Document
STM32F042x4 STM32F042x6
ARM®-based 32-bit MCU, up to 32 KB Flash, crystal-less USB FS 2.0, CAN, 9 timers, ADC and comm. interfaces, 2.0 - 3.6 V
Datasheet - production data
Features
• 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
• Clock management – 4 to 32 MHz crystal oscillator – 32 kHz oscillator for RTC with calibration – Internal 8 MHz RC with x6 PLL option – Internal 40 kHz RC oscillator – Internal 48 MHz oscillator with automatic trimming based on ext. synchronization
• Up to 38 fast I/Os – All mappable on ext.