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PCF8575RGER
Public Made by Adomby adom
Texas Instruments I/O Expanders, VQFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+62@@ -0,0 +1,62 @@+# PCF8575RGER++**Texas Instruments** · I/O Expanders · VQFN-24-EP(4x4)++PCF8575RGER from Texas Instruments, in a VQFN-24-EP(4x4). 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 | P00 | bidirectional | P-port input/output. Push-pull design structure. |+| 2 | P01 | bidirectional | P-port input/output. Push-pull design structure. |+| 3 | P02 | bidirectional | P-port input/output. Push-pull design structure. |+| 4 | P03 | bidirectional | P-port input/output. Push-pull design structure. |+| 5 | P04 | bidirectional | P-port input/output. Push-pull design structure. |+| 6 | P05 | bidirectional | P-port input/output. Push-pull design structure. |+| 7 | P06 | bidirectional | P-port input/output. Push-pull design structure. |+| 8 | P07 | bidirectional | P-port input/output. Push-pull design structure. |+| 9 | GND | power_in | Ground |+| 10 | P10 | bidirectional | P-port input/output. Push-pull design structure. |+| 11 | P11 | bidirectional | P-port input/output. Push-pull design structure. |+| 12 | P12 | bidirectional | P-port input/output. Push-pull design structure. |+| 13 | P13 | bidirectional | P-port input/output. Push-pull design structure. |+| 14 | P14 | bidirectional | P-port input/output. Push-pull design structure. |+| 15 | P15 | bidirectional | P-port input/output. Push-pull design structure. |+| 16 | P16 | bidirectional | P-port input/output. Push-pull design structure. |+| 17 | P17 | bidirectional | P-port input/output. Push-pull design structure. |+| 18 | A0 | input | Address input 0. Connect directly to VCC or ground. Pull-up resistors are not needed. |+| 19 | SCL | input | Serial clock line. Connect to VCC through a pull-up resistor |+| 20 | SDA | bidirectional | Serial data line. Connect to VCC through a pull-up resistor. |+| 21 | VCC | power_out | Supply voltage |+| 22 | INT | output | Interrupt output. Connect to VCC through a pull-up resistor. |+| 23 | A1 | input | Address input 1. Connect directly to VCC or ground. Pull-up resistors are not needed. |+| 24 | A2 | input | Address input 2. Connect directly to VCC or ground. Pull-up resistors are not needed. |+| 25 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | VQFN-24-EP(4x4) |+| Category | Interface |+| Pins | 25 |++## CAD (KiCad official)++- Symbol: `PCF8575RGER`+- Footprint: `Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm`+- 3D model: VQFN-24-EP(4x4) (KiCad packages3D, STEP)+- 3D model files: `pcf8575rger-etched.step` / `pcf8575rger-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `pcf8575rger.step` / `pcf8575rger.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/pcf8575) (44 pp, sha256 `259c563b4e0ee0da`, retrieved 2026-10-01, 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/pcf8575rger-datasheet.pdf)
page.jsonadded+260@@ -0,0 +1,260 @@+{+ "slug": "pcf8575rger",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments I/O Expanders, VQFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "interface",+ "pcf8575rger",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "pcf8575rger.kicad_sym",+ "pcf8575rger.kicad_mod",+ "pcf8575rger.glb",+ "pcf8575rger.step",+ "pcf8575rger.lbr",+ "docs/hero.png",+ "docs/pcf8575rger-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "PCF8575RGER",+ "manufacturer": "Texas Instruments",+ "package": "VQFN-24-EP(4x4)",+ "pin_count": 25,+ "category": "Interface",+ "subcategory": "I/O Expanders",+ "datasheet": "https://www.ti.com/cn/lit/gpn/pcf8575",+ "parts": {+ "symbol": "pcf8575rger.kicad_sym",+ "footprint": "pcf8575rger.kicad_mod",+ "model_3d": "pcf8575rger-etched.glb",+ "model_3d_plain": "pcf8575rger.glb",+ "model_3d_step": "pcf8575rger-etched.step",+ "model_3d_step_plain": "pcf8575rger.step",+ "lbr": "pcf8575rger.lbr"+ },+ "distributor_links": {+ "lcsc": "C2669747",+ "digikey": "296-20982-2-ND",+ "mouser": "595-PCF8575RGER"+ },+ "distributor_check": {+ "checked_at": "2026-10-01T01:23:54Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-20982-2-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "595-PCF8575RGER",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "P00",+ "type": "bidirectional",+ "description": "P-port input/output. Push-pull design structure."