Pin Function Grouping for nRF52840

flux

5:10

adrian95

adrian95

Looking at the datasheet of this component, can you group together pins by their functions? for example for Power, 3v3, gnd_1 gnd_2 etc Also can you place them into their respective sections based on their functions NOTE: If you group them, can you not add the same pin if you already added them in a group? You should know which pin function is common for its function

flux

0:27

Read 3 knowledge entries.

Thought for 4 sec

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Thought for a moment

I’ll update the nRF52840 symbol organization by assigning each pin to one functional section and one pin group only, using the datasheet pin functions as the source of truth. I’ll first inspect the current pins/properties, then apply grouped sections and verify there are no duplicate group assignments.

flux

15:12

Thought for 3 sec

1/5 Inspect current nRF52840 symbol pins and existing pin grouping properties

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Read schematic.

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Read schematic.

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Read NRF52840-QFAA-F-R datasheet for QFN48 pin assignments pin number pin nam.

Read NRF52840-QFAA-F-R datasheet for aQFN73 QFN48 pin assignments table.

Read NRF52840-QFAA-F-R datasheet for pin description DEC VDD VSS VSS_PA DCC A.

Thought for 3 sec

Found 10 results for nRF52840 QFAA QFN48 pin assignments DEC1 DCC VSS_PA ANT pin 31.

Found 10 results for nRF52840-QFAA pinout QFN48 pin description.

Thought for 3 sec

Read pin.html.

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2/5 Extract authoritative nRF52840 QFAA pin functions from datasheet

Thought for 7 sec

Analyzing in depth.

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Analyzing in depth.

Found 10 results for nRF52840 QFAA pin DEC1 DEC3 DEC4 DEC6 DCC pin description.

Thought for 2 sec

Analyzing in depth.

Read pin.html.

Thought for 4 sec

Analyzing in depth.

Found 1 results for site:docs.nordicsemi.com nRF52840 pin assignments QFAA 48 DEC1 "DCC".

Found 10 results for "DEC1" "1.3 V regulator supply decoupling" "nRF52840".

Found 10 results for "nRF52840-QFAA" "DEC6" "DEC4" "DCC".

Thought for 3 sec

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Analyzing in depth.

Read 2577974.pdf.

Thought for 2 sec

Analyzing in depth.

Read "nRF52840 QFAA QFN48 pin assignments table pins 1 to 49 DEC1 VDD P0.00 XL1 ANT VSS_PA DEC6 DEC3 XC1 XC2 DCC descriptions" in 2577974.pdf.

Read 2577974.pdf.

Thought for 4 sec

Thought for a moment

Analyzing in depth.

Read "4.2 QFAA pin assignments QFN48 nRF52840 Table QFAA pin assignments pin number DEC1 P0.00 XL1" in 2577974.pdf.

Read 2577974.pdf.

Thought for 3 sec

Analyzing in depth.

Read "QFN48 pin assignments nRF52840 QFAA Table pin number DEC1 P0.00 XL1 pin type description recommended usage pins 1 49" in nRF52840_PS_v1_7-3049332.pdf.

Read nRF52840_PS_v1_7-3049332.pdf.

Thought for 4 sec

Analyzing in depth.

Read "QFN48 pin assignments nRF52840 pins 1 2 3 4 5 6 7 8 9 10 11 12 names types descriptions recommended usage" in nRF52840_PS_v1_7-3049332.pdf.

Read "QFN48 pin assignments nRF52840 pins 13 14 15 16 17 18 19 20 21 22 23 24 names types descriptions recommended usage" in nRF52840_PS_v1_7-3049332.pdf.

Read "QFN48 pin assignments nRF52840 pins 25 26 27 28 29 30 31 32 33 34 35 36 names types descriptions recommended usage" in nRF52840_PS_v1_7-3049332.pdf.

Read "QFN48 pin assignments nRF52840 pins 37 38 39 40 41 42 43 44 45 46 47 48 49 names types descriptions recommended usage" in nRF52840_PS_v1_7-3049332.pdf.

Read nRF52840_PS_v1_7-3049332.pdf.

Read nRF52840_PS_v1_7-3049332.pdf.

Read nRF52840_PS_v1_7-3049332.pdf.

Read nRF52840_PS_v1_7-3049332.pdf.

