All features
Core: Arm® 32-bit Cortex®-M0+ CPU, frequency up to 64 MHz
-40°C to 85°C operating temperature
Memories
128 Kbytes of Flash memory with protection
36 Kbytes of SRAM (32 Kbytes 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 59 fast I/Os
All mappable on external interrupt vectors
Multiple 5 V-tolerant I/Os
7-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
11 timers: 16-bit for advanced motor control, five 16-bit general-purpose, two basic 16-bit, two watchdogs, SysTick timer
Calendar RTC with alarm and periodic wakeup from Stop/Standby
Communication interfaces
Two I2C-bus interfaces supporting Fast-mode Plus (1 Mbit/s) with extra current sink, one supporting SMBus/PMBus and wakeup from Stop mode
Four USARTs with master/slave synchronous SPI; two 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