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NRF51802-QFAA-R
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Nordic Semicon RF Transceiver ICs, UQFN-48-EP(6x6). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+85@@ -0,0 +1,85 @@+# NRF51802-QFAA-R++**Nordic Semicon** · RF Transceiver ICs · UQFN-48-EP(6x6)++NRF51802-QFAA-R from Nordic Semicon, in a UQFN-48-EP(6x6). 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 | VDD | power_in | Power supply for the device |+| 2 | DCC | power_out | DC/DC converter output voltage to external LC filter |+| 3 | P0.30 | bidirectional | General purpose I/O pin |+| 4 | P0.00 | bidirectional | General purpose I/O pin; AREF0 - ADC/LPCOMP reference input 0 |+| 5 | P0.01 | bidirectional | General purpose I/O pin; AIN2 - ADC/LPCOMP input 2 |+| 6 | P0.02 | bidirectional | General purpose I/O pin; AIN3 - ADC/LPCOMP input 3 |+| 7 | P0.03 | bidirectional | General purpose I/O pin; AIN4 - ADC/LPCOMP input 4 |+| 8 | P0.04 | bidirectional | General purpose I/O pin; AIN5 - ADC/LPCOMP input 5 |+| 9 | P0.05 | bidirectional | General purpose I/O pin; AIN6 - ADC/LPCOMP input 6 |+| 10 | P0.06 | bidirectional | General purpose I/O pin; AIN7 - ADC/LPCOMP input 7; AREF1 - ADC/LPCOMP reference input 1 |+| 11 | P0.07 | bidirectional | General purpose I/O pin |+| 12 | VDD | power_in | Power supply for the device |+| 13 | VSS | power_in | Ground (0 V) |+| 14 | P0.08 | bidirectional | General purpose I/O pin |+| 15 | P0.09 | bidirectional | General purpose I/O pin |+| 16 | P0.10 | bidirectional | General purpose I/O pin |+| 17 | P0.11 | bidirectional | General purpose I/O pin |+| 18 | P0.12 | bidirectional | General purpose I/O pin |+| 19 | P0.13 | bidirectional | General purpose I/O pin |+| 20 | P0.14 | bidirectional | General purpose I/O pin |+| 21 | P0.15 | bidirectional | General purpose I/O pin |+| 22 | P0.16 | bidirectional | General purpose I/O pin |+| 23 | SWDIO/nRESET | bidirectional | System reset (active low); also hardware debug and flash programming I/O |+| 24 | SWDCLK | input | Hardware debug and flash programming clock input |+| 25 | P0.17 | bidirectional | General purpose I/O pin |+| 26 | P0.18 | bidirectional | General purpose I/O pin |+| 27 | P0.19 | bidirectional | General purpose I/O pin |+| 28 | P0.20 | bidirectional | General purpose I/O pin |+| 29 | DEC2 | passive | Power supply decoupling capacitor connection |+| 30 | VDD_PA | power_out | Power supply output (+1.6 V) for on-chip RF power amplifier |+| 31 | ANT1 | bidirectional | Differential antenna connection for TX and RX |+| 32 | ANT2 | bidirectional | Differential antenna connection for TX and RX |+| 33 | VSS | power_in | Ground (0 V) |+| 34 | VSS | power_in | Ground (0 V) |+| 35 | AVDD | power_in | Analog power supply for radio |+| 36 | AVDD | power_in | Analog power supply for radio |+| 37 | XC1 | input | Connection for 16/32 MHz crystal or external 16 MHz clock reference |+| 38 | XC2 | output | Connection for 16/32 MHz crystal |+| 39 | DEC1 | passive | Power supply decoupling capacitor connection |+| 40 | P0.21 | bidirectional | General purpose I/O pin |+| 41 | P0.22 | bidirectional | General purpose I/O pin |+| 42 | P0.23 | bidirectional | General purpose I/O pin |+| 43 | P0.24 | bidirectional | General purpose I/O pin |+| 44 | P0.25 | bidirectional | General purpose I/O pin |+| 45 | P0.26 | bidirectional | General purpose I/O pin; AIN0 - ADC/LPCOMP input 0; XL2 - connection for 32.768 kHz crystal |+| 46 | P0.27 | bidirectional | General purpose I/O pin; AIN1 - ADC/LPCOMP input 1; XL1 - connection for 32.768 kHz crystal or external clock reference |+| 47 | P0.28 | bidirectional | General purpose I/O pin |+| 48 | P0.29 | bidirectional | General purpose I/O pin |+| 49 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Nordic Semicon |+| Package | UQFN-48-EP(6x6) |+| Category | RF And Wireless |+| Pins | 49 |++## CAD (KiCad official)++- Symbol: `NRF51802-QFAA-R`+- Footprint: `Package_DFN_QFN:QFN-48-1EP_6x6mm_P0.4mm_EP4.4x4.4mm`+- 3D model: UQFN-48-EP(6x6), generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.9 mm nominal QFN height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)+- 3D model files: `nrf51802-qfaa-r-etched.step` / `nrf51802-qfaa-r-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `nrf51802-qfaa-r.step` / `nrf51802-qfaa-r.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Nordic Semicon datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588881923989389312) (85 pp, sha256 `d469441480edb974`, retrieved 2026-10-01, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-4-6` (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/nrf51802-qfaa-r-datasheet.pdf)
page.jsonadded+405@@ -0,0 +1,405 @@+{+ "slug": "nrf51802-qfaa-r",+ "version": "0.1.0",+ "type": "component",+ "description": "Nordic Semicon RF Transceiver ICs, UQFN-48-EP(6x6). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "rf and wireless",+ "nrf51802-qfaa-r",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "nrf51802-qfaa-r.kicad_sym",+ "nrf51802-qfaa-r.kicad_mod",+ "nrf51802-qfaa-r.glb",+ "nrf51802-qfaa-r.step",+ "nrf51802-qfaa-r.lbr",+ "docs/hero.png",+ "docs/nrf51802-qfaa-r-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "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"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}