component
FE1.1S-BQFN24BT
Public Made by Adomby adom
TERMINUS USB HUB Controllers, WQFN-24(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"slug": "fe1-1s-bqfn24bt",
"version": "0.1.0",
"type": "component",
"description": "TERMINUS USB HUB Controllers, WQFN-24(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"interface",
"fe1.1s-bqfn24bt",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"fe1-1s-bqfn24bt.kicad_sym",
"fe1-1s-bqfn24bt.kicad_mod",
"fe1-1s-bqfn24bt.glb",
"fe1-1s-bqfn24bt.step",
"fe1-1s-bqfn24bt.lbr",
"docs/hero.png",
"docs/fe1-1s-bqfn24bt-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"fe1-1s-bqfn24bt-hero.glb",
"fe1-1s-bqfn24bt-hero.overlay.json",
"fe1-1s-bqfn24bt-etched.glb"
],
"component": {
"mpn": "FE1.1S-BQFN24BT",
"manufacturer": "TERMINUS",
"package": "WQFN-24(4x4)",
"pin_count": 25,
"category": "Interface",
"subcategory": "USB HUB Controllers",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8757049312637530112",
"parts": {
"symbol": "fe1-1s-bqfn24bt.kicad_sym",
"footprint": "fe1-1s-bqfn24bt.kicad_mod",
"model_3d": "fe1-1s-bqfn24bt-hero.glb",
"model_3d_plain": "fe1-1s-bqfn24bt-etched.glb",
"model_3d_step": "fe1-1s-bqfn24bt-etched.step",
"model_3d_step_plain": "fe1-1s-bqfn24bt.step",
"lbr": "fe1-1s-bqfn24bt.lbr"
},
"distributor_links": {
"lcsc": "C5370767"
},
"distributor_check": {
"checked_at": "2026-10-17T14:39:19Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "quota"
},
"mouser": {
"pn": null,
"status": "quota"
}
},
"pins": [
{
"number": "1",
"name": "OVCJ",
"type": "input",
"description": "Active-low Over Current Sense input from an external current monitor, used for Global Over-Current Protection (Schmitt-trigger, 5V-tolerant)."
},
{
"number": "2",
"name": "TESTJ/EESDA",
"type": "bidirectional",
"description": "Active-low open-drain 3.3V I/O with internal pull-up (4mA sink); tying it low at power-on-reset enters factory test mode, otherwise leave it unconnected or connect it to external EEPROM SDA."
},
{
"number": "3",
"name": "XOUT",
"type": "output",
"description": "12MHz crystal oscillator output; the crystal must be 12MHz ±50ppm, 16pF to 20pF load capacitance, and 50Ω maximum ESR."
},
{
"number": "4",
"name": "XIN",
"type": "input",
"description": "12MHz crystal oscillator input, or external 12MHz clock input, with the same crystal requirements as XOUT."
},
{
"number": "5",
"name": "DM4",
"type": "bidirectional",
"description": "USB D- signal of the 4th downstream facing port, supporting High-, Full- and Low-Speed operation."
},
{
"number": "6",
"name": "DP4",
"type": "bidirectional",
"description": "USB D+ signal of the 4th downstream facing port, supporting High-, Full- and Low-Speed operation."
},
{
"number": "7",
"name": "DM3",
"type": "bidirectional",
"description": "USB D- signal of the 3rd downstream facing port, supporting High-, Full- and Low-Speed operation."
},
{
"number": "8",
"name": "DP3",
"type": "bidirectional",
"description": "USB D+ signal of the 3rd downstream facing port, supporting High-, Full- and Low-Speed operation."
},
{
"number": "9",
"name": "DM2",
"type": "bidirectional",
"description": "USB D- signal of the 2nd downstream facing port, supporting High-, Full- and Low-Speed operation."
},
{
"number": "10",
"name": "DP2",
"type": "bidirectional",
"description": "USB D+ signal of the 2nd downstream facing port, supporting High-, Full- and Low-Speed operation."
},
{
"number": "11",
"name": "DM1",
"type": "bidirectional",
"description": "USB D- signal of the 1st downstream facing port, supporting High-, Full- and Low-Speed operation."
