional",+        "description": "Bidirectional bus line on side B with three-state output capability; maximum ±24mA output drive"+      },+      {+        "number": "12",+        "name": "B6",+        "type": "bidirectional",+        "description": "Bidirectional bus line on side B with three-state output capability; maximum ±24mA output drive"+      },+      {+        "number": "13",+        "name": "B5",+        "type": "bidirectional",+        "description": "Bidirectional bus line on side B with three-state output capability; maximum ±24mA output drive"+      },+      {+        "number": "14",+        "name": "B4",+        "type": "bidirectional",+        "description": "Bidirectional bus line on side B with three-state output capability; maximum ±24mA output drive"+      },+      {+        "number": "15",+        "name": "B3",+        "type": "bidirectional",+        "description": "Bidirectional bus line on side B with three-state output capability; maximum ±24mA output drive"+      },+      {+        "number": "16",+        "name": "B2",+        "type": "bidirectional",+        "description": "Bidirectional bus line on side B with three-state output capability; maximum ±24mA output drive"+      },+      {+        "number": "17",+        "name": "B1",+        "type": "bidirectional",+        "description": "Bidirectional bus line on side B with three-state output capability; maximum ±24mA output drive"+      },+      {+        "number": "18",+        "name": "B0",+        "type": "bidirectional",+        "description": "Bidirectional bus line on side B with three-state output capability; maximum ±24mA output drive"+      },+      {+        "number": "19",+        "name": "OE",+        "type": "input",+        "description": "Output Enable control input (active low); when high places all output drivers in high-impedance state"+      },+      {+        "number": "20",+        "name": "VCC",+        "type": "power_in",+        "description": "Positive power supply pin for CD74ACT245; recommended operating voltage 4.5V to 5.5V"+      }+    ],+    "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": 28,+        "cost_usd": 0.1733,+        "at": "2026-10-06T16:49:32"+      },+      "datasheet": {+        "url": "https://www.ti.com/cn/lit/gpn/cd74ac245",+        "pages": 28,+        "sha256": "c2afbf4b9cea018d",+        "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]"+  }+}\ No newline at end of file