Features
• Core: Arm® 32-bit Cortex®-M0+ CPU,
frequency up to 64 MHz
• -40°C to 85°C/105°C/125°C operating
temperature
• Memories
– Up to 512 Kbytes of Flash memory with
protection and securable area, two banks,
read-while-write support
– 144 Kbytes of SRAM (128 Kbytes with HW
parity check)
• CRC calculation unit
• Reset and power management
– Voltage range: 1.7 V to 3.6 V
– Separate I/O supply pin (1.6 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 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
• Two 12-bit DACs, low-power sample-and-hold
• Three fast low-power analog comparators, with
programmable input and output, rail-to-rail
• 15 timers (two 128 MHz capable): 16-bit for
advanced 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 wakeup
from Stop/Standby/Shutdown
• Communication interfaces
– Three I2C-bus interfaces supporting Fastmode
Plus (1 Mbit/s) with extra current
sink, two supporting SMBus/PMBus and
wakeup from Stop mode
– Six USARTs with master/slave
synchronous SPI; three supporting
ISO7816 interface, LIN, IrDA capability,
auto baud rate detection and wakeup
feature
– Two low-power UARTs
– Three SPIs (32 Mbit/s) with 4- to 16-bit
programmable bitframe, two multiplexed
with I2S interface
– HDMI CEC interface, wakeup on header
• USB 2.0 FS device (crystal-less) and host
controller
• USB Type-C™ Power Delivery controller
• Two FDCAN controllers
• True random number generator (RNG)
• AES encryption with 128/256-bit key
• Development support: serial wire debug (SWD)
• 96-bit unique ID
• All packages ECOPACK 2 compliant