NRF52833-QDAA-B-R

NRF52833-QDAA-B-R is Nordic’s nRF52833 Bluetooth 5.x system-on-chip in the QDAA packaging variant. It combines a 64 MHz ARM Cortex-M4F MCU with a 2.4 GHz radio and supports Bluetooth Low Energy (including 2 Mbps PHY and advertising extensions) and other 2.4 GHz protocols via SoftDevice.
Key specs (typical):
- Memory: 1 MB flash, 256 KB RAM
- Peripherals: GPIO, ADC, SPI, I2C, UART, PWM, timers, PPI/DPPI, RNG, cryptography engine
- Power: ultra-low-power with multiple sleep modes; DC-DC or LDO options
- Development: supported by nRF Connect SDK, SoftDevices, Segger Embedded Studio
Applications: wearables, beacons, sensors, and wireless accessories.
Suffix meaning: -B-R indicates industrial temperature range and RoHS-compliant packaging. For exact package dimensions, temperature spec, and electrical details, refer to the official product page/datasheet.

NRF52833-QDAA-B-R features (concise):
- CPU: 64 MHz ARM Cortex-M4F with FPU
- Memory: 1 MB flash, 256 KB RAM
- Wireless: 2.4 GHz multi-protocol transceiver (BLE 5.x with 2M/Coded PHY, ANT, Thread, Zigbee, and 802.15.4/proprietary 2.4 GHz)
- Security: hardware cryptography engine and RNG; secure boot and OTA updates
- Peripherals: up to 48 GPIOs; UART, SPI, I2C, I2S; PWM; timers; 12-bit ADC; PDM interface
- DMA/Link: Easy DMA and PPI for efficient peripheral coupling
- Power: optimized for low power with multiple sleep modes and wide voltage range
- Package/Temp: QFN-48 (6x6 mm); industrial temp range (-40 to +85°C)
- Tools: supported by Nordic nRF Connect SDK and Segger debugging
Note: exact memory/peripheral counts may vary by revision; refer to the official product page for precise specs.

- Pin count: 48 pins (QFN48) for the NRF52833-QDAA-B-R package.
- Function: This is the nRF52833 SoC in a QFN48 package. It provides power pins (VDD, VDDH, GND) and about 40 I/O pins multiplexed to peripherals: UART, SPI (SPIM/SPIS), I2C/TWIM, QSPI, PWM, timers, PDM, SAADC (12-bit ADC), etc. It also includes a 2.4 GHz transceiver (BLE/802.15.4) and a Cortex-M4F core. The -R suffix denotes reel packaging; QDAA is the package/variant code.

- Manufacturer: Nordic Semiconductor ASA.
- Company type: A Norwegian fabless semiconductor company that designs and markets ultra-low-power wireless SoCs (BLE, ANT, Thread) for short-range wireless and outsources manufacturing to semiconductor foundries.

Main application areas for the nRF52833-QDAA-B-R include:
- Wearables and fitness devices (low‑power BLE, sensing)
- Smart home/building automation (sensors, actuators, lighting, doors)
- Beacons, proximity and asset tracking (iBeacon/Eddystone, tags)
- Medical and wellness devices (health monitors, sensors)
- Industrial IoT sensors and controllers (environmental monitoring, predictive maintenance)
- Consumer electronics and remote controls (peripherals, wireless keyboards/mice)
- NFC pairing and simplified setup (tap-to-pair)

It uses a QFN package—specifically QFN-48 (7×7 mm). The trailing -R indicates tape-and-reel packaging.