},
{
"number": "12",
"name": "DP1",
"type": "bidirectional",
"description": "USB D+ signal of the 1st downstream facing port, supporting High-, Full- and Low-Speed operation."
},
{
"number": "13",
"name": "REXT",
"type": "passive",
"description": "External bias resistor pin; a 2.7kΩ (±1%) resistor must be connected to VSS to provide the internal bias reference."
},
{
"number": "14",
"name": "DMU",
"type": "bidirectional",
"description": "USB D- signal of the upstream facing port, supporting High- and Full-Speed operation."
},
{
"number": "15",
"name": "DPU",
"type": "bidirectional",
"description": "USB D+ signal of the upstream facing port, supporting High- and Full-Speed operation."
},
{
"number": "16",
"name": "XRSTJ",
"type": "input",
"description": "Active-low external reset; normally pulled up to 3.3V, and a minimum 10µs low pulse resets the chip beyond power-up."
},
{
"number": "17",
"name": "VBUSM",
"type": "input",
"description": "Upstream VBUS monitor; high indicates the host is powered and the hub operates normally, low forces the hub into power-down state."
},
{
"number": "18",
"name": "BUSJ",
"type": "input",
"description": "Power source sense; high means the hub is self-powered and can support high-power downstream devices, low means bus-powered with 100mA presumed per downstream port."
},
{
"number": "19",
"name": "VDD5",
"type": "power_in",
"description": "5V power input for the integrated 5V-to-3.3V regulator, specified at 4.5V to 5.5V; leave as No-Connection if an external 3.3V source is used."
},
{
"number": "20",
"name": "VD33F",
"type": "power_out",
"description": "3.3V filter capacitor connection for the embedded 5V-to-3.3V regulator, or a 3.3V input from an external source (specified at 3.0V to 3.6V)."
},
{
"number": "21",
"name": "DRV/CHRGEN",
"type": "bidirectional",
"description": "During power-on-reset, high enables the battery charging (Charging Hub) function; otherwise it drives the LED control with 24mA drive strength."
},
{
"number": "22",
"name": "LED1/EESCL",
"type": "bidirectional",
"description": "Port 1 and Port 3 connected indicator LED control (joint indicator for all ports when LED2 is high at power-on-reset), also the external EEPROM clock (SCL), 8mA drive."
},
{
"number": "23",
"name": "LED2/JLEDEN",
"type": "bidirectional",
"description": "Port 2 and Port 4 connected indicator LED control; tying it to 3.3V during power-on-reset enables the joint port indicator, 8mA drive."
},
{
"number": "24",
"name": "PWRJ",
"type": "output",
"description": "Active-low open-drain power enable for downstream power switching in ganged mode, used to limit in-rush current or respond to over-current (4mA sink)."
},
{
"number": "25",
"name": "VSS",
"type": "power_in",
"description": "Ground; pin 25 is the underside exposed pad of the WQFN package and must be connected to ground."
}
],
"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: Pin numbers were taken from the Pin Description Table WQFN column (page 8-10) because the page 6 pin; Pin 20 VD33F is described as both a 3.3V regulator output filter capacitor and a 3.3V external input; Pin 25 is the exposed underbelly pad and is typed as VSS/power_in per the datasheet; the datasheet d",
"2/25 pins cited to the wrong page (name found elsewhere): ['3:XOUT@p8', '4:XIN@p8']"
],
"pages_sent": 22,
"cost_usd": 0.0771,
"at": "2026-10-17T14:38:21"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8757049312637530112",
"pages": 22,
"sha256": "5677873747ef908e",
"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"
},
"models_3d": [
{
"file": "fe1-1s-bqfn24bt.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
4.0,
4.0,
0.77
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "096fc110543e6d324c5120c2d38e3dca87a389da9b6fac234f1fe40856295ef4",
"checked": "2026-10-17",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "fe1-1s-bqfn24bt-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
4.0,
4.0,
0.77
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "1070ae15e2d5acaea5ba9540f78526d85156506dbcc09bf24f01e67a9fab8dff",
"checked": "2026-10-17",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
}
}