Description
The nRF51822 is a powerful, highly flexible multi-protocol System-on-Chip (SoC) specifically built for Bluetooth Low Energy (BLE) and 2.4GHz ultra-low-power wireless applications. Built around the 32-bit ARM Cortex-M0 CPU, this IC is designed to minimize power consumption while providing the processing power necessary for modern, connected smart devices.
The nRF51822 is widely recognized for its “software architecture” approach, which decouples the wireless protocol stack from the application code. This separation ensures that developers can build robust applications without needing to worry about the complexities of the radio stack, significantly accelerating development time and simplifying debugging processes.
Note: Product images are for illustrative purposes only. The actual package marking may vary. Please consult the official Nordic Semiconductor datasheet for comprehensive electrical characteristics, pin assignments, and circuit layout recommendations.
Features
- Wireless Protocol: Native support for Bluetooth Low Energy (BLE) and proprietary 2.4GHz radio.
- Core Architecture: Energy-efficient 32-bit ARM Cortex-M0 CPU.
- Memory: Features 256kB of Flash memory and 32kB of RAM to support complex application logic.
- Programmable Peripheral Interconnect (PPI): Allows hardware peripherals to communicate autonomously, reducing CPU load and power usage.
- Flexible I/O: Fully configurable GPIO mapping with a rich set of digital interfaces including SPI, I2C, and UART.
- Security: Advanced on-chip hardware encryption acceleration (AES).
Benefits
- Ultra-Low Power: Optimized for coin-cell battery operation in wearables and IoT sensors.
- Simplified Development: Decoupled software architecture allows for seamless firmware updates without interfering with the protocol stack.
- Compact Integration: Combines the MCU, memory, and radio into a single chip, minimizing PCB footprint.
- High Reliability: Industry-standard ARM core ensures a stable and well-supported development ecosystem.
Applications
- Wearable Health and Fitness Devices
- Connected Home Sensors (Smart Home)
- Industrial IoT Wireless Nodes
- Proximity and Location Beacons
- Advanced Computer Peripherals
Package Includes
- 1 x nRF51822-QFAC-R7 Bluetooth LE SoC (QFN-48)
Specifications
| Parameter | Specification |
|---|---|
| Product Name | nRF51822-QFAC-R7 |
| Device Type | Bluetooth LE + 2.4GHz SoC |
| Package / Case | QFN-48 |
| Processor Core | 32-bit ARM Cortex-M0 |
| Mounting Type | Surface Mount (SMD) |
| Shipping Weight | 0.001 kg |
| Shipping Dimensions | 4 × 4 × 1 cm |
