User's Manual

 Watchdog used for tracking unexpected exception

Integrated Power Control and Regulation

 Embedded Power-On-Reset

 Low power 0.9v core voltage

 On-chip high efficiency switch-mode power supply, 1.8v to 4.3v input direct from battery and programmable output

voltage

 On-chip Low Dropout (LDO) Linear Regulator for internal Digital, RF and Analog circuit

 Power management features include software shutdown and hardware wake-up

 Power-on-reset cell detects low supply voltage

 Internal voltage level detector

Application circuit

Electrical parameters

 Maximum rating