Features：

• Core: Arm® Cortex®-M4 32-bit CPU with FPU(72 MHz max), single-cycle multiplication andHW division, DSP instruction and MPU(memory protection unit)

• Operating conditions:

– VDD, VDDA voltage range: 2.0 V to 3.6 V• Memories

– 128 to 256 Kbytes of Flash memory

– Up to 40 Kbytes of SRAM, with HW paritycheck implemented on the first 16 Kbytes.

• CRC calculation unit

• Reset and supply management

– Power-on/power-down reset (POR/PDR)

– Programmable voltage detector (PVD)

– Low-power modes: Sleep, Stop andStandby

– 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

• Interconnect matrix

• 12-channel DMA controller

• Two ADCs 0.20 µS (up to 17 channels) withselectable resolution of 12/10/8/6 bits, 0 to3.6 V conversion range, singleended/differential input, separate analogsupply from 2 to 3.6 V

• One 12-bit DAC channel with analog supplyfrom 2.4 to 3.6 V

• Four fast rail-to-rail analog comparators withanalog supply from 2 to 3.6 V

• Two operational amplifiers that can be used inPGA mode, all terminals accessible withanalog supply from 2.4 to 3.6 V

• Up to 24 capacitive sensing channels supportingtouchkey, linear and rotary touch sensors

• Up to 11 timers

– One 32-bit timer and two 16-bit timers withup to 4 IC/OC/PWM or pulse counter andquadrature (incremental) encoder input

– One 16-bit 6-channel advanced-controltimer, with up to 6 PWM channels,deadtime generation and emergency stop

– One 16-bit timer with 2 IC/OCs, 1OCN/PWM, deadtime generation andemergency stop

– Two 16-bit timers with IC/OC/OCN/PWM,deadtime generation and emergency stop

– Two watchdog timers (independent,window)

– SysTick timer: 24-bit downcounte

r– One 16-bit basic timer to drive the DAC

• Calendar RTC with Alarm, periodic wakeupfrom Stop/Standby

• Communication interfaces

– CAN interface (2.0B Active)

– Two I2C Fast mode plus (1 Mbit/s) with20 mA current sink, SMBus/PMBus,wakeup from STOP

– Up to five USART/UARTs (ISO 7816interface, LIN, IrDA, modem control)