The STM32F042x4/x6 microcontrollers incorporate the high-performance ARM? Cortex?-M0 32-bit RISC core operating at up to 48 MHz frequency, high-speed embedded memories (up to 32 Kbytes of Flash memory and 6 Kbytes of SRAM), and an extensive range of enhanced peripherals and I/Os. All devices offer standard communication interfaces (one I2C, two SPIs/one I2S, one HDMI CEC, and two USARTs), one USB Full-speed device (crystal-less), one CAN, one 12-bit ADC, four 16-bit timers, one 32-bit timer, and an advanced-control PWM timer.

Core: ARM? 32-bit Cortex?-M0 CPU,

frequency up to 48 MHz

Memories

– 16 to 32 Kbytes of Flash memory

– 6 Kbytes of SRAM with HW parity

CRC calculation unit

Reset and power management

– Digital and I/Os supply: VDD = 2 V to 3.6 V

– Analog supply: VDDA = from VDD to 3.6 V

– Selected I/Os: VDDIO2 = 1.65 V to 3.6 V

– Power-on/Power down reset (POR/PDR)

– Programmable voltage detector (PVD)

– Low power modes: Sleep, Stop, Standby

– VBAT supply for RTC and backup registers