component
PCA9555DWR
Public Made by Adomby adom
Texas Instruments I/O Expanders, SOIC-24-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+61@@ -0,0 +1,61 @@+# PCA9555DWR++**Texas Instruments** · I/O Expanders · SOIC-24-300mil++PCA9555DWR from Texas Instruments, in a SOIC-24-300mil. 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 | INT | output | Interrupt output; connect to VCC through pullup resistor. |+| 2 | A1 | input | Address input 1; connect to VCC or ground. |+| 3 | A2 | input | Address input 2; connect to VCC or ground. |+| 4 | P00 | bidirectional | Port P00 input/output with push-pull structure. |+| 5 | P01 | bidirectional | Port P01 input/output with push-pull structure. |+| 6 | P02 | bidirectional | Port P02 input/output with push-pull structure. |+| 7 | P03 | bidirectional | Port P03 input/output with push-pull structure. |+| 8 | P04 | bidirectional | Port P04 input/output with push-pull structure. |+| 9 | P05 | bidirectional | Port P05 input/output with push-pull structure. |+| 10 | P06 | bidirectional | Port P06 input/output with push-pull structure. |+| 11 | P07 | bidirectional | Port P07 input/output with push-pull structure. |+| 12 | GND | power_in | Ground; negative supply rail. |+| 13 | P10 | bidirectional | Port P10 input/output with push-pull structure. |+| 14 | P11 | bidirectional | Port P11 input/output with push-pull structure. |+| 15 | P12 | bidirectional | Port P12 input/output with push-pull structure. |+| 16 | P13 | bidirectional | Port P13 input/output with push-pull structure. |+| 17 | P14 | bidirectional | Port P14 input/output with push-pull structure. |+| 18 | P15 | bidirectional | Port P15 input/output with push-pull structure. |+| 19 | P16 | bidirectional | Port P16 input/output with push-pull structure. |+| 20 | P17 | bidirectional | Port P17 input/output with push-pull structure. |+| 21 | A0 | input | Address input 0; connect to VCC or ground. |+| 22 | SCL | bidirectional | Serial clock bus; connect to VCC through pullup resistor. |+| 23 | SDA | bidirectional | Serial data bus; connect to VCC through pullup resistor. |+| 24 | VCC | power_in | Supply voltage; 2.3V to 5.5V operating range. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-24-300mil |+| Category | Interface |+| Pins | 24 |++## CAD (KiCad official)++- Symbol: `PCA9555DWR`+- Footprint: `Package_SO:SOIC-24W_7.5x15.4mm_P1.27mm`+- 3D model: SOIC-24-300mil (KiCad packages3D, STEP)+- 3D model files: `pca9555dwr-etched.step` / `pca9555dwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `pca9555dwr.step` / `pca9555dwr.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/pca9555) (49 pp, sha256 `f82351ef5c7f9c9c`, retrieved 2026-10-05, 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/pca9555dwr-datasheet.pdf)
page.jsonadded+254@@ -0,0 +1,254 @@+{+ "slug": "pca9555dwr",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments I/O Expanders, SOIC-24-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "interface",+ "pca9555dwr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "pca9555dwr.kicad_sym",+ "pca9555dwr.kicad_mod",+ "pca9555dwr.glb",+ "pca9555dwr.step",+ "pca9555dwr.lbr",+ "docs/hero.png",+ "docs/pca9555dwr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "pca9555dwr-hero.glb",+ "pca9555dwr-hero.overlay.json"+ ],+ "component": {+ "mpn": "PCA9555DWR",+ "manufacturer": "Texas Instruments",+ "package": "SOIC-24-300mil",+ "pin_count": 24,+ "category": "Interface",+ "subcategory": "I/O Expanders",+ "datasheet": "https://www.ti.com/cn/lit/gpn/pca9555",+ "parts": {+ "symbol": "pca9555dwr.kicad_sym",+ "footprint": "pca9555dwr.kicad_mod",+ "model_3d": "pca9555dwr-hero.glb",+ "model_3d_plain": "pca9555dwr.glb",+ "model_3d_step": "pca9555dwr-etched.step",+ "model_3d_step_plain": "pca9555dwr.step",+ "lbr": "pca9555dwr.lbr"+ },+ "distributor_links": {+ "lcsc": 2652274,+ "digikey": "296-20973-2-ND",+ "mouser": "595-PCA9555DWR"+ },+ "distributor_check": {+ "checked_at": "2026-10-05T23:00:26Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-20973-2-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "595-PCA9555DWR",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "INT",+ "type": "output",+ "description": "Interrupt output; connect to VCC through pullup resistor."