Features
• Core: Arm® 32-bit Cortex®-M0+ CPU,
frequency up to 64 MHz
• -40°C to 85°C operating temperature
• Memories
– Up to 64 Kbytes of Flash memory
– 8 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)
– 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 44 fast I/Os
– All mappable on external interrupt vectors
– Multiple 5 V-tolerant I/Os
• 5-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
• 8 timers: 16-bit for advanced motor control,
four 16-bit general-purpose, two watchdogs,
SysTick timer
• Calendar RTC with alarm and periodic wakeup
from Stop/Standby
• Communication interfaces
– Two I2C-bus interfaces supporting Fastmode Plus (1 Mbit/s) with extra current
sink, one 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
– Two SPIs (32 Mbit/s) with 4- to 16-bit
programmable bitframe, one multiplexed
with I2S interface
• Development support: serial wire debug (SWD)
• All packages ECOPACK® 2 compliant