技术特性

• 内核：ARM 32位Cortex™-M3 CPU
  • 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
  • 64 to 256 Kbytes of Flash memory
  • 64 Kbytes of general-purpose 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)
  • 3-to-25 MHz crystal oscillator
  • Internal 8 MHz factory-trimmed RC
  • Internal 40 kHz RC with calibration
  • 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通道)
  • Conversion range: 0 to 3.6 V
  • Sample and hold capability
  • Temperature sensor
  • up to 2 MSPS in interleaved mode
• 2个12位D/A转换器
• DMA：12通道的DMA控制器
  • Supported peripherals: timers, ADCs, DAC, I2Ss, SPIs, I²Cs and USARTs
• 调试模式
  • Serial wire debug (SWD) & JTAG interfaces
  • Cortex-M3 Embedded Trace Macrocell™
• 多达80个高速I/O端口
  • 51/80 I/Os, all mappable on 16 external interrupt vectors and almost all 5 V-tolerant
• CRC计算单元、96位唯一ID
• 多达10个具有管脚重映射功能的定时器
  • Up to four 16-bit timers, each with up to 4 IC/OC/PWM or pulse counter and quadrature (incremental) encoder input
  • 1 × 16-bit motor control PWM timer with dead-time generation and emergency stop
  • 2 × watchdog timers (Independent and Window)
  • SysTick timer: a 24-bit downcounter
  • 2 × 16-bit basic timers to drive the DAC
• 多达14个具有管脚重映射功能的通信接口
  • Up to 2 × I²C interfaces (SMBus/PMBus)
  • Up to 5 USARTs (ISO 7816 interface, LIN, IrDA capability, modem control)
  • Up to 3 SPIs (18 Mbit/s), 2 with a multiplexed I2S interface that offers audio class accuracy via advanced PLL schemes
  • 2 × CAN interfaces (2.0B Active) with 512 bytes of dedicated SRAM
  • USB 2.0 full-speed device/host/OTG controller with on-chip PHY that supports HNP/SRP/ID with 1.25 Kbytes of dedicated SRAM
  • 10/100 Ethernet MAC with dedicated DMA and SRAM (4 Kbytes): IEEE1588 hardware support, MII/RMII available on all packages

功能框图