Nordic Semiconductor NRF51822-QFAA-T, Bluetooth System On Chip SOC for Beacons, Computer Peripherals, I/O Devices,

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)

RS Product Codes
nRF51822-QFAA 256KB Flash memory, 16KB RAM (885-5776)
nRF51822-QFAC 256KB Flash memory, 32KB RAM (885-5788)
nRF51822-QFAB 128KB Flash memory, 16KB RAM (885-5785)