Nordic Semiconductor NRF51422-QFAA-T , Bluetooth System On Chip SOC for Active RFID, Audience Response Systems,

Nordic Semiconductors nRF51422 is a 2.4GHz multi-protocol RF transceiver SoC for ANT, 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 QFN or WLCSP 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 (BLE), -90dBm @ 1Mbps (ANT)
OTA Data Rate: Up to 2Mbps
Supports Bluetooth BLE/Smart, ANT 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 encryption
Real Time Clock (RTC)
Flexible power management system
Power supply: +1.8V to +3.6Vdc
Operating temperature range: -25 to +75ºC
Applications: Mobile phone accessories, Wearables, Smart home, Proximity/Alert sensors, Sports, fitness & healthcare sensors, Smart RF tags, Toys & electronic games, Intelligent domestic appliances, Industrial & commercial sensors, Internet of Things (IoT)

RS Product Codes
nRF51422-QFAA 256KB Flash memory, 16KB RAM (885-5760)
nRF51422-QFAC 256KB Flash memory, 32KB RAM (885-5772)
nRF51422-QFAB 128KB Flash memory, 16KB RAM (885-5779)