Nordic Semiconductor announced the nRF52833 advanced multiprotocol System-on-Chip (SoC), the fifth addition to its popular and proven nRF52 Series. The nRF52833 is an ultra low power Bluetooth® Low Energy (Bluetooth LE), Thread, Zigbee, and 2.4-GHz proprietary wireless connectivity solution that includes a Bluetooth 5.1 Direction Finding-capable radio and is qualified for operation across a -40 to 105°C temperature range. The nRF52833 features a powerful 64-MHz 32-bit Arm® Cortex®-M4 processor with FPU and includes a generous amount of Flash (512 KB) and RAM (128 KB) memory making it an ideal option for a wide range of commercial and industrial wireless applications including professional lighting, asset tracking, smart home products, advanced wearables, and gaming solutions.
The SoC’s large amount of Flash and RAM memory supports a dynamic multiprotocol capability which is an advantage for applications such as professional lighting where concurrent Bluetooth LE and Bluetooth mesh/Thread/Zigbee support enables provisioning, commissioning, and interaction with a lighting mesh network from a smartphone using Bluetooth LE. The SoC’s 105°C capability brings a further advantage for professional lighting applications which typically feature elevated ambient temperatures.
The nRF52833’s radio is capable of all Bluetooth 5.1 Direction Finding features and the large memory can support both receiver and transmitter roles for Angle-of-Arrival (AoA) and Angle-of-Departure (AoD) applications. Direction Finding enables positioning applications that not only rely on received signal strength indication (RSSI) but also the signal direction. Applications include real time location systems (RTLS) and indoor positioning systems (IPS).
The nRF52833 includes advanced features—including Full-Speed USB, High-Speed SPI, and +8 dBm output power—previously only available on Nordic’s flagship nRF52840 multiprotocol SoC. The increased output power together with Bluetooth 5 technology’s Long Range feature ensures the nRF52833 is an ideal choice for smart-home applications demanding robust connections and complete building coverage. The SoC includes up to 42 GPIOs and a range of analog and digital interfaces such as an NFC-A Tag, ADC, UART/SPI/TWI, PWM, I2S, and PDM. The device has a two-stage LDO voltage regulator and a DC-DC converter with a 1.7 to 5.5-V input supply range, allowing the nRF52833 SoC to be powered by coin-cells, rechargeable batteries, or the on-chip USB.
nRF52833 engineering samples are available now with volume production Q4, 2019. The SoC will be made available in three different packages: a 7×7 mm aQFN73 with 42 GPIOs, a 5×5 mm QFN40 with 18 GPIOs and a 3.2×3.2 mm wlCSP with 42 GPIOs.