EmbeddedRelated.com
    Parts    NRF52811-QCAA-R7
NRF52811-QCAA-R7

NRF52811-QCAA-R7

Nordic Semiconductor ASA
IC RF TxRx + MCU 802.15.4, Bluetooth Bluetooth v5.3, Thread 2.4GHz 32-VFQFN Exposed Pad
Active1,823 in stock
Datasheet Digi-Key Mouser Compare Prices

Overview

The NRF52811-QCAA-R7 is a high-performance, ultra-low power multiprotocol SoC designed for cost-sensitive Bluetooth 5.3 and 802.15.4 applications. It features a 64 MHz ARM Cortex-M4 processor with 192kB Flash and 24kB RAM, optimized for Direction Finding and complex wireless protocols in a compact 32-VFQFN package. The integrated balun and flexible power management system reduce external component count and PCB footprint.

Why Choose This Part

This SoC offers a unique balance of advanced Bluetooth 5.3 features, including 2Mbps data rates, with a highly optimized memory footprint for cost efficiency. The wide supply voltage range of 1.7V to 3.6V and integrated DC/DC regulator allow for direct operation from diverse battery chemistry types without sacrificing efficiency.

Applications

Direction Finding (AoA/AoD)
Utilizes Bluetooth 5.1/5.3 Angle of Arrival and Angle of Departure capabilities for high-precision indoor positioning and asset tracking.
Smart Home Lighting
Leverages 802.15.4 and Thread support for building-scale mesh networking in low-power connected lighting systems.
Wireless HID Devices
Ideal for battery-operated computer peripherals such as mice and keyboards due to low peak TX currents of 4.6 mA at 0 dBm.
Disposable Medical Sensors
Small form factor and low standby current of 0.3 uA make it suitable for temporary wearable health monitors and patches.

Key Specifications

GPIO 17
Type TxRx + MCU
Protocol Bluetooth v5.3, Thread
Frequency 2.4GHz
Memory Size 192kB Flash, 24kB RAM
Sensitivity -104dBm
Mounting Type Surface Mount
Package / Case 32-VFQFN Exposed Pad
Power - Output 4dBm
Data Rate (Max) 2Mbps
Voltage - Supply 1.7V ~ 3.6V
Serial Interfaces ADC, PDM, PWM, SPI, UART
RF Family/Standard 802.15.4, Bluetooth
Current - Receiving 3.5mA ~ 11.2mA
Operating Temperature -40degC ~ 85degC
Current - Transmitting 2.1mA ~ 15.4mA
Supplier Device Package 32-QFN (5x5)

Getting Started

Start development using the Nordic nRF5 SDK or the nRF Connect SDK, which provide comprehensive drivers and protocol stacks like SoftDevice. Hardware evaluation is best performed on the nRF52-DK (PCA10040) or the nRF52840-DK, which can be configured to emulate nRF52811 behavior. Programming is handled via the Serial Wire Debug (SWD) interface using a standard J-Link debugger.

NRF52811 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Package GPIO Interfaces Protocol Sensitivity RF Family/Standard Stock
NRF52811-QCAA-R7 (this part) VFQFN-32 17 ADC, PDM, PWM, SPI.. Bluetooth v5.3, Th.. -104dBm 802.15.4, Bluetooth 1,823
NRF52811-CAAA-R UFBGA-33 — ADC, PDM, PWM, SPI.. Bluetooth v5.3, Th.. -104dBm 802.15.4, Bluetooth 19,463
NRF52811-QCAA-B-R7 VFQFN-32 4 PWM, SPI, UART 802.15.4, Zigbee -96dBm 802.15.4 1,992
NRF52811-QFAA-R VFQFN-48 — ADC, PWM, SPI, UART Bluetooth v5.3, Th.. — Bluetooth 6,573
NRF52811-QCAA-R VFQFN-32 17 ADC, PDM, PWM, SPI.. Bluetooth v5.3, Th.. -104dBm 802.15.4, Bluetooth 5,603
NRF52811-QFAA-R7 VFQFN-48 — ADC, PDM, PWM, SPI.. Bluetooth v5.3, Th.. -104dBm 802.15.4, Bluetooth 1,053
NRF52811-CAAA-B-R7 UFBGA-33 4 PWM, SPI, UART 802.15.4, Zigbee -96dBm 802.15.4 1,541

Also Consider

NRF52832-QFAA-R7 nRFNordic Semiconductor - Offers more memory (512kB Flash/64kB RAM) and an FPU for applications requiring higher computational power or larger software stacks.
NRF52840-QIAA-R7 nRFNordic Semiconductor - Provides full Bluetooth 5 Long Range support, integrated USB, and significantly higher RAM/Flash capacity.
EFR32BG22 SiLSilicon Labs - Alternative low-power Bluetooth SoC with similar Cortex-M4 performance and highly competitive energy consumption profiles.