component
PCA9554ADBR
Public Made by Adomby adom
Texas Instruments I/O Expanders, SSOP-16-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+53@@ -0,0 +1,53 @@+# PCA9554ADBR++**Texas Instruments** · I/O Expanders · SSOP-16-208mil++PCA9554ADBR from Texas Instruments, in a SSOP-16-208mil. 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 | A0 | input | Address input. Connect directly to VCC or ground. |+| 2 | A1 | input | Address input. Connect directly to VCC or ground. |+| 3 | A2 | input | Address input. Connect directly to VCC or ground. |+| 4 | P0 | bidirectional | P-port input/output. Push-pull design structure. |+| 5 | P1 | bidirectional | P-port input/output. Push-pull design structure. |+| 6 | P2 | bidirectional | P-port input/output. Push-pull design structure. |+| 7 | P3 | bidirectional | P-port input/output. Push-pull design structure. |+| 8 | GND | power_in | Ground. |+| 9 | P4 | bidirectional | P-port input/output. Push-pull design structure. |+| 10 | P5 | bidirectional | P-port input/output. Push-pull design structure. |+| 11 | P6 | bidirectional | P-port input/output. Push-pull design structure. |+| 12 | P7 | bidirectional | P-port input/output. Push-pull design structure. |+| 13 | INT | output | Open-drain, active-low interrupt output. Connect to VCC through a pullup resistor. |+| 14 | SCL | input | Serial clock bus. Connect to VCC through a pullup resistor. |+| 15 | SDA | bidirectional | Serial data bus. Connect to VCC through a pullup resistor. |+| 16 | VCC | power_in | Supply voltage. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SSOP-16-208mil |+| Category | Interface |+| Pins | 16 |++## CAD (KiCad official)++- Symbol: `PCA9554ADBR`+- Footprint: `Package_SO:SSOP-16_5.3x6.2mm_P0.65mm`+- 3D model: SSOP-16-208mil (KiCad packages3D, STEP)+- 3D model files: `pca9554adbr-etched.step` / `pca9554adbr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `pca9554adbr.step` / `pca9554adbr.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/pca9554a) (42 pp, sha256 `6104cd12b57d2d07`, retrieved 2026-10-08, 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-5-5` (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/pca9554adbr-datasheet.pdf)
page.jsonadded+247@@ -0,0 +1,247 @@+{+ "slug": "pca9554adbr",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments I/O Expanders, SSOP-16-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "interface",+ "pca9554adbr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "pca9554adbr.kicad_sym",+ "pca9554adbr.kicad_mod",+ "pca9554adbr.glb",+ "pca9554adbr.step",+ "pca9554adbr.lbr",+ "docs/hero.png",+ "docs/pca9554adbr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "pca9554adbr-hero.glb",+ "pca9554adbr-hero.overlay.json"+ ],+ "component": {+ "mpn": "PCA9554ADBR",+ "manufacturer": "Texas Instruments",+ "package": "SSOP-16-208mil",+ "pin_count": 16,+ "category": "Interface",+ "subcategory": "I/O Expanders",+ "datasheet": "https://www.ti.com/cn/lit/gpn/pca9554a",+ "parts": {+ "symbol": "pca9554adbr.kicad_sym",+ "footprint": "pca9554adbr.kicad_mod",+ "model_3d": "pca9554adbr-hero.glb",+ "model_3d_plain": "pca9554adbr.glb",+ "model_3d_step": "pca9554adbr-etched.step",+ "model_3d_step_plain": "pca9554adbr.step",+ "lbr": "pca9554adbr.lbr"+ },+ "distributor_links": {+ "lcsc": "C2669752",+ "digikey": "296-21777-2-ND"+ },+ "distributor_check": {+ "checked_at": "2026-10-08T02:10:41Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-21777-2-ND",+ "status": "found",+ "lifecycle": "Obsolete"+ },+ "mouser": {+ "pn": null,+ "status": "error"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "A0",+ "type": "input",+ "description": "Address input. Connect directly to VCC or ground."+ },+ {+ "number": "2",+ "name": "A1",+ "type": "input",+ "description": "Address input. Connect directly to VCC or ground."+ },+ {+ "number": "3",+ "name": "A2",+ "type": "input",+ "description": "Address input. Connect directly to VCC or ground."+ },+ {+ "number": "4",+ "name": "P0",+ "type": "bidirectional",+ "description": "P-port input/output. Push-pull design structure."+ },+ {+ "number": "5",+ "name": "P1",+ "type": "bidirectional",+ "description": "P-port input/output. Push-pull design structure."+ },+ {+ "number": "6",+ "name": "P2",+ "type": "bidirectional",+ "description": "P-port input/output. Push-pull design structure."+ },+ {+ "number": "7",+ "name": "P3",+ "type": "bidirectional",+ "description": "P-port input/output. Push-pull design structure."+ },+ {+ "number": "8",+ "name": "GND",+ "type": "power_in",+ "description": "Ground."+ },+ {+ "number": "9",+ "name": "P4",+ "type": "bidirectional",+ "description": "P-port input/output. Push-pull design structure."+ },+ {+ "number": "10",+ "name": "P5",+ "type": "bidirectional",+ "description": "P-port input/output. Push-pull design structure."+ },+ {+ "number": "11",+ "name": "P6",+ "type": "bidirectional",+ "description": "P-port input/output. Push-pull design structure."+ },+ {+ "number": "12",+ "name": "P7",+ "type": "bidirectional",+ "description": "P-port input/output. Push-pull design structure."+ },+ {+ "number": "13",+ "name": "INT",+ "type": "output",+ "description": "Open-drain, active-low interrupt output. Connect to VCC through a pullup resistor."+ },+ {+ "number": "14",+ "name": "SCL",+ "type": "input",+ "description": "Serial clock bus. Connect to VCC through a pullup resistor."+ },+ {+ "number": "15",+ "name": "SDA",+ "type": "bidirectional",+ "description": "Serial data bus. Connect to VCC through a pullup resistor."+ },+ {+ "number": "16",+ "name": "VCC",+ "type": "power_in",+ "description": "Supply voltage."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "primary_model": "claude-haiku-5-5",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "extractor flagged: The MPN PCA9554ADBR does not appear in the Package Option Addendum (page 26). The only DB-package or; Pin numbers for the DB (SSOP) package are taken from the shared SOIC/SSOP/TSSOP/TVSOP column of Tabl; The datasheet does not state the signal direction of SCL and SDA explicitly. SCL is typed as input a"+ ],+ "pages_sent": 12,+ "cost_usd": 0.0685,+ "at": "2026-10-08T02:10:23"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/pca9554a",+ "pages": 42,+ "sha256": "6104cd12b57d2d07",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 16,+ "described": 16,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ },+ "models_3d": [+ {+ "file": "pca9554adbr.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 7.8,+ 6.2,+ 2.1+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "d0e11e46aeca5dbaa5c4bb538f3f4899761267cabdeba6486325ae9e979c03ef",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "pca9554adbr-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 7.8,+ 6.2,+ 2.1+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "41fccab233aeb751ed0be4636b93e5b5f9b63dd0fed3c106707bd1e247dac7fa",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}