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 with protection – 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