技术特性

• Complete system-on-chip
  • 32-bit ARM® Cortex™-M3 processor
  • 2.4 GHz IEEE 802.15.4 transceiver & lower MAC
  • 8-Kbyte RAM and 64-Kbyte Flash memory
  • AES128 encryption accelerator
  • Flexible ADC, SPI/UART/I²C serial communications, and general-purpose timers
  • 24 highly configurable GPIOs with Schmitt trigger inputs
• Industry-leading ARM® Cortex™-M3 processor
  • Leading 32-bit processing performance
  • Highly efficient Thumb®-2 instruction set
  • Operation at 6, 12 or 24 MHz
  • Flexible nested vectored interrupt controller
• Low power consumption, advanced management
  • Receive current (w/ CPU): 27 mA
  • Transmit current (w/ CPU, +3 dBm TX): 31 mA
  • Low deep sleep current, with retained RAM and GPIO: 400 nA/800 nA with/without sleep timer
  • Low-frequency internal RC oscillator for low-power sleep timing
  • High-frequency internal RC oscillator for fast (100 μs) processor start-up from sleep
• Exceptional RF performance
  • Normal mode link budget up to 102 dB; configurable up to 107 dB
  • -99 dBm normal RX sensitivity; configurable to -100 dBm (1% PER, 20 byte packet)
  • +3 dB normal mode output power; configurable up to +8 dBm
  • Robust WiFi and Bluetooth coexistence
• Innovative network and processor debug
  • Non-intrusive hardware packet trace
  • Serial wire/JTAG interface
  • Standard ARM debug capabilities: Flash patch and breakpoint; data watchpoint and trace; instrumentation trace macrocell
• Application flexibility
  • Single voltage operation: 2.1-3.6 V with internal 1.8 V and 1.25 V regulators
  • Optional 32.768 kHz crystal for higher timer accuracy
  • Low external component count with single 24 MHz crystal
  • Support for external power amplifier
  • Small 7x7 mm 48-pin VFQFPN package

功能框图