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Nitrokey-3a mini nrf52-hardware

Nitrokey·nitrokey-3a-mini-nrf52-hardware

Nitrokey-3a mini nrf52-hardware PCB layout, top view — open source Nordic nRF board by Nitrokey

About the Nitrokey-3a mini nrf52-hardware PCB

Nitrokey-3a mini nrf52-hardware is an open source Nordic nRF PCB design by Nitrokey, published on GitHub under the CERN-OHL-S-2.0 license. It is a 4-layer board measuring 16.4 × 11.1 mm, with 24 components from 17 distinct parts.

Its main chip is the NRF52840-QIAA-R, from the Nordic nRF family. Other key parts include the GD25Q16EEIGR and SE050C1HQ1/Z01SCZ. By type, the board carries 12 capacitors, 5 resistors, 3 ICs, 2 diodes, 1 crystal and 1 connector.

From the project

Nitrokey 3 USB-A Mini NRF52 hardware

The hardware files of Nitrokey 3A Mini and Nitrokey Passkey. The firmware is here.

Main components on the Nitrokey-3a mini nrf52-hardware

NRF52840-QIAA-RGD25Q16EEIGRSE050C1HQ1/Z01SCZ

Nitrokey-3a mini nrf52-hardware bill of materials (BOM)

24 components, 17 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
NRF52840-QIAA-R
nRF52840
Nordic Semiconductor ASA
U1
1
GD25Q16EEIGR
quad_serial_flash
GigaDevice Semiconductor (HK) Limited
U3
1
SE050C1HQ1/Z01SCZ
SE050
NXP
U5
1
TAXM32M4ZFBCCT2T
TAE
Y1
1
USB_A
J1
1
150066M153000
LED_RGBA
Würth
D1
1
TPD4S012DRYR
TPD4S012DRYR-dk_TVS-Diodes
Texas Instruments
D2
2
12PF
12p
C1, C2
1
820PF
820p
C3
1
100PF
100p
C4
4
100NF
100n
C5, C10, C11, C12
2
4.7U
4.7u
C6, C14
2
1u
C7, C9
1
49R9
R1
1
180R
R2
1
1M
R3
2
4.7K
4.7k
R8, R9

Nitrokey-3a mini nrf52-hardware design files

The KiCad project lives in the Nitrokey/nitrokey-3a-mini-nrf52-hardware repository on GitHub; these links point at the commit this page was built from.

Nitrokey-3a mini nrf52-hardware: common questions

What microcontroller does the Nitrokey-3a mini nrf52-hardware use?

The Nitrokey-3a mini nrf52-hardware is built around the NRF52840-QIAA-R, from the Nordic nRF family.

How big is the Nitrokey-3a mini nrf52-hardware PCB?

The Nitrokey-3a mini nrf52-hardware measures 16.4 × 11.1 mm, has 4 copper layers and is 0.6 mm thick.

How many components are on the Nitrokey-3a mini nrf52-hardware?

24 components, from 17 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Nitrokey-3a mini nrf52-hardware design files?

From the Nitrokey/nitrokey-3a-mini-nrf52-hardware repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Nitrokey-3a mini nrf52-hardware design in my own project?

Yes, under the terms of its CERN-OHL-S-2.0 license, which Nitrokey chose for the repository.

Can I test firmware for the Nitrokey-3a mini nrf52-hardware without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug Nordic nRF firmware against it before you order a PCB.

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