nRF52840

Bluetooth 5.3 / Thread / Zigbee SoC, ARM Cortex-M4F, QFN-73

The nRF52840 is a multiprotocol SoC from Nordic Semiconductor supporting Bluetooth 5.3, Thread, Zigbee, and 802.15.4. ARM Cortex-M4F at 64MHz with 1MB Flash and 256KB SRAM.