component
TCA6408AQPWRQ1
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Texas Instruments I/O Expanders, TSSOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+53@@ -0,0 +1,53 @@+# TCA6408AQPWRQ1++**Texas Instruments** · I/O Expanders · TSSOP-16++TCA6408AQPWRQ1 from Texas Instruments, in a TSSOP-16. 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 | VCCI | power_in | Supply voltage for I2C bus; operating voltage range 1.65V to 3.6V; provides voltage level translation. |+| 2 | ADDR | input | Address input; connect directly to VCCP or ground for device selection. |+| 3 | RESET | input | Active-low reset input; VIH = 0.7×VCCI to 3.6V, VIL = -0.5 to 0.3×VCCI; connect to VCCI through pull-up resistor if not actively controlled. |+| 4 | P0 | bidirectional | P-port 0 push-pull input-output; configurable as input or output, defaults to input at power-on; output voltage VO = 0 to VCCP. |+| 5 | P1 | bidirectional | P-port 1 push-pull input-output; configurable as input or output, defaults to input at power-on; output voltage VO = 0 to VCCP. |+| 6 | P2 | bidirectional | P-port 2 push-pull input-output; configurable as input or output, defaults to input at power-on; output voltage VO = 0 to VCCP. |+| 7 | P3 | bidirectional | P-port 3 push-pull input-output; configurable as input or output, defaults to input at power-on; output voltage VO = 0 to VCCP. |+| 8 | GND | power_in | Ground; return path for supply currents. |+| 9 | P4 | bidirectional | P-port 4 push-pull input-output; configurable as input or output, defaults to input at power-on; output voltage VO = 0 to VCCP. |+| 10 | P5 | bidirectional | P-port 5 push-pull input-output; configurable as input or output, defaults to input at power-on; output voltage VO = 0 to VCCP. |+| 11 | P6 | bidirectional | P-port 6 push-pull input-output; configurable as input or output, defaults to input at power-on; output voltage VO = 0 to VCCP. |+| 12 | P7 | bidirectional | P-port 7 push-pull input-output; configurable as input or output, defaults to input at power-on; output voltage VO = 0 to VCCP. |+| 13 | INT | output | Open-drain active-low interrupt output; maximum continuous output current IOL = 25mA for VO = 0 to VCCI; connect to VCCI through pull-up resistor. |+| 14 | SCL | input | Serial clock bus input for I2C/SMBus interface; VIH = 0.7×VCCI to VCCI, VIL = -0.5 to 0.3×VCCI; connect to VCCI through pull-up resistor. |+| 15 | SDA | bidirectional | Serial data bus input-output for I2C/SMBus interface; VIH = 0.7×VCCI to VCCI, VIL = -0.5 to 0.3×VCCI; maximum output current IOL = 25mA; connect to VCCI through pull-up resistor. |+| 16 | VCCP | power_in | Supply voltage for P-ports; operating voltage range 1.65V to 3.6V; maximum continuous current ICC = 160mA. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | TSSOP-16 |+| Category | Interface |+| Pins | 16 |++## CAD (KiCad official)++- Symbol: `TCA6408AQPWRQ1`+- Footprint: `Package_SO:TSSOP-16_4.4x5mm_P0.65mm`+- 3D model: TSSOP-16 (KiCad packages3D, STEP)+- 3D model files: `tca6408aqpwrq1-etched.step` / `tca6408aqpwrq1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tca6408aqpwrq1.step` / `tca6408aqpwrq1.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/tca6408a-q1) (41 pp, sha256 `edb72d360821dab7`, 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/tca6408aqpwrq1-datasheet.pdf)
page.jsonadded+204@@ -0,0 +1,204 @@+{+ "slug": "tca6408aqpwrq1",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments I/O Expanders, TSSOP-16. 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operating voltage range 1.65V to 3.6V; provides voltage level translation."+ },+ {+ "number": "2",+ "name": "ADDR",+ "type": "input",+ "description": "Address input; connect directly to VCCP or ground for device selection."+ },+ {+ "number": "3",+ "name": "RESET",+ "type": "input",+ "description": "Active-low reset input; VIH = 0.7×VCCI to 3.6V, VIL = -0.5 to 0.3×VCCI; connect to VCCI through pull-up resistor if not actively controlled."+ },+ {+ "number": "4",+ "name": "P0",+ "type": "bidirectional",+ "description": "P-port 0 push-pull input-output; configurable as input or output, defaults to input at power-on; output voltage VO = 0 to VCCP."+ },+ {+ "number": "5",+ "name": "P1",+ "type": "bidirectional",+ "description": "P-port 1 push-pull input-output; configurable as input or output, defaults to input at power-on; output voltage VO = 0 to VCCP."+ },+ {+ "number": "6",+ "name": "P2",+ "type": "bidirectional",+ "description": "P-port 2 push-pull input-output; configurable as input or output, defaults to input at power-on; output voltage VO = 0 to VCCP."+ },+ {+ "number": "7",+ "name": "P3",+ "type": "bidirectional",+ "description": "P-port 3 push-pull input-output; configurable as input or output, defaults to input at power-on; output voltage VO = 0 to VCCP."+ },+ {+ "number": "8",+ "name": "GND",+ "type": "power_in",+ "description": "Ground; return path for supply currents."+ },+ {+ "number": "9",+ "name": "P4",+ "type": "bidirectional",+ "description": "P-port 4 push-pull input-output; configurable as input or output, defaults to input at power-on; output voltage VO = 0 to VCCP."+ },+ {+ "number": "10",+ "name": "P5",+ "type": "bidirectional",+ "description": "P-port 5 push-pull input-output; configurable as input or output, defaults to input at power-on; output voltage VO = 0 to VCCP."+ },+ {+ "number": "11",+ "name": "P6",+ "type": "bidirectional",+ "description": "P-port 6 push-pull input-output; configurable as input or output, defaults to input at power-on; output voltage VO = 0 to VCCP."+ },+ {+ "number": "12",+ "name": "P7",+ "type": "bidirectional",+ "description": "P-port 7 push-pull input-output; configurable as input or output, defaults to input at power-on; output voltage VO = 0 to VCCP."+ },+ {+ "number": "13",+ "name": "INT",+ "type": "output",+ "description": "Open-drain active-low interrupt output; maximum continuous output current IOL = 25mA for VO = 0 to VCCI; connect to VCCI through pull-up resistor."+ },+ {+ "number": "14",+ "name": "SCL",+ "type": "input",+ "description": "Serial clock bus input for I2C/SMBus interface; VIH = 0.7×VCCI to VCCI, VIL = -0.5 to 0.3×VCCI; connect to VCCI through pull-up resistor."+ },+ {+ "number": "15",+ "name": "SDA",+ "type": "bidirectional",+ "description": "Serial data bus input-output for I2C/SMBus interface; VIH = 0.7×VCCI to VCCI, VIL = -0.5 to 0.3×VCCI; maximum output current IOL = 25mA; connect to VCCI through pull-up resistor."+ },+ {+ "number": "16",+ "name": "VCCP",+ "type": "power_in",+ "description": "Supply voltage for P-ports; operating voltage range 1.65V to 3.6V; maximum continuous current ICC = 160mA."+ }+ ],+ "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": 7,+ "cost_usd": 0.0841,+ "at": "2026-10-01T06:54:00"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/tca6408a-q1",+ "pages": 41,+ "sha256": "edb72d360821dab7",+ "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"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}