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ChipNordic Semiconductor

nRF52811 QFN48 Bluetooth LE SoC pinout

Nordic nRF52811 Bluetooth Low Energy SoC pin assignment for the QFN48 6x6mm package, including GPIO, 32 MHz and 32.768 kHz crystal pins, SWD, RF antenna and regulator pins.

Aliase:NRF52811-QFAA-R, nRF52811-QFAA-R
Datasheet (PDF)

QFN48 6x6mm Top View

49 Pins
nRF52811Nordic SemiconductorQFN-48 + EPEP: VSS (EP)1DEC12P0.00/XL13P0.01/XL24P0.02/AIN05P0.03/AIN16P0.04/AIN27P0.05/AIN38P0.069P0.0710P0.0811P0.0912P0.1013VDD14P0.1115P0.1216P0.1317P0.1418P0.1519P0.1620P0.1721P0.1822P0.1923P0.2024P0.21/~nRESET25SWDCLK26SWDIO27P0.2228P0.2329P0.2430ANT31VSS32DEC233DEC334XC135XC236VDD37P0.2538P0.2639P0.2740P0.28/AIN441P0.29/AIN542P0.30/AIN643P0.31/AIN744NC45VSS46DEC447DCC48VDDpinoutdb.org
Pinout Table49
PinSignal / NameTypeAlternative Functions
1DEC1Power
0.9 V regulator digital supply decoupling
2P0.00/XL1Digital
General purpose I/OConnection for 32.768 kHz crystal (LFXO)Analog input
3P0.01/XL2Digital
General purpose I/OConnection for 32.768 kHz crystal (LFXO)Analog input
4P0.02/AIN0Digital
General purpose I/OSAADC input AIN0COMP input
5P0.03/AIN1Digital
General purpose I/OSAADC input AIN1COMP input
6P0.04/AIN2Digital
General purpose I/OSAADC input AIN2COMP input
7P0.05/AIN3Digital
General purpose I/OSAADC input AIN3COMP input
8P0.06Digital
General purpose I/O
9P0.07Digital
General purpose I/O
10P0.08Digital
General purpose I/O
11P0.09Digital
General purpose I/O
12P0.10Digital
General purpose I/O
13VDDPower
Power supply
14P0.11Digital
General purpose I/O
15P0.12Digital
General purpose I/O
16P0.13Digital
General purpose I/O
17P0.14Digital
General purpose I/O
18P0.15Digital
General purpose I/O
19P0.16Digital
General purpose I/O
20P0.17Digital
General purpose I/O
21P0.18Digital
General purpose I/O
22P0.19Digital
General purpose I/O
23P0.20Digital
General purpose I/O
24P0.21/~nRESETDigital
General purpose I/OConfigurable as pin reset
25SWDCLKDigital
Serial wire debug clock input for debug and programming
26SWDIODigital
Serial wire debug I/O for debug and programming
27P0.22Digital
General purpose I/O
28P0.23Digital
General purpose I/O
29P0.24Digital
General purpose I/O
30ANTAnalog
Single-ended radio antenna connection
31VSSGround
Ground (radio supply)
32DEC2Power
1.3 V regulator supply decoupling (radio supply)
33DEC3Power
Power supply decoupling
34XC1Analog
Connection for 32 MHz crystal
35XC2Analog
Connection for 32 MHz crystal
36VDDPower
Power supply
37P0.25Digital
General purpose I/O
38P0.26Digital
General purpose I/O
39P0.27Digital
General purpose I/O
40P0.28/AIN4Digital
General purpose I/OSAADC input AIN4COMP input
41P0.29/AIN5Digital
General purpose I/OSAADC input AIN5COMP input
42P0.30/AIN6Digital
General purpose I/OSAADC input AIN6COMP input
43P0.31/AIN7Digital
General purpose I/O pinSAADC input AIN7COMP input
44NCNC
Leave unconnected
45VSSGround
Ground
46DEC4Power
1.3 V regulator supply decoupling, input from DC/DC regulatorOutput from 1.3 V LDO
47DCCPower
DC/DC regulator output
48VDDPower
Power supply
EPVSSGround
Die pad ground, must be connected to VSS

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