技术特性

• Core: ARM® 32-bit Cortex™-M4F CPU (72 MHz max), single-cycle multiplication and HW division, DSP instruction with FPU (floating-point unit) and MPU (memory protection unit).
• Operating conditions:
  • VDD: 1.8V +/- 8%
  • VDDAvoltage range: 1.65 to 3.6 V
• Memories
  • 128 to 256 Kbytes of Flash memory
  • Up to 40 Kbytes of SRAM on data bus with HW parity check
  • 8 Kbytes of SRAM on instruction bus with HW parity check (CCM)
• CRC calculation unit
• Reset and supply management
  • Low power modes: Sleep and Stop
  • VBAT supply for RTC and backup registers
• Clock management
  • 4 to 32 MHz crystal oscillator
  • 32 kHz oscillator for RTC with calibration
  • Internal 8 MHz RC with x 16 PLL option
  • Internal 40 kHz oscillator
• Up to 87 fast I/Os
  • All mappable on external interrupt vectors
  • Several 5 V-tolerant
• 12-channel DMA controller
• Up to four ADC 0.20 μS (up to 39 channels) with selectable resolution of 12/10/8/6 bits, 0 to 3.6 V conversion range, separate analog supply from 1.8 to 3.6 V
• Up to two 12-bit DAC channels with analog supply from 2.4 to 3.6 V
• Seven fast rail-to-rail analog comparators with analog supply from 1.65 to 3.6 V
• Up to four operational amplifiers that can be used in PGA mode, all terminal accessible with analog supply from 2.4 to 3.6 V
• Support for up to 23 capacitive sensing keys supporting touchkey, linear and rotary touchsensors
• Up to 13 timers
  • One 32-bit timer and two 16-bit timers with up to 4 IC/OC/PWM or pulse counter and quadrature (incremental) encoder input
  • Up to two 16-bit 6-channel advanced-control timers, with up to 6 PWM channels, deadtime generation and emergency stop
  • One 16-bit timer with 2 IC/OCs, 1 OCN/PWM, deadtime generation and emergency stop
  • Two 16-bit timers with IC/OC/OCN/PWM, deadtime generation and emergency stop
  • Two watchdog timers (independent, window)
  • SysTick timer: 24-bit downcounter
  • Up to two 16-bit basic timers to drive the DAC
• Calendar RTC with Alarm, periodic wakeup from Stop
• Communication interfaces
  • CAN interface (2.0B Active)
  • Two I²C Fast mode plus (1 Mbit/s) with 20 mA current sink, SMBus/PMBus, wakeup from STOP
  • Up to five USART/UARTs (ISO 7816 interface, LIN, IrDA, modem control)
  • Up to three SPIs, two with multiplexed I2S interface, 4 to 16 programmable bit frame
  • Infrared Transmitter
• Serial wire debug, JTAG, Cortex-M4F ETM
• 96-bit unique ID

管脚定义图