Features

• Includes ST state-of-the-art patentedtechnology

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

• -40°C to 85°C operating temperature

• Memories

– 128 Kbytes of flash memory with protection

– 36 Kbytes of SRAM (32 Kbytes with HWparity check)

• CRC calculation unit

• Reset and power management

– Voltage range: 2.0 V to 3.6 V

– Power-on/Power-down reset (POR/PDR)

– Low-power modes:Sleep, Stop, Standby

– 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

– Internal 32 kHz RC oscillator (±5 %)

• Up to 59 fast I/Os

– All mappable on external interrupt vectors

– Multiple 5 V-tolerant I/Os

• 7-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: 16-bit for advanced motor control,five 16-bit general-purpose, two basic 16-bit,two watchdogs, SysTick timer

• Calendar RTC with alarm and periodic wakeupfrom Stop/Standby

• Communication interfaces

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

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

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

• Development support: serial wire debug (SWD)

• All packages ECOPACK 2 compliant