Description
The nRF51422 is a high-performance, ultra-low-power multiprotocol System-on-Chip (SoC) specifically designed for Bluetooth Low Energy (BLE) and ANT applications. It combines an ARM Cortex-M0 CPU with a best-in-class 2.4GHz radio transceiver, making it a highly integrated solution for the Internet of Things (IoT), wearables, and wireless sensor networks.
One of the key strengths of this SoC is its architecture, which separates the application code from the protocol stack. This ensures higher reliability and simplifies development, as developers can update their application without impacting the complex radio stack. With support for proprietary 2.4GHz protocols, BLE, and ANT, it offers incredible flexibility for developers building connected devices.
Note: Product images are for illustrative purposes only. Please refer to the official Nordic Semiconductor datasheet for detailed register descriptions, pin assignments, and RF layout design guidelines.
Features
- Multiprotocol Support: Native support for Bluetooth Low Energy (BLE), ANT, and proprietary 2.4GHz stacks.
- Core Architecture: ARM Cortex-M0 CPU for efficient processing.
- Programmable Peripheral Interconnect (PPI): Allows peripherals to interact autonomously without CPU intervention, saving significant power.
- Memory: Available in 256kB/128kB Flash and 32kB/16kB RAM variants.
- Flexible I/O: Fully configurable GPIO mapping and comprehensive digital interfaces including SPI, I2C, and UART.
- Power Management: Optimized for low-power operation, perfect for coin-cell battery-powered wearables.
Benefits
- Independent Development: The separation of the protocol stack and user application simplifies debugging and firmware updates.
- High Integration: Reduces overall BOM (Bill of Materials) by integrating CPU, memory, and radio in a tiny 6x6mm package.
- Pin Compatibility: Compatible with other devices in the nRF51 series, allowing for easy hardware scaling.
- Power Efficiency: Advanced features like PPI and EasyDMA reduce CPU load, significantly extending battery life.
Applications
- Wearables: Fitness trackers and smartwatches.
- Healthcare: Medical wearable sensors and health monitoring devices.
- Smart Home: Connected light switches, sensors, and home automation nodes.
- Computer Peripherals: Wireless keyboards, mice, and remote controls.
- ANT+ Networks: Specialized low-power sensor networks for sports and fitness equipment.
Package Includes
- 1 x NRF51422-QFAC-R SoC (48-Pin QFN)
Specifications
| Parameter | Specification |
|---|---|
| Product Name | nRF51422-QFAC-R |
| Max Input Voltage | 3.6 V |
| RF Frequency | 2.4 GHz |
| Data Rate | 2 Mbps |
| Receiver Sensitivity | -96 dBm |
| Communication Interfaces | I2C, SPI, UART |
| Package / Case | QFN-48 |
| Dimensions (L × W × H) | 6 × 6 × 1.25 mm |
