nRF51822-CFAC-R Bluetooth Low Energy SoC – QFN-48

Description

The nRF51822-CFAC-R is a high-performance, ultra-low-power (ULP) System-on-Chip (SoC) engineered specifically for Bluetooth Low Energy (BLE) and 2.4GHz wireless applications. Built upon the energy-efficient 32-bit ARM Cortex-M0 core, this IC is a favored solution for portable devices that require reliable wireless communication while maintaining stringent battery life requirements.

A standout feature of this SoC is its independent software architecture, which separates the radio protocol stack from the application code. This modular design significantly reduces the risk of bugs during firmware development and simplifies the process of upgrading wireless protocols. Furthermore, the chip incorporates advanced power management features, including the Programmable Peripheral Interconnect (PPI) system, which allows hardware peripherals to trigger actions autonomously without involving the CPU.

Note: Product images are for illustrative purposes only. Please consult the official Nordic Semiconductor technical documentation for specific pin assignments, register mapping, and RF performance optimization guidelines.

Features

• Multiprotocol Radio: Native support for Bluetooth Low Energy (BLE) and proprietary 2.4GHz protocols.
• Core Architecture: 32-bit ARM Cortex-M0 processor for efficient application processing.
• Memory: Integrated 256kB Flash and 32kB RAM to support complex wireless profiles.
• PPI System: Enables direct hardware-to-hardware communication, saving significant energy by reducing CPU active time.
• Connectivity: Versatile digital interfaces including SPI, I2C, and UART.
• Package: Compact 48-pin QFN package, ideal for high-density wearable electronics.

Benefits

• Ultra-Low Power: Specifically optimized for coin-cell-operated medical and wearable sensors.
• Firmware Stability: The separation of the protocol stack and application code makes development safer and more reliable.
• Hardware Flexibility: High-speed GPIOs and configurable interfaces allow it to adapt to diverse sensor needs.
• Proven Ecosystem: Backed by extensive Nordic software libraries and development tools.

Applications

• Medical and Healthcare Wearable Sensors
• Advanced Fitness and Activity Trackers
• Smart Home Environmental Nodes
• Wireless Peripheral Devices (Mice, Keyboards, Remote Controls)
• Proximity and Asset Tracking Beacons

Package Includes

• 1 x nRF51822-CFAC-R Bluetooth SoC (QFN-48)

Specifications