nRF52840 Brief Datasheet by Nordic Semiconductor ASA

NORDIC SEM\(UMDU(TDR

nRF52840 Product Brief Version 1.0

KEY FEATURES

• Bluetooth 5 ready multi-protocol radio

• Bluetooth 5 datarate support: 2Mbs, 1Mbs, 500kbs, 125kbs

• 32-bit ARM Cortex-M4F @ 64MHz

• High speed 2Mbs data-rate

• Up to 111 dB link budget for Bluetooth long range mode

• Full-speed 12Mbs USB controller

• NFC-A on-chip

• Software stacks available as downloads

• Application development independent of protocol stack

• Programmable output power from +8dBm to -20dBm

• -96dBm Sensitivity for Bluetooth low energy

• On-air compatible with nRF51, nRF24L and nRF24AP Series

• ARM Cryptocell CC310 cryptographic accelerator

• RSSI

• Wide supply voltage range +5.5v to 1.7v

• Full selection of interfaces SPI/UART/PWM

• Programmable Peripheral Interface - PPI

• High speed SPI interface 32MHz

• Quad SPI interface 32MHz

• EasyDMA for all digital interfaces

• RAM mapped FIFO using EasyDMA

• 12bit/200K SPS ADC

• 128 bit AES/ECB/CCM/AAR co-processor

• Single-ended antenna output (on-chip balun)

• On-chip DC-DC buck converter

• Quadrature demodulator

• Regulated supply for external components up to 25mA

APPLICATIONS

• Advanced wearables

- Connected watches

- Advanced personal fitness devices

- Wearables with wireless payment

- Connected Health

- Virtual/Augmented Reality applications

• IoT

- Smart Home sensors and controllers

- Industrial IoT sensors and controllers

• Interactive entertainment devices

- Advanced remote controls

- Gaming controller

Ready for Bluetooth 5 and high grade IoT security

The nRF52840 is an advanced, highly flexible single chip solution

for today’s increasingly demanding ULP wireless applications for

connected devices on our person, connected living environments

and the IoT at large. It is designed ready for the major feature

advancements of Bluetooth® 5 and takes advantage of Bluetooth

5’s increased performance capabilities which include long range

and high throughput modes. Inherent industry-grade security is

essential in today’s applications. The nRF52840 adds best-in-class

security for CortexTM-M Series with on-chip ARM® CryptoCell

cryptographic accelerator.

Advanced performance, lowest power consumption

The nRF52840 employs the same hardware and software

architecture as existing nRF52 Series SoCs. At its core is an

ARM Cortex-M4F processor allowing quicker and more efficient

computation of complex functions for DSP and those requiring

floating point math. There is extensive memory availability in

both flash and RAM, 1MB/256kB respectively. The combination

of Cortex-M4F and memory availability offers unparalleled

capabilities for true single chip applications.

A full-speed (12Mbs) USB 2.0 controller is included on-chip. An

extensive range of peripherals are available with a number of high

performance digital interfaces such as high speed SPI (32MHz)

and quad SPI (32MHz) to allow direct interfacing to displays

and external memory sources. The nRF52840 can operate from

+5.5v down to 1.7v supply voltages allowing direct supply from

rechargeable batteries and USB supplies.