+ },+ {+ "number": "2",+ "name": "A1",+ "type": "input",+ "description": "Address input 1; connect to VCC or ground."+ },+ {+ "number": "3",+ "name": "A2",+ "type": "input",+ "description": "Address input 2; connect to VCC or ground."+ },+ {+ "number": "4",+ "name": "P00",+ "type": "bidirectional",+ "description": "Port P00 input/output with push-pull structure."+ },+ {+ "number": "5",+ "name": "P01",+ "type": "bidirectional",+ "description": "Port P01 input/output with push-pull structure."+ },+ {+ "number": "6",+ "name": "P02",+ "type": "bidirectional",+ "description": "Port P02 input/output with push-pull structure."+ },+ {+ "number": "7",+ "name": "P03",+ "type": "bidirectional",+ "description": "Port P03 input/output with push-pull structure."+ },+ {+ "number": "8",+ "name": "P04",+ "type": "bidirectional",+ "description": "Port P04 input/output with push-pull structure."+ },+ {+ "number": "9",+ "name": "P05",+ "type": "bidirectional",+ "description": "Port P05 input/output with push-pull structure."+ },+ {+ "number": "10",+ "name": "P06",+ "type": "bidirectional",+ "description": "Port P06 input/output with push-pull structure."+ },+ {+ "number": "11",+ "name": "P07",+ "type": "bidirectional",+ "description": "Port P07 input/output with push-pull structure."+ },+ {+ "number": "12",+ "name": "GND",+ "type": "power_in",+ "description": "Ground; negative supply rail."+ },+ {+ "number": "13",+ "name": "P10",+ "type": "bidirectional",+ "description": "Port P10 input/output with push-pull structure."+ },+ {+ "number": "14",+ "name": "P11",+ "type": "bidirectional",+ "description": "Port P11 input/output with push-pull structure."+ },+ {+ "number": "15",+ "name": "P12",+ "type": "bidirectional",+ "description": "Port P12 input/output with push-pull structure."+ },+ {+ "number": "16",+ "name": "P13",+ "type": "bidirectional",+ "description": "Port P13 input/output with push-pull structure."+ },+ {+ "number": "17",+ "name": "P14",+ "type": "bidirectional",+ "description": "Port P14 input/output with push-pull structure."+ },+ {+ "number": "18",+ "name": "P15",+ "type": "bidirectional",+ "description": "Port P15 input/output with push-pull structure."+ },+ {+ "number": "19",+ "name": "P16",+ "type": "bidirectional",+ "description": "Port P16 input/output with push-pull structure."+ },+ {+ "number": "20",+ "name": "P17",+ "type": "bidirectional",+ "description": "Port P17 input/output with push-pull structure."+ },+ {+ "number": "21",+ "name": "A0",+ "type": "input",+ "description": "Address input 0; connect to VCC or ground."+ },+ {+ "number": "22",+ "name": "SCL",+ "type": "bidirectional",+ "description": "Serial clock bus; connect to VCC through pullup resistor."+ },+ {+ "number": "23",+ "name": "SDA",+ "type": "bidirectional",+ "description": "Serial data bus; connect to VCC through pullup resistor."+ },+ {+ "number": "24",+ "name": "VCC",+ "type": "power_in",+ "description": "Supply voltage; 2.3V to 5.5V operating range."+ }+ ],+ "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": 12,+ "cost_usd": 0.1386,+ "at": "2026-10-05T23:00:09"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/pca9555",+ "pages": 49,+ "sha256": "f82351ef5c7f9c9c",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 24,+ "described": 24,+ "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]"+ }+}