This is an ARM-based 32-bit MCU, equipped with 64 or 128KB Flash, a USB interface, a CAN interface, 7 timers, 2 ADCs, and 9 communication interfaces.

ARM 32-bit Cortex-M3 CPU core, up to 72MHz, 1.25 DMIPS/MHz (Dhrystone 2.1) performance with 0-wait-state memory access, supports single-cycle multiplication and hardware division Memory: 64 or 128KB Flash memory, 20KB SRAM Clock, reset and power management: Application power and I/O voltage range 2.0 to 3.6V; supports POR, PDR and programmable voltage detector (PVD); 4 to 16MHz crystal oscillator; internal 8MHz factory-trimmed RC; internal 40kHz RC; PLL for CPU clock; calibrated 32kHz RTC oscillator Low power: Supports sleep, stop and standby modes; VBAT power for RTC and backup registers 2x 12-bit ADCs (1μs conversion time, up to 16 channels): Conversion range 0 to 3.6V, supports dual sample-and-hold function, built-in temperature sensor DMA: 7-channel DMA controller, supports timer, ADC, SPI, I2C and USART peripherals Up to 80 fast I/O ports: 26/37/51/80 I/Os, all mappable to 16 external interrupt vectors, almost all I/Os are 5V tolerant Package types: VFQFPN36 (6×6mm), UFQFPN48 (7×7mm), BGA100 (10×10mm), UFBGA100 (7×7mm), BGA64 (5×5mm), LQFP100 (14×14mm), LQFP64 (10×10mm), LQFP48 (7×7mm) Debug mode: Supports Serial Wire Debug (SWD) and JTAG interfaces 7 timers: 3x 16-bit timers (up to 4 IC/OC/PWM or pulse counters each, supports quadrature encoder input); 1x 16-bit motor control PWM timer (with dead-time generation and emergency stop); 2x watchdog timers (independent and window); 24-bit down-counting SysTick timer Up to 9 communication interfaces: Up to 2x I2C interfaces (SMBus/PMBus); up to 3x USART (supports ISO7816 interface, LIN, IrDA capability, modem control); up to 2x SPI (18Mbit/s); CAN interface (2.0B Active); USB 2.0 full-speed interface Equipped with CRC calculation unit and 96-bit ID; packaged as ECOPACK®