NRF52833-QDAA-R7 Multiprotocol Bluetooth 5.4 SoC 64MHz Arm Cortex-M4 512KB Flash QFN-40

NRF52833-QDAA-R7 Product Overview

NRF52833-QDAA-R7 is an industrial-grade multiprotocol 2.4GHz wireless SoC from Nordic, packaged in QFN-40-EP(5x5). It integrates a 64MHz Cortex-M4 core with FPU, 512KB Flash and 128KB RAM. It supports Bluetooth 5.1, Bluetooth Mesh, NFC, Thread and Zigbee with Bluetooth direction finding function. Operating temperature ranges from -40℃ to 105℃, ideal for IoT wireless end devices.

NRF52833-QDAA-R7 Key Features

64MHz Arm Cortex-M4 Processor with Ample Memory: Features a 64MHz Arm Cortex-M4 processor with FPU, 512KB Flash, 128KB RAM, and 8KB cache. EEMBC CoreMark score of 217 running from flash, with CoreMark power consumption of only 52 μA/MHz (from flash) and 38 μA/MHz (from RAM). The 1:4 RAM-to-Flash ratio provides ample memory for complex applications.

Multiprotocol Wireless: Supports Bluetooth 5.4 (with 2Mbps high throughput, 1Mbps, Long Range, and Bluetooth Direction Finding), Bluetooth Mesh, NFC-A, Thread, Zigbee, and 2.4GHz proprietary protocols. TX power +8dBm, RX sensitivity -95dBm (1 Mbps) to -103dBm. TX current 4.9mA (0dBm), RX current 4.6mA (1 Mbps).

Rich Interfaces & Wide Voltage: Includes NFC-A, 12-bit 200ksps ADC (8 channels), Full-speed 12 Mbps USB 2.0, High-speed 32 MHz SPI, UART/SPI/TWI, PWM, I2S, and PDM. Operating voltage 1.7V ~ 5.5V, powerable from rechargeable batteries or USB, with integrated DC-DC regulator and automated power management. 18 GPIOs.

Extended Temperature Range: Qualified for operation at -40°C to +105°C, meeting the demanding requirements of professional lighting and industrial applications.

NRF52833-QDAA-R7 Application

Industrial IoT wireless nodes, smart lighting Mesh network, asset tracking, smart home, wearable electronics, wireless remote control, BLE sensors, Zigbee gateway, Bluetooth beacon.

NRF52833-QDAA-R7 Advantages

Extended temperature up to 105℃ for harsh industrial & outdoor scenarios. Dynamic multiprotocol support in one single chip. Hardware encryption protects data security. Compact QFN package saves PCB space. Ultra-low power for longer battery life. Code compatible with nRF52 series for easy firmware migration.

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FAQs

1. Question: What is the nRF52833-QDAA-R7 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 in a QFN-40 package.

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), achieving an EEMBC CoreMark score of 217 running from Flash with about 52 μA/MHz power consumption.

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 -103 dBm RX sensitivity in Bluetooth LE Coded PHY mode, or -95 dBm at 1 Mbps. TX current is approximately 4.9 mA and RX current is 4.6 mA.

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.