Bluetooth 5 – Bluetooth low energy further and faster

The nRF52840 is ready to take advantage of the considerable

performance improvements for Bluetooth low energy with the

arrival of the Bluetooth 5 specification. Of greatest importance

is the support for longer range (up to x4 compared to Bluetooth

4.x) and doubling of on-air data-rate, up to 2Mbs from 1Mbs in

Bluetooth 4.x

Wide protocol support with addition of 802.15.4

The 802.15.4 PHY and MAC layers are supported natively on the

nRF52840. This allows nRF52840 to be used in a wide range of

home and industrial sensor network applications as it supports

nRF52840

Advanced multi-protocol System-on-Chip

Supporting: Bluetooth low energy (Bluetooth 5), ANT/ANT+,

802.15.4 and 2.4GHz proprietary

Bluetooth 5

data rates

2Mbs (New) High throughput

1Mbs Existing BLE data rate

500kbs (New) Longer range

125kbs (New) Longest range

nRF52840 Product Brief Version 1.0

SPECIFICATIONS

Frequency band 2.4GHz

On-air data rate 2Mbs/1Mbs/500kbs/125kbs - Bluetooth low

energy

250kbs – 802.15.4

2Mbs/1Mbs – 2.4GHz proprietary

Output power Programmable -20dBm to +8dBm

Sensitivity

Bluetooth 5: -103dBm at 125kbs, -99dBm at

500kbs, -96dBm at 1Mbs, -92dBm at 2Mbs

802.15.4: -100dBm at 250kbs

ANT: -92.5dBm at 1Mbs

2.4GHz: -92.5dBm at 1Mbs, -89dBm at 2Mbs

Radio current

consumption DC-DC

at 3v

13.6mA - TX at +8dBm output power

8.7mA – TX at +4dBm output power

5.3mA – TX at 0dBm output power

6.4mA - RX at 1Mbs

Microcontroller ARM Cortex-M4F

Program memory

1MB Flash with cache

RAM

256kB

Oscillators 32MHz crystal oscillator, 64MHz RC oscillator,

32kHz crystal oscillator, 32kHz RC oscillator

System current

consumption

400nA – No RAM retention, 0.7µA – All

peripherals in IDLE mode, 1µA – All peripherals

in IDLE mode with 32kHz XO and RTC running,

30nA per 4kB RAM retention

Hardware security 128-bit AES ECB/CCM/AAR co-processor

Cryptography ARM CryptoCell 310

GPIO 48 configurable

Digital I/O QSPI x 1, SPI master x 4, SPI slave x 4, 2-wire

master x 2, 2-wire slave, UARTE x 2, Quadrature

decoder, PDM, I²S

Peripherals 12-bit/200ksps ADC, RNG, LP comparator, WDT,

PWM x 3

PPI 20

USB USB 2.0 (12Mbs)

Power supply LDO, DC-DC

Timers/counters 32-bit timers x 5, RTC x 3

Package options AQFN73, 7x7mm

NFC NFC-A

two of the most popular wireless sensor standards in use today,

Bluetooth low energy and 802.15.4 derivatives. This adds to the

already existing radio support for Bluetooth low energy, ANT/ANT+

and 2.4GHz for proprietary.

High link budget for in-home applications

The nRF52840 is the ideal solution for smart connected home

applications. It supports both Bluetooth 5’s long range feature

and also 802.15.4 which is already a popular technology for home

networking protocols. With a maximum output power of 8dBm a

total link budget of >110dBm is achievable for achieving robust

communications through objects within the home.

ARM Cryptocell 310

The nRF52840 features an on-chip ARM CryptoCell 310

cryptographic hardware accelerator. Cryptocell offers a wide range

of ciphers and security features for building solid security into

applications from the ground up. Use of Cryptocell also makes

associated security operations run faster and uses less processing

time and power than equivalent operation carried out in software

by the CPU.

OTA DFU

The nRF52840 is supported by Over-the-Air Device Firmware

Upgrade (OTA-DFU). This allows for in the field updates of

application and/or protocol stack.

Maximum re-use and easy migration

The nRF52840 has binary compatible peripherals with other

devices in the nRF52 and nRF51 Series for most functions. The

common hardware and software architectures mean use and

porting of existing code is straightforward allowing developers

to re-use firmware libraries they have developed previously with

ease.

Nordic SoftDevices

The Nordic protocol stacks are known as SoftDevices and

compliment the nRF52 Series SoCs. SoftDevices are pre-

compiled link-free binaries and can be downloaded from Nordic

Semiconductor. SoftDevices reside in separate memory space to

the application and are interfaced by their API making the building

of applications simpler and more predictable.

The S140 SoftDevice supports concurrent Bluetooth low energy

operation for all 4 roles (Central/Peripheral/Broadcaster/

Observer). The S140 is a Bluetooth 5 qualified stack and as such

supports the latest long range and high throughput features

introduced in Bluetooth 5.

Headquarters:

Trondheim, Norway

Tel: +47 72 89 89 00

For more information

Visit www.nordicsemi.com for the complete prod-

uct specification about this and any other wireless

ULP products.

About Nordic Semiconductor

Nordic Semiconductor is a fabless semiconductor

company specializing in ULP short-range wireless

communication. Nordic is a public company listed

on the Norwegian stock exchange.

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