Features：

• Core: ARM® 32-bit Cortex®-M3 CPU

– 72 MHz maximum frequency, 1.25DMIPS/MHz (Dhrystone 2.1) performanceat 0 wait state memory access

– Single-cycle multiplication and hardware division

• Memories

– 64 to 256 Kbytes of Flash memory

– 64 Kbytes of general-purpose SRAM

• Clock, reset and supply management

– 2.0 to 3.6 V application supply and I/Os

– POR, PDR, and programmable voltagedetector (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

• Low power

– Sleep, Stop and Standby modes

– VBAT supply for RTC and backup registers

• 2 × 12-bit, 1 µs A/D converters (16 channels)

– Conversion range: 0 to 3.6 V

– Sample and hold capability

– Temperature sensor

– up to 2 MSPS in interleaved mode

• 2 × 12-bit D/A converters

• DMA: 12-channel DMA controller

– Supported peripherals: timers, ADCs, DAC,I2Ss, SPIs, I2Cs and USARTs

• Debug mode

– Serial wire debug (SWD) & JTAG interfaces

– Cortex®-M3 Embedded Trace Macrocell™

• Up to 80 fast I/O ports

– 51/80 I/Os, all mappable on 16 externalinterrupt vectors and almost all 5 V-tolerant

• CRC calculation unit, 96-bit unique ID

• Up to 10 timers with pinout remap capability

– Up to four 16-bit timers, each with up to 4IC/OC/PWM or pulse counter andquadrature (incremental) encoder input

– 1 × 16-bit motor control PWM timer withdead-time generation and emergency stop

– 2 × watchdog timers (Independent andWindow)

– SysTick timer: a 24-bit downcounter

– 2 × 16-bit basic timers to drive the DAC

• Up to 14 communication interfaces with pinoutremap capability

– 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 amultiplexed I2S interface that offers audioclass accuracy via advanced PLL schemes

– 2 × CAN interfaces (2.0B Active) with 512bytes of dedicated SRAM

– USB 2.0 full-speed device/host/OTG controllerwith on-chip PHY that supports HNP/SRP/IDwith 1.25 Kbytes of dedicated SRAM

– 10/100 Ethernet MAC with dedicated DMAand SRAM (4 Kbytes): IEEE1588 hardwaresupport, MII/RMII available on all packages