特性
　　Low Supply-Voltage Range, 1.8 V to 3.6 V
　　Ultra-Low Power Consumption
　　Active Mode (AM)
　　All System Clocks Active:
　　195 ?A/MHz at 8 MHz, 3 V, Flash Program Execution (Typical)
　　115 ?A/MHz at 8 MHz, 3 V, RAM Program Execution (Typical)
　　Standby Mode (LPM3)
　　Real Time Clock With Crystal, Watchdog, and Supply Supervisor Operational,
　　Full RAM Retention, Fast Wake-Up: 1.9 ?A at 2.2 V, 2.1 ?A at 3 V (Typical)
　　Low-Power Oscillator (VLO), General-Purpose Counter, Watchdog,
　　and Supply Supervisor Operational, Full RAM Retention,
　　Fast Wake-Up: 1.4 ?A at 3 V (Typical)
　　Off Mode (LPM4)
　　Full RAM Retention, Supply Supervisor Operational, Fast Wake-Up:
　　1.1 ?A at 3 V (Typical)
　　Shutdown Mode (LPM4.5)
　　0.18 ?A at 3 V (Typical)
　　Wake-Up From Standby in Less Than 5 ?s
　　16-Bit RISC Architecture, Extended Memory, Up to 25-MHz System Clock
　　Flexible Power Management System
　　Fully Integrated LDO With Programmable Regulated Core Supply Voltage
　　Supply Voltage Supervision, Monitoring, and Brownout
　　Unified Clock System
　　FLL Control Loop for Frequency Stabilization
　　Low-Power Low-Frequency Internal Clock Source (VLO)
　　Low-Frequency Trimmed Internal Reference Source (REFO)
　　32-kHz Watch Crystals (XT1)