技术特性

• 内核：ARM 32位Cortex™-M3 CPU
  • 48 MHz maximum frequency, 1.25 DMIPS/MHz (Dhrystone 2.1) performance at 0 WS memory access
  • Single-cycle multiplication and hardware division
• 存储器
  • 16 or 32 Kbytes of Flash memory
  • 4 or 6 Kbytes of SRAM
• 时钟、复位和电源管理
  • 2.0 to 3.6 V application supply and I/Os
  • POR, PDR and programmable voltage detector (PVD)
  • 4-to-16 MHz crystal oscillator
  • Internal 8 MHz factory-trimmed RC
  • Internal 40 kHz RC
  • PLL for CPU clock
  • 32 kHz oscillator for RTC with calibration
• 低功耗
  • Sleep, Stop and Standby modes
  • VBAT supply for RTC and backup registers
• 调试模式
  • Serial wire debug (SWD) and JTAG interfaces
• DMA
  • 7-channel DMA controller
  • Peripherals supported: timers, ADC, SPIs, I²Cs and USARTs
• 1个12位、1.2μs A/D转换器(多达16通道)
  • Conversion range: 0 to 3.6 V
  • Temperature sensor
• 多达51个高速I/O端口
  • 37/51 IOs all mappable on 16 external interrupt vectors and almost all 5 V-tolerant
• 多达5个定时器
  • Two 16-bit timers, each with up to 4 IC/OC/PWM or pulse counter
  • 2 watchdog timers (Independent and Window)
  • SysTick timer: 24-bit downcounter
• 多达5个通信接口
  • 1 x I²C interface (SMBus/PMBus)
  • 2 USARTs (ISO 7816 interface, LIN, IrDA capability, modem control)
  • 1 SPI (12 Mbit/s)
  • USB 2.0 full speed interface
• CRC计算单元、96位唯一ID
• ECOPACK® 封装

功能框图