NRF5340 VS NRF52840 Bluetooth LE NFC[FAQ]

The NRF5340 is an all-in-one SoC that includes a superset of the nRF52  ® Series' most important capabilities. Bluetooth  ® 5.3, high-speed SPI, QSPI, USB, up to 105°C working temperature, and more are paired with increased performance, memory, and integration, all while consuming less power.

The application processor is performance-optimized and may run at 128 or 64 MHz thanks to voltage-frequency scaling. It has 1 MB  of flash memory.  512 KB  of RAM, a floating-point unit (FPU), an 8 KB  2-way associative cache, and DSP  instructions. The network processor runs at 64 MHz and is designed to be energy efficient (101 CoreMark/mA). It has a flash memory of 256 KB  and a RAM  of 64 KB.

With complete protocol concurrency, the NRF52840 is fully multiprotocol capable. Bluetooth LE, Bluetooth mesh, Thread, Zigbee, 802.15.4, ANT, and 2.4 GHz proprietary stacks are all supported.

The NRF52840 is based on a 32-bit ARM  ® CortexTM  -M4 CPU  with a 64-MHz floating-point unit. It has an NFC  -A tag for use in pairing and payment options that are more convenient. On-chip, the ARM  TrustZone® CryptoCell cryptographic unit provides a wide range of cryptographic choices that run very quickly and independently of the CPU.

NRF5340 Features

High-performance application processor

• 128/64 MHz Arm Cortex-M33  with and DSP  instructions

• 1 MB Flash + 512 KB  RAM 

• 8 KB  2-way set-associative cache

Fully-programmable network processor

• 64 MHz Arm Cortex-M33  with2 KB  instruction cache

• 256 KB  Flash + 64 KB  RAM 

Next-level security

• Trusted execution with Arm TrustZone 

• Hardware-accelerated cryptographywith Arm CryptoCell-312 

• Secure Key Storage

• Secure bootloader with root-of-trust and DFU 

Bluetooth Low Energy

• Bluetooth 5.3

• LE Audio

• Direction Finding

• 2 Mbps, Advertising Extensions andLong Range

Bluetooth mesh 

Thread, Zigbee and 802.15.4

NFC 

Full range of digital interfaces with EasyDMA

• Full-speed USB

• 96 MHz encrypted QSPI 

• 32 MHz high-speed SPI 

105 °C extended operating temperature

1.7-5.5 V supply voltage range 

NRF5340 Features

64 MHz Arm® Cortex-M4 with FPU 

1 MB Flash + 256 KB  RAM 

Bluetooth 5.3 multiprotocol radio

• 2 Mbps

• CSA #2

• Advertising Extensions

• Long Range

• +8 dBm TX power

• -95 dBm sensitivity

• Integrated balun with 50 Ω single-ended output

IEEE 802.15.4 radio support

• Thread

• Zigbee

1.7-5.5 V supply voltage range 

Full-speed 12 Mbps USB

NFC-A tag

Arm CryptoCell CC310  security subsystem

QSPI/SPI/TWI/I²S/PDM/QDEC

High speed 32 MHz SPI 

Quad SPI  interface 32 MHz

EasyDMA for all digital interfaces

12-bit 200 ksps ADC

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

On-chip DC-DC buck converter 

Regulated supply for external components up to 25 mA

NRF5340 CAD Model

NRF5340 Symbol

NRF5340 Footprint

NRF52840 CAD Model

NRF52840 Symbol

NRF52840 Footprint

NRF5340 Applications

• LE Audio

• Professional lighting

• Industrial

• Advanced wearables

• Medical

• Smart home

• Asset tracking and RTLS

NRF52840 Application

IoT

• Smart Home products

• Matter connected home products

• Industrial mesh networks

• Smart city infrastructure

Advanced wearables

• Connected watches

• Advanced personal fitness devices

• Wearables with wireless payment

• Connected Health

• Virtual/Augmented Reality applications

Interactive entertainment devices

• Advanced remote controls

• Gaming controller

When compared to the nRF52840 SoC, the 0 dBm TX  current of NRF5340   is 3.4 mA, while the RX  current is only 2.7 mA, resulting in a reduction of 29% and 41%, respectively. The RX  sensitivity of the nRF5340  is -98 dBm, which is 3 dB better than the nRF52840. This means that the nRF5340  has 3 dB better sensitivity while utilizing 41% less current.

NRF5340 Datasheet

NRF52840 Datasheet

Nordic Semiconductor is a fabless semiconductor business that focuses on short-range wireless and low-power cellular IoT applications. Nordic developed Bluetooth Low Energy, a widely used wireless technology, and pioneered ultra-low-power wireless. The company's award-winning Bluetooth LE solutions have propelled it to the top of the industry, and ANT+, Thread, and Zigbee products round out the offering. Nordic's reputation is built on providing cutting-edge wireless technology and development tools that protect designers from the complexities of RF. This philosophy is carried over to Nordic's newest technology, cellular IoT. This NB-IoT and LTE-M solution, which was launched in 2018 after four years of research, uses cellular infrastructure to extend the IoT.