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/105°C/125°C operatingtemperature

• Memories

– Up to 512 Kbytes of flash memory withprotection and securable area, two banks,read-while-write support

– 144 Kbytes of SRAM (128 Kbytes with HWparity check)

• CRC calculation unit

• Reset and power management

– Voltage range: 1.7 V to 3.6 V

– Separate I/O supply pin (1.65 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 48 MHz RC oscillator

– Internal 32 kHz RC oscillator (±5 %)

• Up to 94 fast I/Os

– All mappable on external interrupt vectors

– Multiple 5 V-tolerant I/Os

• 12-channel DMA controller with flexiblemapping

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

– Up to 16-bit with hardware oversampling

– Conversion range: 0 to 3.6V

• Two 12-bit DACs, low-power sample-and-hold

• Three fast low-power analog comparators, withprogrammable input and output, rail-to-rail

• 15 timers (two 128 MHz capable): 16-bit foradvanced motor control, one 32-bit and six 16-bit general-purpose, two basic 16-bit, two lowpower 16-bit, two watchdogs, SysTick timer

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

• Communication interfaces

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

– Six USARTs with master/slavesynchronous SPI; three supportingISO7816 interface, LIN, IrDA capability,auto baud rate detection and wakeupfeature

– Two low-power UARTs

– Three SPIs (32 Mbit/s) with 4- to 16-bitprogrammable bitframe, two multiplexedwith I2S interface; six extra SPIs throughUSARTs

– HDMI CEC interface, wakeup on header

• USB 2.0 FS device (crystal-less) and hostcontroller

• USB Type-C™ Power Delivery controller

• Two FDCAN controllers

• Development support: serial wire debug (SWD)

• 96-bit unique ID

• All packages ECOPACK 2 compliant