component
NRF51802-QFAA-R
Public Made by Adomby adom
Nordic Semicon RF Transceiver ICs, UQFN-48-EP(6x6). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "nrf51802-qfaa-r",
"title": "NRF51802-QFAA-R",
"brief": "Nordic Semicon RF Transceiver ICs, UQFN-48-EP(6x6). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
"tags": [
"component",
"rf and wireless",
"nrf51802-qfaa-r",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "NRF51802-QFAA-R",
"manufacturer": "Nordic Semicon",
"package": "UQFN-48-EP(6x6)",
"pin_count": 49,
"category": "RF And Wireless",
"subcategory": "RF Transceiver ICs",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588881923989389312",
"parts": {
"symbol": "nrf51802-qfaa-r.kicad_sym",
"footprint": "nrf51802-qfaa-r.kicad_mod",
"model_3d": "nrf51802-qfaa-r-etched.glb",
"model_3d_plain": "nrf51802-qfaa-r.glb",
"model_3d_step": "nrf51802-qfaa-r-etched.step",
"model_3d_step_plain": "nrf51802-qfaa-r.step",
"lbr": "nrf51802-qfaa-r.lbr"
},
"distributor_links": {
"lcsc": "C167636",
"digikey": "4823-NRF51802-QFAA-RTR-ND",
"mouser": "949-NRF51802-QFAA-R"
},
"distributor_check": {
"checked_at": "2026-10-01T17:11:54Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "4823-NRF51802-QFAA-RTR-ND",
"status": "found"
},
"mouser": {
"pn": "949-NRF51802-QFAA-R",
"status": "found",
"lifecycle": "Obsolete"
}
},
"pins": [
{
"number": "1",
"name": "VDD",
"type": "power_in",
"description": "Power supply for the device"
},
{
"number": "2",
"name": "DCC",
"type": "power_out",
"description": "DC/DC converter output voltage to external LC filter"
},
{
"number": "3",
"name": "P0.30",
"type": "bidirectional",
"description": "General purpose I/O pin"
},
{
"number": "4",
"name": "P0.00",
"type": "bidirectional",
"description": "General purpose I/O pin; AREF0 - ADC/LPCOMP reference input 0"
},
{
"number": "5",
"name": "P0.01",
"type": "bidirectional",
"description": "General purpose I/O pin; AIN2 - ADC/LPCOMP input 2"
},
{
"number": "6",
"name": "P0.02",
"type": "bidirectional",
"description": "General purpose I/O pin; AIN3 - ADC/LPCOMP input 3"
},
{
"number": "7",
"name": "P0.03",
"type": "bidirectional",
"description": "General purpose I/O pin; AIN4 - ADC/LPCOMP input 4"
},
{
"number": "8",
"name": "P0.04",
"type": "bidirectional",
"description": "General purpose I/O pin; AIN5 - ADC/LPCOMP input 5"
},
{
"number": "9",
"name": "P0.05",
"type": "bidirectional",
"description": "General purpose I/O pin; AIN6 - ADC/LPCOMP input 6"
},
{
"number": "10",
"name": "P0.06",
"type": "bidirectional",
"description": "General purpose I/O pin; AIN7 - ADC/LPCOMP input 7; AREF1 - ADC/LPCOMP reference input 1"
},
{
"number": "11",
"name": "P0.07",
"type": "bidirectional",
"description": "General purpose I/O pin"
},
{
"number": "12",
"name": "VDD",
"type": "power_in",
"description": "Power supply for the device"
},
{
"number": "13",
"name": "VSS",
"type": "power_in",
"description": "Ground (0 V)"
},
{
"number": "14",
"name": "P0.08",
"type": "bidirectional",
"description": "General purpose I/O pin"
},
{
"number": "15",
"name": "P0.09",
"type": "bidirectional",
"description": "General purpose I/O pin"
},
{
"number": "16",
"name": "P0.10",
"type": "bidirectional",
"description": "General purpose I/O pin"
},
{
"number": "17",
"name": "P0.11",
"type": "bidirectional",
"description": "General purpose I/O pin"
},
{
"number": "18",
"name": "P0.12",
"type": "bidirectional",
"description": "General purpose I/O pin"
},
{
"number": "19",
"name": "P0.13",
"type": "bidirectional",
"description": "General purpose I/O pin"
},
{
"number": "20",
"name": "P0.14",
"type": "bidirectional",
"description": "General purpose I/O pin"
},
{
"number": "21",
"name": "P0.15",
"type": "bidirectional",
"description": "General purpose I/O pin"
},
{
"number": "22",
"name": "P0.16",
"type": "bidirectional",
"description": "General purpose I/O pin"
},
{
"number": "23",
"name": "SWDIO/nRESET",
"type": "bidirectional",
"description": "System reset (active low); also hardware debug and flash programming I/O"
},
{
"number": "24",
"name": "SWDCLK",
"type": "input",
"description": "Hardware debug and flash programming clock input"
},
{
"number": "25",
"name": "P0.17",
"type": "bidirectional",
"description": "General purpose I/O pin"
},
{
"number": "26",
