nRFNRF52840-QIAA-R7
Overview
The NRF52840-QIAA-R7 is a multi-protocol 2.4 GHz System-on-Chip from Nordic Semiconductor designed for Bluetooth Low Energy and ANT applications. It combines an integrated radio and an ARM Cortex-M4 class microcontroller with common peripheral interfaces, including USB support. The device is targeted at battery-powered and USB-connected IoT endpoints and peripherals.
Why Choose This Part
The NRF52840 offers a flexible multi-protocol radio combined with a capable Cortex-M4 microcontroller, so a single chip handles both radio and application logic. It includes on-chip USB and common peripheral interfaces, reducing BOM and simplifying designs that need host connectivity. Nordic provides mature SDKs and strong community support, accelerating development and debugging.
Applications
Getting Started
Nordic provides the nRF52840 DK development kit and a small USB dongle based on the same SoC; the DK includes an on-board SEGGER J-Link debugger. Use Nordic's nRF Connect SDK or the legacy nRF5 SDK with common toolchains (Segger Embedded Studio or GCC/arm-none-eabi). Install nRF Connect for Desktop utilities for flashing and monitoring, and start from Nordic example projects for BLE, USB, and low-power modes.
Dev Boards
Development boards and breakout modules featuring the NRF52840-QIAA-R7 or compatible chips — ready to use for prototyping.
NRF52840 Family
| Part Number | Difference | Stock |
|---|---|---|
| NRF52840-DONGLE (Nordic Semiconductor ASA) | DONGLE | 154 |
| nRF52840-DK | DK | 587 |
| nRF52840-CKAA-R7 | CKAA-R7 | 5,857 |
| nRF52840-CKAA-R | CKAA-R | 5,979 |
| nRF52840 Dongle | Dongle | — |
| nRF52840-QIAA-RK | K | — |
