NRF52820 Bluetooth Low Energy SoC
Nordic nRF52820 BLE SoC pinout: 32 MHz and 32.768 kHz crystal inputs, USB 2.0 D+/D-, 5 V VBUS input, DC/DC output, SWD debug, GPIO and analog inputs.
Aliase:NRF52820-QDAA-R, nRF52820-QDAA-R
QFN40 5x5mm Top View
41 Pins
Pinout Table41
| Pin | Signal / Name | Type | Alternative Functions |
|---|---|---|---|
| 1 | DEC1 | Power | 1.1 V Digital supply decoupling |
| 2 | P0.00 | Digital | General purpose I/OXL1, connection for 32.768 kHz crystal |
| 3 | P0.01 | Digital | General purpose I/OXL2, connection for 32.768 kHz crystal |
| 4 | P0.04 | Digital | General purpose I/OAIN2, analog input |
| 5 | P0.05 | Digital | General purpose I/OAIN3, analog input |
| 6 | P0.06 | Digital | General purpose I/O |
| 7 | P0.07 | Digital | General purpose I/O |
| 8 | VDD | Power | Power supply |
| 9 | VDDH | Power | High voltage power supply |
| 10 | VBUS | Power | 5 V input for USB 3.3 V regulator |
| 11 | DECUSB | Power | USB 3.3 V regulator supply decoupling |
| 12 | D- | Digital | USB D- |
| 13 | D+ | Digital | USB D+ |
| 14 | P0.14 | Digital | General purpose I/O |
| 15 | P0.15 | Digital | General purpose I/O |
| 16 | P0.18 | Digital | General purpose I/OConfigurable as ~RESET pin |
| 17 | P0.20 | Digital | General purpose I/O |
| 18 | VDD | Power | Power supply |
| 19 | SWDIO | Digital | Serial wire debug I/O for debug and programming |
| 20 | SWDCLK | Digital | Serial wire debug clock input for debug and programming |
| 21 | DEC5 | NC | 1.3 V regulator decoupling, build codes Cxx and earlierNot connected for build codes Dxx and later |
| 22 | P0.16 | Digital | General purpose I/O |
| 23 | P0.17 | Digital | General purpose I/O |
| 24 | ANT | Analog | Single-ended radio antenna connection |
| 25 | VSS_PA | Ground | Ground (radio supply) |
| 26 | DEC6 | Power | 1.3 V regulator supply decoupling, must connect to DEC4 (pin 38) |
| 27 | DEC3 | Power | Power supply, decoupling |
| 28 | XC1 | Analog | Connection for 32 MHz crystal |
| 29 | XC2 | Analog | Connection for 32 MHz crystal |
| 30 | VDD | Power | Power supply |
| 31 | P0.08 | Digital | General purpose I/O |
| 32 | P0.29 | Digital | General purpose I/O |
| 33 | P0.30 | Digital | General purpose I/O |
| 34 | P0.28 | Digital | General purpose I/O |
| 35 | P0.03 | Digital | General purpose I/OAIN1, analog input |
| 36 | P0.02 | Digital | General purpose I/OAIN0, analog input |
| 37 | VSS | Ground | Ground |
| 38 | DEC4 | Power | 1.3 V regulator supply decoupling, must connect to DEC6 (pin 26) |
| 39 | DCC | Power | DC/DC converter output |
| 40 | VDD | Power | Power supply |
| EP | VSS | Ground | Ground die pad, must be connected to VSS |