NRF52833-QDAA-R QFN-40 Bluetooth 5.3 Multi-protocol 2.4GHz Low Power Wireless SoC Chip

NRF52833-QDAA-R Product Overview

NRF52833-QDAA-R is a high-performance multi-protocol wireless SoC of Nordic nRF52 series in QFN-40 (5×5mm) package. It adopts 64MHz ARM Cortex-M4F core with FPU, supports Bluetooth 5.3, BLE, Bluetooth Mesh, NFC, Thread and Zigbee. It integrates Bluetooth direction finding and supports extended temperature up to 105℃, ideal for industrial and consumer IoT wireless devices.

NRF52833-QDAA-R Core Features

①64MHz ARM Cortex-M4F core with FPU, 512KB Flash and 128KB RAM

②2.4GHz RF radio with Bluetooth AoA/AoD direction finding, +8dBm TX power, -103dBm long-range sensitivity

③Built-in 128-bit AES hardware encryption, secure boot & firmware protection

④1.7V~5.5V wide supply voltage, integrated DC-DC & LDO regulators

⑤Rich peripherals: USB2.0 full speed, 12-bit ADC, SPI, I2C, UART, PDM, I2S, PWM, QDEC

⑥Compact QFN-40 5×5mm package, OTA DFU supported, operating temp -40℃~+105℃

NRF52833-QDAA-R Applications

Asset tracking & positioning, Bluetooth Mesh smart lighting, industrial IoT sensors, premium wearables, wireless mouse & keyboard, smart home controllers, NFC interactive devices, medical monitoring modules, Bluetooth direction-finding beacons.

NRF52833-QDAA-R Advantages

The core advantage of the NRF52833-QDAA-R lies in its combination of 105°C extended temperature range and multiprotocol concurrency. It supports concurrent operation of multiple protocols in the 2.4GHz band — such as Bluetooth LE together with Bluetooth Mesh, Thread, or Zigbee — making it ideal for professional lighting and asset tracking in commercial and industrial applications.

105°C Extended Temperature Qualification: Operating from -40°C to +105°C, one of the few nRF52 Series models qualified for 105°C operation, ideal for professional lighting and industrial environments.

Multiprotocol Concurrency, One Chip for Multiple Uses: Supports Bluetooth 5.4, Bluetooth Mesh, Thread, Zigbee, NFC, and 2.4GHz proprietary protocols with concurrent operation in the 2.4GHz band.

Bluetooth Direction Finding: Supports Bluetooth Direction Finding for asset tracking and Real-Time Location Systems (RTLS).

1:4 RAM-to-Flash Ratio & +8dBm Output Power: The nRF52833-QDAA-R features a 1:4 RAM-to-Flash ratio and +8dBm output power, suitable for advanced wearables or smart home applications where robust coverage is important.

Mature nRF Connect SDK Ecosystem: Complete nRF Connect SDK with Zephyr RTOS, protocol stacks, samples, and hardware drivers, with support for the nRF52833 DK development kit.

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FAQs:

1. Question: What is the nRF52833-QDAA-R chip?
   Answer: It is an ultra-low-power multiprotocol wireless SoC from Nordic Semiconductor, built around a 64 MHz Arm Cortex-M4 with FPU, supporting Bluetooth 5.4, Bluetooth Mesh, Thread, Zigbee, and NFC.

2. Question: What is the core processor and frequency?
   Answer: It features a 64 MHz Arm Cortex-M4 processor with a floating-point unit (FPU), efficiently handling complex wireless protocols and user application code.

3. Question: What is the memory capacity?
   Answer: It includes 512 KB of Flash program memory and 128 KB of RAM. The 1:4 RAM-to-Flash ratio is suitable for running large applications and protocol stacks.

4. Question: Which wireless protocols does it support?
   Answer: It supports Bluetooth 5.4 (including 2 Mbps, Long Range, and Direction Finding), Bluetooth Mesh, IEEE 802.15.4 (Thread and Zigbee), NFC-A tag, and 2.4 GHz proprietary protocols.

5. Question: What is the purpose of the Bluetooth Direction Finding feature?
   Answer: It supports Bluetooth 5.1 Angle of Arrival (AoA) and Angle of Departure (AoD). With ample memory, it can serve as both receiver and transmitter simultaneously, ideal for Real-Time Locating Systems (RTLS) and Indoor Positioning Systems (IPS).

6. Question: What is the operating temperature range?
   Answer: It supports an extended industrial temperature range of -40°C to +105°C, higher than the nRF52840's +85°C, making it suitable for high-temperature applications such as professional lighting.

7. Question: What is the operating voltage range?
   Answer: The supply voltage range is 1.7V to 5.5V, allowing power from coin cells, rechargeable batteries, or USB directly. It integrates a DC-DC regulator and automatic power management system.

8. Question: How is the RF performance?
   Answer: It offers +8 dBm maximum TX power and -95 dBm RX sensitivity at 1 Mbps. Combined with Bluetooth 5 Long Range, it provides robust connection coverage.

9. Question: What hardware security features are available?
   Answer: It integrates a 128-bit AES/ECB/CCM/AAR hardware encryption accelerator with support for secure boot and key storage, ensuring wireless communication and data security.

10. Question: What are the main application scenarios?
    Answer: It is widely used in professional lighting, asset tracking, Real-Time Locating Systems (RTLS), advanced wearables, smart home, gaming solutions, and industrial IoT applications.