View source for NRF52840

{{DISPLAYTITLE:nRF52840}}
As of 2019, the [https://www.nordicsemi.com/?sc_itemid=%7B2DC10BA5-A76E-40F8-836E-E2FC65803A71%7D nRF52840] is the most advanced SoC of Nordic Semiconductor's nRF52 line. The nRF52840 packs a 32-bit [[ARM]] Cortex-M4F at 64MHz with 1MB of NOR flash and 256KB of RAM accessible via its [https://en.wikipedia.org/wiki/Advanced_Microcontroller_Bus_Architecture#Advanced_High-performance_Bus_(AHB) AHB] ([https://en.wikipedia.org/wiki/Advanced_Microcontroller_Bus_Architecture AMBA]v2). 9 distinct AHB slaves are (non-uniformly) connected to memory, and 2 to flash (one to each of data and instruction cache). 3 SPI and 1 QSPI interfaces run at up to 32MHz. It employs the [https://www.nordicsemi.com/Products/Development-software/S140 S140] SoftDevice for a Bluetooth 5.1/BLE stack.

The device cannot support flash pages greater than 512KB in size using its QSPI peripheral.

==External links==
* Development kit [https://www.nordicsemi.com/Products/Development-hardware/nRF52840-DK/GetStarted start page]
* [https://www.nordicsemi.com/-/media/Software-and-other-downloads/Product-Briefs/nRF52840-DK-product-brief.pdf Product brief]
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