"name": "P0.18",
"type": "bidirectional",
"description": "General purpose I/O pin"
},
{
"number": "27",
"name": "P0.19",
"type": "bidirectional",
"description": "General purpose I/O pin"
},
{
"number": "28",
"name": "P0.20",
"type": "bidirectional",
"description": "General purpose I/O pin"
},
{
"number": "29",
"name": "DEC2",
"type": "passive",
"description": "Power supply decoupling capacitor connection"
},
{
"number": "30",
"name": "VDD_PA",
"type": "power_out",
"description": "Power supply output (+1.6 V) for on-chip RF power amplifier"
},
{
"number": "31",
"name": "ANT1",
"type": "bidirectional",
"description": "Differential antenna connection for TX and RX"
},
{
"number": "32",
"name": "ANT2",
"type": "bidirectional",
"description": "Differential antenna connection for TX and RX"
},
{
"number": "33",
"name": "VSS",
"type": "power_in",
"description": "Ground (0 V)"
},
{
"number": "34",
"name": "VSS",
"type": "power_in",
"description": "Ground (0 V)"
},
{
"number": "35",
"name": "AVDD",
"type": "power_in",
"description": "Analog power supply for radio"
},
{
"number": "36",
"name": "AVDD",
"type": "power_in",
"description": "Analog power supply for radio"
},
{
"number": "37",
"name": "XC1",
"type": "input",
"description": "Connection for 16/32 MHz crystal or external 16 MHz clock reference"
},
{
"number": "38",
"name": "XC2",
"type": "output",
"description": "Connection for 16/32 MHz crystal"
},
{
"number": "39",
"name": "DEC1",
"type": "passive",
"description": "Power supply decoupling capacitor connection"
},
{
"number": "40",
"name": "P0.21",
"type": "bidirectional",
"description": "General purpose I/O pin"
},
{
"number": "41",
"name": "P0.22",
"type": "bidirectional",
"description": "General purpose I/O pin"
},
{
"number": "42",
"name": "P0.23",
"type": "bidirectional",
"description": "General purpose I/O pin"
},
{
"number": "43",
"name": "P0.24",
"type": "bidirectional",
"description": "General purpose I/O pin"
},
{
"number": "44",
"name": "P0.25",
"type": "bidirectional",
"description": "General purpose I/O pin"
},
{
"number": "45",
"name": "P0.26",
"type": "bidirectional",
"description": "General purpose I/O pin; AIN0 - ADC/LPCOMP input 0; XL2 - connection for 32.768 kHz crystal"
},
{
"number": "46",
"name": "P0.27",
"type": "bidirectional",
"description": "General purpose I/O pin; AIN1 - ADC/LPCOMP input 1; XL1 - connection for 32.768 kHz crystal or external clock reference"
},
{
"number": "47",
"name": "P0.28",
"type": "bidirectional",
"description": "General purpose I/O pin"
},
{
"number": "48",
"name": "P0.29",
"type": "bidirectional",
"description": "General purpose I/O pin"
},
{
"number": "49",
"name": "EP",
"type": "passive",
"description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
}
],
"provenance": {
"extractor": "extract_pins 0.2",
"factory_chain": {
"factory": "2.0.0",
"extractor": "extract_pins 0.2",
"primary_model": "claude-haiku-4-5-20251001",
"primary_mode": "text",
"consensus_model": "claude-sonnet-4-6",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: Crystal oscillator pins (XC1/XC2, XL1/XL2) classified as input/output based on datasheet labels, but; GPIO pins with dual analog/digital functions (P0.00-P0.06, P0.26-P0.27) classified as bidirectional ; ANT1/ANT2 RF pins classified as bidirectional for TX/RX operation; alternatively could be classified",
"12/49 pins cited to the wrong page (name found elsewhere): ['15:P0.09@p10', '16:P0.10@p10', '17:P0.11@p10', '18:P0.12@p10']"
],
"pages_sent": 85,
"cost_usd": 0.62,
"at": "2026-10-01T17:11:26"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588881923989389312",
"pages": 85,
"sha256": "d469441480edb974",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 49,
"described": 49,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
}
},
"metadata": {
"specs": {
"Manufacturer": "Nordic Semicon",
"Package": "UQFN-48-EP(6x6)",
"Category": "RF And Wireless",
"Pins": "49"
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"nrf51802-qfaa-r"
],
"discovery_pitch": "NRF51802-QFAA-R (Nordic Semicon) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray",
"email": "[email protected]"
},
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
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"visibility": {
"public": true
}
}