技术特性

• ARM 32位Cortex™-M3 CPU内核
  • 72 MHz maximum frequency,1.25 DMIPS/MHz (Dhrystone 2.1) performance at 0 wait state memory access
  • Single-cycle multiplication and hardware division
• 存储器
  • 16 or 32 Kbytes of Flash memory
  • 6 or 10 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
• 2个12位、1μs A/D转换器(多达16个通道)
  • Conversion range: 0 to 3.6 V
  • Dual-sample and hold capability
  • Temperature sensor
• DMA
  • 7-channel DMA controller
  • Peripherals supported: timers, ADC, SPIs, I²Cs and USARTs
• 多达51个高速I/O端口
  • 26/37/51 I/Os, all mappable on 16 external interrupt vectors and almost all 5 V-tolerant
• 调试模式
  • Serial wire debug (SWD) & JTAG interfaces
• 6个定时器
  • Two 16-bit timers, each with up to 4 IC/OC/PWM or pulse counter and quadrature (incremental) encoder input
  • 16-bit, motor control PWM timer with dead-time generation and emergency stop
  • 2 watchdog timers (Independent and Window)
  • SysTick timer 24-bit downcounter
• 6个通信接口
  • 21 x I²C interface (SMBus/PMBus)
  • 2 × USARTs (ISO 7816 interface, LIN, IrDA capability, modem control)
  • 1 × SPI (18 Mbit/s)
  • CAN interface (2.0B Active)
  • USB 2.0 full-speed interface
• CRC计算单元、96位唯一ID
• 采用ECOPACK封装®

功能框图