CSR1010A05-IQQM-R

Bluetooth 4.1 low energy radio with direct
single-ended 50Ω antenna connection
50kB of user app space
Switch-mode power supply and linear
regulators
Up to 4.4V direct supply connection for
Li-poly batteries
Wake-up interrupt and watchdog timer
Time-stamping hardware
1 µA integrated key scanning hardware
Peripheral (I2C) and debug interfaces (SPI)
Integrated Bluetooth 4.1 qualified stack
On-chip temperature and battery
monitoring
PWM hardware blocks for LED patterns
and motor control
Master and slave operation, including
encryption
Software development kit with C compiler
and debug tools