nRFnRF52805-CAAA-R
Overview
The nRF52805-CAAA-R is an entry-level Bluetooth 5.2 SoC designed for low-cost, space-constrained wireless applications. Built around a 64MHz Arm Cortex-M4 processor, it offers 192kB Flash and 24kB RAM in a tiny 2.48mm x 2.46mm WLCSP package. It provides a cost-optimized solution for simple BLE connectivity while maintaining compatibility with the Nordic nRF52 series ecosystem.
Why Choose This Part
The nRF52805 features an on-chip balun for a single-ended antenna output, reducing the external Bill of Materials (BOM) and PCB complexity. It achieves a high sensitivity of -97dBm and low power consumption, drawing as little as 0.3uA in shutdown mode, which is critical for coin-cell operated devices.
Applications
Key Specifications
Getting Started
Development is supported via the nRF Connect SDK, which integrates the Zephyr RTOS and provides extensive BLE software stacks. Engineers typically use the nRF52 DK (PCA10040) or nRF52840 DK for initial code development before porting to the nRF52805. Hardware debugging is handled through the integrated Serial Wire Debug (SWD) interface.
