component
TCA6408AQPWRQ1
Public Made by Adomby adom
Texas Instruments I/O Expanders, TSSOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"slug": "tca6408aqpwrq1",
"version": "0.1.0",
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"description": "Texas Instruments I/O Expanders, TSSOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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"component": {
"mpn": "TCA6408AQPWRQ1",
"manufacturer": "Texas Instruments",
"package": "TSSOP-16",
"pin_count": 16,
"category": "Interface",
"subcategory": "I/O Expanders",
"datasheet": "https://www.ti.com/cn/lit/gpn/tca6408a-q1",
"parts": {
"symbol": "tca6408aqpwrq1.kicad_sym",
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"lbr": "tca6408aqpwrq1.lbr"
},
"distributor_links": {
"lcsc": "C201668",
"digikey": "296-44902-2-ND",
"mouser": "595-TCA6408AQPWRQ1"
},
"distributor_check": {
"checked_at": "2026-10-01T06:54:17Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "296-44902-2-ND",
"status": "found",
"lifecycle": "Active"
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"pn": "595-TCA6408AQPWRQ1",
"status": "found"
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},
"pins": [
{
"number": "1",
"name": "VCCI",
"type": "power_in",
"description": "Supply voltage for I2C bus; 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\u00d7VCCI to 3.6V, VIL = -0.5 to 0.3\u00d7VCCI; 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\u00d7VCCI to VCCI, VIL = -0.5 to 0.3\u00d7VCCI; 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\u00d7VCCI to VCCI, VIL = -0.5 to 0.3\u00d7VCCI; 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
}
},
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