After introducing nRF52833 WiSoC with Bluetooth 5.1 direction-finding support last month, Nordic Semiconductors has now launched another multi-protocol wireless SoC with nRF5340 featuring two Arm Cortex-M33 cores and supporting Bluetooth 5.1, Bluetooth Mesh, NFC, Thread & Zigbee.
One of the Cortex-M33 is an application core incorporating 1 MB Flash and 512 KB RAM, as well as Arm CryptoCell-312, Arm TrustZone technology, and Secure Key Storage for the highest level of security, and the other Cortex-M33 core is used for networking functions. The company also announced nRF5340 PDK to get started with the new WiSoC.
Key features and specifications:
- Application core – Arm Cortex-M33 @ 128/64 MHz with 1 MB Flash + 512 KB RAM, 8 KB 2-way set associative cache; CoreMark: 510/255; CoreMark/mA: 65/76
- Network core – Arm Cortex-M33 @ 64 MHz with 256 KB Flash + 64 KB RAM, 2 KB instruction cache; CoreMark: 238; CoreMark/mA: 101
- Protocol support – Bluetooth 5.1 LE with direction-finding support, Bluetooth mesh, NFC, Thread, Zigbee, 802.15.4, ANT, and 2.4 GHz proprietary
- On-air data rate
- Bluetooth LE: 2 Mbps/1 Mbps/125 kbps
- 802.15.4: 250 kbps
- 2.4 GHz proprietary: 2 Mbps/1 Mbps
- TX power – From +3 to -20 dBm in 1 dB steps
- RX sensitivity – Bluetooth LE: -97.5 dBm at 1 Mbps, -94.3 dBm at 2 Mbps
- Radio current consumption DC/DC at 3V
- 4.7 mA at +3 dBm TX power
- 3.2 mA at 0 dBm TX power
- 2.6 mA in RX at 1 Mbps
- 3.0 mA in RX at 2 Mbps
- Digital interfaces
- 12 Mbps full-speed USB
- 96 MHz encrypted QSPI32 MHz high-speed SPI
- 3xSPI, 3xTWI, 3xUART
- I2S, PDM
- 3xPWM, QDEC
- Analog interfaces – 12-bit, 200 ksps ADC, low-power comparator, general-purpose comparator
- Other peripherals – 6x 32-bit timer/counter, 4x 24-bit real-time counter, DPPI, GPIOTE, Temp sensor, WDT, RNG
- Oscillators – 64 MHz from 32 MHz external crystal or internal32 kHz from crystal, RC or synthesized
- Features – Trusted execution, root-of-trust, secure key storage, 128-bit AES
- Hardware – Arm TrustZone, Arm CryptoCell-312, SPU, KMU, ACL
- Supply voltage – 1.7 to 5.5 V
- System current consumption DC/DC at 3 V
- 1.1 μA in System OFF
- 1.5 μA in System ON
- 1.6 μA in System ON with network core RTC running
- 1.8 μA in System ON with 64 KB network core RAM retained and network core RTC running
- Package – 7×7 mm aQFN94 with 48 GPIOs
- Temperature range – -40°C to 105°C
nRF5340 software development is done through the nRF Connect SDK which comes with Zephyr RTOS, a Bluetooth LE protocol stack, application examples, and hardware drivers. The nRF Connect SDK also supports nRF9160 NB-IoT/eMTC System-in-Package (SiP), and as such can be used for the development of cellular IoT, and low power, short-range application development.
Nordic Semi has also launched the nRF5340-PDK (Preview Development Kit) giving access to all of the nRF5340’s features and GPIOs available, and including an on-board SEGGER J-Link debugger for programming and debugging.
- WiSoC – Nordic nRF5340 described above
- Antennas – 2.4 GHz and NFC antennas
- Expansion – Arduino Rev3 headers
- SEGGER J-Link OB programmer/debugger
- SWF RF connector for direct RF measurements
- Pins for measuring power consumption
- Misc – 4x User-programmable LEDs and 4x buttons
- Power Supply – 1.7-5.0 V supply from USB, external, Li-Po battery or CR2032 coin cell battery
The board and SoC target professional lighting, industrial applications, advanced wearables, medical devices, smart home appliances, as well as asset tracking and RTLS (Real-Time Location System).
The board ships with an NFC antenna and a CR2032 battery, as well as a quick start guide. Note the PDK will be replaced by the nRF5340 DK when the nRF5340 SoC mass-production is about to start. More details, including the Altium design files, can be found on the product page.
nRF5340 SoC engineering samples are expected soon, and the nRF5340 -DK is available now through distributors such as Digikey for $49.