Features：

• Core: ARM® 32-bit Cortex®-M0 CPU,frequency up to 48 MHz

• Memories

– 16 to 256 Kbytes of Flash memory

– 4 to 32 Kbytes of SRAM with HW parity

• CRC calculation unit

• Reset and power management

– Digital & I/Os supply: VDD = 2.4 V to 3.6 V

– Analog supply: VDDA = VDD to 3.6 V

– Power-on/Power down reset (POR/PDR)

– Low power modes: Sleep, Stop, Standby

• Clock management

– 4 to 32 MHz crystal oscillator–

 32 kHz oscillator for RTC with calibration

– Internal 8 MHz RC with x6 PLL option

– Internal 40 kHz RC oscillator

• Up to 55 fast I/Os

– All mappable on external interrupt vectors

– Up to 55 I/Os with 5V tolerant capability

• 5-channel DMA controller

• One 12-bit, 1.0 μs ADC (up to 16 channels)

– Conversion range: 0 to 3.6 V

– Separate analog supply: 2.4 V to 3.6 V

• Calendar RTC with alarm and periodic wakeupfrom Stop/Standby

• 11 timers

– One 16-bit advanced-control timer forsix-channel PWM output

– Up to seven 16-bit timers, with up to fourIC/OC, OCN, usable for IR controldecoding

– Independent and system watchdog timers

– SysTick timer

• Communication interfaces

– Up to two I2C interfaces

– one supporting Fast Mode Plus(1 Mbit/s) with 20 mA current sink,

– one supporting SMBus/PMBus.

– Up to six USARTs supporting mastersynchronous SPI and modem control; onewith auto baud rate detection

– Up to two SPIs (18 Mbit/s) with 4 to 16programmable bit frames

• Serial wire debug (SWD)

• All packages ECOPACK®2