The nRF51822-CEAA-R-D0 is a powerful, highly flexible single-chip solution for ultra-low power wireless applications manufactured by Nordic Semiconductors. It's built around a 32-bit ARM Cortex-M0 CPU with 256KB flash and 16KB RAM. The nRF51822 supports Bluetooth Low Energy (Bluetooth Smart) and a range of proprietary 2.4GHz protocols.

Applications

• Wearable devices (smart watches, fitness trackers)
• Beacons
• Proximity marketing
• Wireless sensors
• Remote controls
• Internet of Things (IoT) devices
• Computer peripherals

Features

• Bluetooth Low Energy (BLE) compliant
• Proprietary 2.4GHz protocol support
• 32-bit ARM Cortex-M0 CPU
• 256KB Flash memory
• 16KB RAM
• Programmable Peripheral Interconnect (PPI)
• Digital interfaces: SPI, I2C, UART
• 10-bit ADC
• Low power consumption
• On-chip balun
• Operating Voltage: 1.8V to 3.6V

Benefits

• Enables ultra-low power wireless communication.
• Provides a versatile platform for a wide range of applications.
• Simplifies development with a comprehensive SDK and tools.
• Reduces BOM cost with integrated functionality.
• Supports Over-The-Air (OTA) firmware updates.
• Offers robust security features.
• Fast time-to-market with a pre-certified radio.

Additional Details

The nRF51822-CEAA-R-D0 incorporates a highly integrated radio transceiver, minimizing the need for external components. It supports a variety of power management features, including automatic power management and wake-on-radio. The programmable peripheral interconnect (PPI) system allows peripherals to interact directly with each other without CPU intervention, further reducing power consumption. The device is available in a QFN (Quad Flat No-leads) package. The Nordic SDK provides a comprehensive set of APIs and examples to accelerate application development. Security features include AES encryption and link layer privacy. The on-chip balun simplifies antenna matching and reduces component count. The radio supports data rates of up to 1 Mbps in Bluetooth Low Energy mode. The datasheet provides detailed information on electrical characteristics, radio performance, and memory organization. It's a popular choice for battery-powered wireless applications due to its ultra-low power consumption and rich feature set. The D0 suffix indicates a specific tape and reel packaging option.