Features

? Core: Arm? 32-bit Cortex?-M0+ CPU,

frequency up to 48 MHz

? -40°C to 85°C/105°C/125°C operating

temperature

? Memories

– Up to 32 Kbytes of flash memory with

protection

– 12 Kbytes of SRAM with HW parity check

? CRC calculation unit

? Reset and power management

– Voltage range: 2.0 V to 3.6 V

– Power-on/Power-down reset (POR/PDR)

– Programmable Brownout reset (BOR)

– Low-power modes:

Sleep, Stop, Standby, Shutdown

? Clock management

– 4 to 48 MHz crystal oscillator

– 32 kHz crystal oscillator with calibration

– Internal 48 MHz RC oscillator (±1 )

– Internal 32 kHz RC oscillator (±5 )

? Up to 45 fast I/Os

– All mappable on external interrupt vectors

– Multiple 5 V-tolerant I/Os

? 3-channel DMA controller with flexible mapping

? 12-bit, 0.4 μs ADC (up to 19 ext. channels)

– Conversion range: 0 to 3.6 V

? 8 timers: 16-bit for advanced motor control,

four 16-bit general-purpose, two watchdogs,

SysTick timer

? Calendar RTC with alarm

? Communication interfaces

– One I2C-bus interface supporting Fastmode

Plus (1 Mbit/s) with extra current

sink, supporting SMBus/PMBus and

wakeup from Stop mode

– Two USARTs with master/slave

synchronous SPI; one supporting ISO7816

interface, LIN, IrDA capability, auto baud

rate detection and wakeup feature

– One SPI (24 Mbit/s) with 4- to 16-bit

programmable bitframe, multiplexed with

I2S interface

? Development support: serial wire debug (SWD)

? All packages ECOPACK 2 compliant