Nordic Semiconductors nRF51822 is a 2.4GHz multi-protocol RF transceiver SoC for Bluetooth Smart and Nordic Gazell protocol applications. It integrates an RF transceiver, ARM Cortex-M0 core microcontoller, Flash memory and analogue/digital peripherals on to a single QFN48 chip. The Gazell protocol is on-air compatible with the nRF24L series of transceivers.
nRF51 series 2.4GHz RF transceiver RF Output Power: +4dBm Receiver Sensitivity: -93dBm @ 1Mbps OTA Data Rate: Up to 2Mbps Supports Bluetooth BLE/Smart and Gazell low-power protocols 32-bit ARM Cortex-M0 core microcontroller 8 channel 8/9/10-bit ADC 31 x GPIO Serial communication: UART, SPI, I²C Quadrature decoder AES-128 encryption Real Time Clock (RTC) Flexible power management system Power supply: +1.8V to +3.6Vdc Operating temperature range: -40 to +105ºC Applications: Wearables, Sports, fitness & healthcare sensors, Smart Watches, Industrial & commercial sensors, Internet of Things (IoT)
