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nRF52811-QFAA-R7

nRF52811-QFAA-R7

MPN: NRF52811-QFAA-R7
Nordic Semiconductor ASA
IC RF TxRx + MCU 802.15.4, Bluetooth Bluetooth v5.3, Thread 2.4GHz 48-VFQFN Exposed Pad
Active1,053 in stock
Datasheet Digi-Key Compare Prices

Overview

The nRF52811-QFAA-R7 is a versatile multiprotocol SoC designed for ultra-low power wireless applications, featuring an ARM Cortex-M4 processor running at 64MHz. It provides a specialized feature set for Bluetooth 5.1 Direction Finding and Long Range, alongside support for 802.15.4 protocols like Thread and Zigbee.

Why Choose This Part

The SoC offers exceptional radio sensitivity of -104dBm and a peak TX current of only 4.6 mA at 0dBm, making it highly efficient for coin-cell powered designs. Its 192kB Flash and 24kB RAM are optimized for cost-sensitive projects that still require advanced Bluetooth 5.x features and a 64MHz ARM Cortex-M4 core.

Applications

Direction Finding
Utilizing Angle of Arrival (AoA) and Angle of Departure (AoD) capabilities for high-precision indoor positioning and asset tracking.
Smart Home Sensors
Ideal for battery-operated devices like door locks, temperature sensors, and light switches requiring Thread or Bluetooth LE connectivity.
HID Peripherals
Low-latency wireless communication for computer mice, keyboards, and presentation pointers with minimal power consumption.
Industrial IoT
Used in wireless sensor networks for monitoring equipment health using its integrated 12-bit ADC and low-power interfaces.

Key Specifications

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 48-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 4.6mA ~ 5.2mA
Current - Transmitting 4.6mA ~ 7mA
Supplier Device Package 48-QFN (6x6)

Getting Started

Development is best handled through the nRF Connect SDK and the nRF52-DK (PCA10040) or nRF52840-DK (PCA10056) for hardware emulation. Use the Segger Embedded Studio or VS Code extensions for firmware development, and program the chip via the standard SWD interface.

NRF52811 Family

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

Part Number Package Rx Current Tx Current Stock
NRF52811-QFAA-R7 (this part) VFQFN-48 4.6mA 4.6mA 1,053
NRF52811-QCAA-R VFQFN-32 3.5mA 2.1mA 5,603

Also Consider

nRF52832-QFAA-R7 nRFNordic Semiconductor - Offers significantly more memory with 512kB Flash and 64kB RAM for more complex application code.
nRF52840-QIAA-R7 nRFNordic Semiconductor - Provides full Bluetooth 5.3 support, higher output power, and integrated USB 2.0 controller.

Categories

Microcontrollers Wireless & Connectivity > Bluetooth & BLE Modules Microcontrollers > Nordic Semiconductor Microcontrollers > IoT & Wireless MCUs IoT & Smart Devices > IoT Modules & SoCs Wearables & Medical > Ultra-Low Power MCUs