+ },+ {+ "number": "2",+ "name": "P01",+ "type": "bidirectional",+ "description": "P-port input/output. Push-pull design structure."+ },+ {+ "number": "3",+ "name": "P02",+ "type": "bidirectional",+ "description": "P-port input/output. Push-pull design structure."+ },+ {+ "number": "4",+ "name": "P03",+ "type": "bidirectional",+ "description": "P-port input/output. Push-pull design structure."+ },+ {+ "number": "5",+ "name": "P04",+ "type": "bidirectional",+ "description": "P-port input/output. Push-pull design structure."+ },+ {+ "number": "6",+ "name": "P05",+ "type": "bidirectional",+ "description": "P-port input/output. Push-pull design structure."+ },+ {+ "number": "7",+ "name": "P06",+ "type": "bidirectional",+ "description": "P-port input/output. Push-pull design structure."+ },+ {+ "number": "8",+ "name": "P07",+ "type": "bidirectional",+ "description": "P-port input/output. Push-pull design structure."+ },+ {+ "number": "9",+ "name": "GND",+ "type": "power_in",+ "description": "Ground"+ },+ {+ "number": "10",+ "name": "P10",+ "type": "bidirectional",+ "description": "P-port input/output. Push-pull design structure."+ },+ {+ "number": "11",+ "name": "P11",+ "type": "bidirectional",+ "description": "P-port input/output. Push-pull design structure."+ },+ {+ "number": "12",+ "name": "P12",+ "type": "bidirectional",+ "description": "P-port input/output. Push-pull design structure."+ },+ {+ "number": "13",+ "name": "P13",+ "type": "bidirectional",+ "description": "P-port input/output. Push-pull design structure."+ },+ {+ "number": "14",+ "name": "P14",+ "type": "bidirectional",+ "description": "P-port input/output. Push-pull design structure."+ },+ {+ "number": "15",+ "name": "P15",+ "type": "bidirectional",+ "description": "P-port input/output. Push-pull design structure."+ },+ {+ "number": "16",+ "name": "P16",+ "type": "bidirectional",+ "description": "P-port input/output. Push-pull design structure."+ },+ {+ "number": "17",+ "name": "P17",+ "type": "bidirectional",+ "description": "P-port input/output. Push-pull design structure."+ },+ {+ "number": "18",+ "name": "A0",+ "type": "input",+ "description": "Address input 0. Connect directly to VCC or ground. Pull-up resistors are not needed."+ },+ {+ "number": "19",+ "name": "SCL",+ "type": "input",+ "description": "Serial clock line. Connect to VCC through a pull-up resistor"+ },+ {+ "number": "20",+ "name": "SDA",+ "type": "bidirectional",+ "description": "Serial data line. Connect to VCC through a pull-up resistor."+ },+ {+ "number": "21",+ "name": "VCC",+ "type": "power_out",+ "description": "Supply voltage"+ },+ {+ "number": "22",+ "name": "INT",+ "type": "output",+ "description": "Interrupt output. Connect to VCC through a pull-up resistor."+ },+ {+ "number": "23",+ "name": "A1",+ "type": "input",+ "description": "Address input 1. Connect directly to VCC or ground. Pull-up resistors are not needed."+ },+ {+ "number": "24",+ "name": "A2",+ "type": "input",+ "description": "Address input 2. Connect directly to VCC or ground. Pull-up resistors are not needed."+ },+ {+ "number": "25",+ "name": "EP",+ "type": "passive",+ "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."+ }+ ],+ "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": [+ "exposed pad 25 added from the footprint"+ ],+ "pages_sent": 8,+ "cost_usd": 0.1135,+ "at": "2026-10-01T01:23:38"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/pcf8575",+ "pages": 44,+ "sha256": "259c563b4e0ee0da",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 25,+ "described": 25,+ "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]"+ }+}