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