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TCA9539RGER
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+61@@ -0,0 +1,61 @@+# TCA9539RGER++**Texas Instruments** · I/O Expanders · VQFN-24-EP(4x4)++TCA9539RGER 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 | Parallel I/O port P00 with push-pull design structure, configured as input at power-on |+| 2 | P01 | bidirectional | Parallel I/O port P01 with push-pull design structure, configured as input at power-on |+| 3 | P02 | bidirectional | Parallel I/O port P02 with push-pull design structure, configured as input at power-on |+| 4 | P03 | bidirectional | Parallel I/O port P03 with push-pull design structure, configured as input at power-on |+| 5 | P04 | bidirectional | Parallel I/O port P04 with push-pull design structure, configured as input at power-on |+| 6 | P05 | bidirectional | Parallel I/O port P05 with push-pull design structure, configured as input at power-on |+| 7 | P06 | bidirectional | Parallel I/O port P06 with push-pull design structure, configured as input at power-on |+| 8 | P07 | bidirectional | Parallel I/O port P07 with push-pull design structure, configured as input at power-on |+| 9 | GND | power_in | Ground reference connection |+| 10 | P10 | bidirectional | Parallel I/O port P10 with push-pull design structure, configured as input at power-on |+| 11 | P11 | bidirectional | Parallel I/O port P11 with push-pull design structure, configured as input at power-on |+| 12 | P12 | bidirectional | Parallel I/O port P12 with push-pull design structure, configured as input at power-on |+| 13 | P13 | bidirectional | Parallel I/O port P13 with push-pull design structure, configured as input at power-on |+| 14 | P14 | bidirectional | Parallel I/O port P14 with push-pull design structure, configured as input at power-on |+| 15 | P15 | bidirectional | Parallel I/O port P15 with push-pull design structure, configured as input at power-on |+| 16 | P16 | bidirectional | Parallel I/O port P16 with push-pull design structure, configured as input at power-on |+| 17 | P17 | bidirectional | Parallel I/O port P17 with push-pull design structure, configured as input at power-on |+| 18 | A0 | input | Address selection input pin, connect directly to VCC or ground |+| 19 | SCL | input | I2C serial clock input, connect to VCC through a pull-up resistor |+| 20 | SDA | tri_state | I2C serial data line (open-drain), connect to VCC through a pull-up resistor |+| 21 | VCC | power_out | Supply voltage (1.65 V to 5.5 V operating range) |+| 22 | INT | tri_state | Open-drain interrupt output, connect to VCC through a pull-up resistor |+| 23 | A1 | input | Address selection input pin, connect directly to VCC or ground |+| 24 | RESET | input | Active-low reset input, connect to VCC through a pull-up resistor if no active connection used |+| 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: `TCA9539RGER`+- 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: `tca9539rger-etched.step` / `tca9539rger-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tca9539rger.step` / `tca9539rger.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/tca9539) (49 pp, sha256 `fec29f61c247a467`, retrieved 2026-10-01, tier: lcsc)+- **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/tca9539rger-datasheet.pdf)
page.jsonadded+261@@ -0,0 +1,261 @@+{+ "slug": "tca9539rger",+ "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",+ "tca9539rger",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "tca9539rger.kicad_sym",+ "tca9539rger.kicad_mod",+ "tca9539rger.glb",+ "tca9539rger.step",+ "tca9539rger.lbr",+ "docs/hero.png",+ "docs/tca9539rger-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "TCA9539RGER",+ "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/tca9539",+ "parts": {+ "symbol": "tca9539rger.kicad_sym",+ "footprint": "tca9539rger.kicad_mod",+ "model_3d": "tca9539rger-etched.glb",+ "model_3d_plain": "tca9539rger.glb",+ "model_3d_step": "tca9539rger-etched.step",+ "model_3d_step_plain": "tca9539rger.step",+ "lbr": "tca9539rger.lbr"+ },+ "distributor_links": {+ "lcsc": "C2652324",+ "digikey": "296-44209-2-ND",+ "mouser": "595-TCA9539RGER"+ },+ "distributor_check": {+ "checked_at": "2026-10-01T06:55:24Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-44209-2-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "595-TCA9539RGER",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "P00",+ "type": "bidirectional",+ "description": "Parallel I/O port P00 with push-pull design structure, configured as input at power-on"+ },+ {+ "number": "2",+ "name": "P01",+ "type": "bidirectional",+ "description": "Parallel I/O port P01 with push-pull design structure, configured as input at power-on"+ },+ {+ "number": "3",+ "name": "P02",+ "type": "bidirectional",+ "description": "Parallel I/O port P02 with push-pull design structure, configured as input at power-on"+ },+ {+ "number": "4",+ "name": "P03",+ "type": "bidirectional",+ "description": "Parallel I/O port P03 with push-pull design structure, configured as input at power-on"+ },+ {+ "number": "5",+ "name": "P04",+ "type": "bidirectional",+ "description": "Parallel I/O port P04 with push-pull design structure, configured as input at power-on"+ },+ {+ "number": "6",+ "name": "P05",+ "type": "bidirectional",+ "description": "Parallel I/O port P05 with push-pull design structure, configured as input at power-on"+ },+ {+ "number": "7",+ "name": "P06",+ "type": "bidirectional",+ "description": "Parallel I/O port P06 with push-pull design structure, configured as input at power-on"+ },+ {+ "number": "8",+ "name": "P07",+ "type": "bidirectional",+ "description": "Parallel I/O port P07 with push-pull design structure, configured as input at power-on"+ },+ {+ "number": "9",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference connection"+ },+ {+ "number": "10",+ "name": "P10",+ "type": "bidirectional",+ "description": "Parallel I/O port P10 with push-pull design structure, configured as input at power-on"+ },+ {+ "number": "11",+ "name": "P11",+ "type": "bidirectional",+ "description": "Parallel I/O port P11 with push-pull design structure, configured as input at power-on"+ },+ {+ "number": "12",+ "name": "P12",+ "type": "bidirectional",+ "description": "Parallel I/O port P12 with push-pull design structure, configured as input at power-on"+ },+ {+ "number": "13",+ "name": "P13",+ "type": "bidirectional",+ "description": "Parallel I/O port P13 with push-pull design structure, configured as input at power-on"+ },+ {+ "number": "14",+ "name": "P14",+ "type": "bidirectional",+ "description": "Parallel I/O port P14 with push-pull design structure, configured as input at power-on"+ },+ {+ "number": "15",+ "name": "P15",+ "type": "bidirectional",+ "description": "Parallel I/O port P15 with push-pull design structure, configured as input at power-on"+ },+ {+ "number": "16",+ "name": "P16",+ "type": "bidirectional",+ "description": "Parallel I/O port P16 with push-pull design structure, configured as input at power-on"+ },+ {+ "number": "17",+ "name": "P17",+ "type": "bidirectional",+ "description": "Parallel I/O port P17 with push-pull design structure, configured as input at power-on"+ },+ {+ "number": "18",+ "name": "A0",+ "type": "input",+ "description": "Address selection input pin, connect directly to VCC or ground"+ },+ {+ "number": "19",+ "name": "SCL",+ "type": "input",+ "description": "I2C serial clock input, connect to VCC through a pull-up resistor"+ },+ {+ "number": "20",+ "name": "SDA",+ "type": "tri_state",+ "description": "I2C serial data line (open-drain), connect to VCC through a pull-up resistor"+ },+ {+ "number": "21",+ "name": "VCC",+ "type": "power_out",+ "description": "Supply voltage (1.65 V to 5.5 V operating range)"+ },+ {+ "number": "22",+ "name": "INT",+ "type": "tri_state",+ "description": "Open-drain interrupt output, connect to VCC through a pull-up resistor"+ },+ {+ "number": "23",+ "name": "A1",+ "type": "input",+ "description": "Address selection input pin, connect directly to VCC or ground"+ },+ {+ "number": "24",+ "name": "RESET",+ "type": "input",+ "description": "Active-low reset input, connect to VCC through a pull-up resistor if no active connection used"+ },+ {+ "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": [+ "extractor flagged: Exposed center pad (EP) shown in package diagram on page 3 is not listed in pin functions table and ",+ "exposed pad 25 added from the footprint"+ ],+ "pages_sent": 12,+ "cost_usd": 0.1707,+ "at": "2026-10-01T06:55:08"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/tca9539",+ "pages": 49,+ "sha256": "fec29f61c247a467",+ "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]"+ }+}