Multiprotocol with 512KB Flash and 128KB RAM
Simultaneous execution of Bluetooth LE, Mesh, Thread, and Zigbee
Bluetooth 5.1 supports all-direction detection


On the 21st, Nordic Semiconductor announced the nRF52833 multiprotocol SoC, the fifth product in the nRF52 series.

The nRF52833 supports Bluetooth LE (Low Energy), Thread, Zigbee, and proprietary 2.4GHz wireless connectivity. It is suitable for a wide range of commercial and industrial wireless applications, including professional lighting and asset tracking, smart home products, and advanced wearable and gaming solutions.

It is based on a Floating Point Unit (FPU) and a 64MHz 32-bit Arm Cortex-M4 processor and has obtained certification for operation in a temperature range of -40 to 105℃.

It has 512KB of flash capacity and 128KB of RAM memory, and also supports multi-protocol functionality. It can perform Bluetooth LE and mesh/thread/Zigbee simultaneously, enabling interaction between smartphones and lighting mesh networks, as well as provisioning and commissioning.

The nRF52833 supports all direction finding functions of Bluetooth 5.1 and, through its large memory, serves as a receiver and transmitter for Angle-of-Arrival (AoA) and Angle-of-Departure (AoD) applications.

Direction finding capabilities enable the implementation of signal direction-based location applications as well as Received Signal Strength Indication (RSSI). Key applications include Real Time Location System (RTLS) and Indoor Positioning System (IPS).

The nRF52833 provides full-speed USB, high-speed SPI, and +8dBm output power capabilities that were previously only available on the nRF52840 multiprotocol SoC.

It is equipped with up to 42 GPIOs and various analog and digital interfaces such as NFC-A tag, ADC, UART/SPI/TWI, PWM, I2S, and PDM.

It has a built-in 2-stage LDO voltage regulator and a DC-DC converter with an input supply voltage range of 1.7 to 5.5 V, so it can be powered via a coin cell, a rechargeable battery, or an on-chip USB.

The nRF52833 is supported by Nordic's Bluetooth RF protocol stack, the S113 or S140 SoftDevice. S140 is a certified Bluetooth 5.1 stack and supports a transmission speed of 2 Mbps, Bluetooth's long range, and enhanced coexistence through Channel Selection Algorithm #2.

The nRF5 SDK (Software Development Kit) provides examples, libraries, and drivers necessary for Bluetooth LE development. Mesh, Thread, and ZigBy nRF5 SDKs are scheduled to be released in the fourth quarter of 2019.

The nRF52833 comes with the nRF52833 DK (Development Kit). The DK is a multi-functional single-board development kit for Bluetooth LE/Mesh, 802.15.4, Thread, Zigbee, and proprietary 2.4GHz applications running on the nRF52833. Because it is compatible with the Arduino Uno Rev3 standard, compatible Nordic Power Profiler Kits and shields from various vendors can be used during development.

Kjetil Holstad, Director of Product Management at Nordic Semiconductor, stated, “The nRF52833 provides greater functionality to hardware and software platforms used in hundreds of millions of products worldwide,” adding, “This reliability is particularly important in commercial and industrial markets, where product lifespans are generally long.”

nRF52833 engineering samples are currently being supplied and are scheduled for mass production in the fourth quarter of 2019.

It is supplied in three package types, including a 7×7mm QFN73 package providing 42 GPIOs, a 5×5mm QFN40 package providing 18 GPIOs, and a 3.2×3.2mm wlCSP package providing 42 GPIOs.