Features：

• Core: Arm® 32-bit Cortex®-M0+ CPU,frequency up to 64 MHz

• -40°C to 85°C/105°C/125°C operatingtemperature

• Memories

– Up to 64 Kbytes of Flash memory withprotection and securable area

– 8 Kbytes of SRAM with HW parity check

• CRC calculation unit

• Reset and power management

– Voltage range: 1.7 V to 3.6 V

– Power-on/Power-down reset (POR/PDR)

– Programmable Brownout reset (BOR)

– Programmable voltage detector (PVD)

– Low-power modes:Sleep, Stop, Standby, Shutdown

– VBAT supply for RTC and backup registers

• Clock management

– 4 to 48 MHz crystal oscillator

– 32 kHz crystal oscillator with calibration

– Internal 16 MHz RC with PLL option (±1 %)

– Internal 32 kHz RC oscillator (±5 %)

• Up to 44 fast I/Os

– All mappable on external interrupt vectors

– Multiple 5 V-tolerant I/Os

• 5-channel DMA controller with flexible mapping

• 12-bit, 0.4 µs ADC (up to 16 ext. channels)

– Up to 16-bit with hardware oversampling

– Conversion range: 0 to 3.6V

• 11 timers (one 128 MHz capable): 16-bit foradvanced motor control, one 32-bit and four16-bit general-purpose, two low-power 16-bit,two watchdogs, SysTick timer

• Calendar RTC with alarm and periodic wakeupfrom Stop/Standby/Shutdown

• Communication interfaces

– Two I2C-bus interfaces supporting Fastmode Plus (1 Mbit/s) with extra currentsink, one supporting SMBus/PMBus andwakeup from Stop mode

– Two USARTs with master/slavesynchronous SPI; one supporting ISO7816interface, LIN, IrDA capability, auto baudrate detection and wakeup feature

– One low-power UART

– Two SPIs (32 Mbit/s) with 4- to 16-bitprogrammable bitframe, one multiplexedwith I2S interface

• Development support: serial wire debug (SWD)

• 96-bit unique ID

• All packages ECOPACK 2 compliant