The nRF52840 SoC is the most advanced member of the nRF52 Series. It meets the challenges of sophisticated applications that need protocol concurrency and a rich and varied set of peripherals and features. It offers generous memory availability for both Flash and RAM, which are prerequisites for such demanding applications.

The nRF52840 is fully multiprotocol capable with full protocol concurrency. It has protocol support for Bluetooth LE, Bluetooth mesh, Thread, Zigbee, 802.15.4, ANT and 2.4 GHz proprietary stacks.

The nRF52840 is built around the 32-bit ARM® Cortex™-M4 CPU with floating point unit running at 64 MHz. It has NFC-A Tag for use in simplified pairing and payment solutions. The ARM TrustZone® CryptoCell cryptographic unit is included on-chip and brings an extensive range of cryptographic options that execute highly efficiently independent of the CPU. It has numerous digital peripherals and interfaces such as high speed SPI and QSPI for interfacing to external flash and displays, PDM and I²S for digital microphones and audio, and a full speed USB device for data transfer and power supply for battery recharging.

Exceptionally low energy consumption is achieved using a sophisticated on-chip adaptive power management system.

SoC	nRF5340	nRF52840	nRF52833	nRF52832	nRF52820	nRF52811	nRF52810	nRF52805
Bluetooth	5.4	5.4	5.4	5.4	5.4	5.4	5.4	5.4
Thread	Yes	Yes	Yes		Yes	Yes
Matter	Yes	Yes
Zigbee	Yes	Yes	Yes		Yes
Bluetooth Mesh	Yes	Yes	Yes	Yes	Yes
Flash	1 MB + 256 KB	1 MB	512 KB	512/256 KB	256 KB	192 KB	192 KB	192 KB
RAM	512 KB + 64 KB	256 KB	128 KB	64/32 KB	32 KB	24 KB	24 KB	24 KB
CPU	128 MHz Arm Cortex-M33 + 64 MHz Arm Cortex-M33	64 MHz Arm Cortex-M4 with FPU	64 MHz Arm Cortex-M4 with FPU	64 MHz Arm Cortex-M4 with FPU	64 MHz Arm Cortex-M4	64 MHz Arm Cortex-M4	64 MHz Arm Cortex-M4	64 MHz Arm Cortex-M4
High-Speed SPI	Yes	Yes	Yes
QSPI	Yes	Yes
USB	Yes	Yes	Yes		Yes
PWM, PDM, I2S	Yes	Yes	Yes	Yes		PWM, PDM	PWM, PDM
ADC, Comp	Yes	Yes	Yes	Yes	COMP	ADC, COMP	ADC, COMP	ADC
Temp Range	-40 to 105 °C	-40 to 85 °C	-40 to 105 °C	-40 to 85 °C	-40 to 105 °C	-40 to 85 °C	-40 to 85 °C	-40 to 85 °C
Supply voltage range	1.7 to 5.5 V	1.7 to 5.5 V	1.7 to 5.5 V	1.7 to 3.6 V	1.7 to 5.5 V	1.7 to 3.6 V	1.7 to 3.6 V	1.7 to 3.6 V
Packages	aQFN94 WLCSP95	aQFN73 WLCSP94	aQFN73 QFN40 WLCSP76	QFN48 WLCSP50	QFN40	QFN48 QFN32 WLCSP33	QFN48 QFN32 WLCSP33	WLCSP28
GPIOs	48	48	18-42	32	18	15-32	15-32	10

IOT

Nordic Semiconductor nRF52840