nRF52833-QIAA-R Multiprotocol Bluetooth 5.4 SoC 64MHz Arm Cortex-M4 512KB Flash AQFN-73

nRF52833-QIAA-R Product Overview

nRF52833-QIAA-R is Nordic industrial-grade multiprotocol 2.4GHz wireless SoC in AQFN-73-EP(7x7). It integrates 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. Operating temperature -40℃~105℃ with 42 GPIO pins, ideal for IoT wireless devices requiring plenty IO ports.

nRF52833-QIAA-R Key Features

64MHz Arm Cortex-M4 core with FPU;

512KB Flash + 128KB RAM;

2.4GHz RF, +8dBm transmit power, -95dBm sensitivity@1Mbps BLE;

Bluetooth Direction Finding AoA/AoD, BLE, Mesh, Zigbee, Thread, NFC;

128-bit AES hardware encryption, 12-bit ADC, full-speed USB2.0;

Rich peripherals: SPI, UART, I2S, PDM, PWM, 42 GPIO pins;

1.7V~5.5V power supply, integrated DC-DC & LDO, low power design;

AQFN-73-EP(7x7) with exposed pad for good heat dissipation and more IOs.

nRF52833-QIAA-R Application

Industrial IoT nodes, asset tracking, smart lighting Mesh, smart home control, multi-peripheral wearables, BLE sensors, wireless remote, Zigbee end device, Bluetooth beacon, medical wireless monitoring.

nRF52833-QIAA-R Advantages

AQFN73 package with 42 GPIO for more peripheral connections. Extended temperature up to 105℃ for harsh industrial/outdoor environments. Single chip supports dynamic multi-protocol switching. Hardware encryption protects wireless data. Ultra-low power extends battery life. Code compatible with nRF52 series for easy firmware migration.

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FAQs

1. Question: What is the nRF52833-QIAA-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 in an AQFN-73 package, 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), 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 are the advantages of the AQFN-73 package compared to the QFN-40 package of the QDAA-R7?
   Answer: The AQFN-73 package provides 42 GPIO pins within the same 7×7mm footprint, while the QFN-40 version offers only 18. For complex applications requiring many sensor or peripheral connections, the AQFN-73 package significantly simplifies routing and reduces the need for external multiplexers.

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.