Thought for 36 sec

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Thought for 32 sec

Thought for a moment

Thought for 5 sec

3/5 Assign each pin to one functional group/section and update pin descriptions/types

Thought for 33 sec

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4/5 Verify updated symbol grouping has no duplicated pins or missing pins

Thought for a moment

Read schematic.

Thought for 4 sec

5/5 Create/update a project file summarizing the grouping rationale

Thought for 13 sec

Thought for 38 sec

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5/5 tasks completed.

Thought for a moment

Done — I grouped all 49 nRF52840-QFAA terminals into mutually exclusive functional sections and updated Section, Pin Group, Pin Type, and Pin Description properties. I also created the detailed reference file here: nRF52840-QFAA-F-R Pin Grouping.
No pin was assigned to more than one functional section; multifunction pins keep their alternate functions in the descriptions.
Run ERC/DRC
Review pin groups
Check decoupling
Clean descriptions

Finished working

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SWDCLK
Pin Number
27
P0.00XL1
Pin Number
2
XC2
Pin Number
36
XC1
Pin Number
35
DEC6
Pin Number
33
VDD_1
Pin Number
12
SWDIO
Pin Number
26
P0.09NFC1
Pin Number
29
P0.08
Pin Number
7
P0.11TRACEDATA2
Pin Number
10
ANT
Pin Number
31
P0.04_AIN2
Pin Number
4
P0.05AIN3
Pin Number
5
VSS_PA
Pin Number
32
P0.01_XL2
Pin Number
3
P1.08
Pin Number
8
P0.07TRACECLK
Pin Number
6
NC
Pin Number
28
DEC3
Pin Number
34
VDD_3
Pin Number
25
DEC1
Pin Number
1
P1.09TRACEDATA3
Pin Number
9
P0.12TRACEDATA1
Pin Number
11
P0.10NFC2
Pin Number
30
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NRF52840-QFAA-F-R

NRF52840-QFAA-F-R thumbnail
IC RF TxRx + MCU 802.15.4, Bluetooth Bluetooth v5.0, Thread, Zigbee® 2.4GHz 48-VFQFN Exposed Pad
The NRF52840-QFAA-F-R belongs to Nordic’s nRF52 series and supports multiple wireless standards including Bluetooth 5, Bluetooth Low Energy (BLE), Thread, Zigbee, ANT, and proprietary 2.4 GHz protocols. It features a 64 MHz ARM Cortex-M4F CPU with floating-point unit (FPU), making it suitable for both wireless communication and real-time embedded processing.
The device integrates large memory resources, rich peripherals, USB support, NFC capability, and advanced security features, reducing the need for external components in wireless embedded designs.
Key Features 32-bit ARM Cortex-M4F processor running at 64 MHz 1 MB Flash memory and 256 KB RAM Supports Bluetooth 5 / BLE, Thread, Zigbee, ANT, and proprietary 2.4 GHz protocols IEEE 802.15.4 compliant radio Up to +8 dBm TX output power High receiver sensitivity down to −103 dBm Data rates up to 2 Mbps Ultra-low power consumption for battery-powered applications USB 2.0 Full-Speed controller NFC-A tag support Multiple communication interfaces: SPI UART I2C (TWI) I2S PWM PDM ADC Up to 48 GPIOs Integrated ARM CryptoCell-310 security engine Operating voltage range: 1.7 V to 5.5 V Operating temperature: −40°C to +85°C Compact 48-QFN (6×6 mm) package Typical Applications BLE devices Smart home products Wearables Wireless sensors Industrial IoT HID devices (keyboard/mouse) Asset tracking Mesh networking devices USB dongles and gateways PCB Design Notes
Community PCB reviews commonly recommend:
Proper RF grounding and 50-ohm antenna routing Using ESD/TVS protection on USB lines Keeping RF matching components close to the antenna Using solid ground planes for 2.4 GHz performance
#CommonPartsLibrary #IntegratedCircuit #RF

Properties

NRF52840-QFAA-F-R

Nordic Semiconductor

Integrated Circuits

mm.digikey.com/Volume0/opasdata/d220001/medias/docus/6470/NRF52840-QFAA-F-R.pdf

IC

creativecommons.org/licenses/by/4.0/

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