nRF51822 Not Recommended for New Designs

Bluetooth Low Energy and 2.4 GHz SoC

The nRF51822 is a general purpose, ultra-low power SoC ideally suited for Bluetooth® Low Energy and 2.4 GHz proprietary wireless applications. It is built around the 32-bit ARM® Cortex™-M0 CPU with 256/128 KB flash and 32/16 KB RAM. The flexible 2.4 GHz radio supports Bluetooth Low Energy and 2.4 GHz proprietary protocols, such as Gazell.

It incorporates a rich selection of analog and digital peripherals that can interact directly without CPU intervention through the Programmable Peripheral Interconnect (PPI) system. Flexible GPIOs enables you to connect digital interfaces like SPI Master/slave, TWI Master and UART to any of the 31 GPIOs on the device.
 

Download nRF51822 product brief (PDF)

Download nRF51x22 QFAx Reference Layout v2.5 (ZIP)

Download nRF51x22 CxAx Reference Layout v1.4 (ZIP)

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Key Features
16 MHz Cortex-M0
256/128 KB Flash,
32/16 KB RAM
2.4 GHz Transceiver
2 Mbps, 1 Mbps, 250 kbps
Bluetooth Low Energy
+4 dBm TX Power
128-bit AES CCM
UART, SPI, TWI

10-bit ADC
Documentation
Downloads

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