The STM32F038xx microcontrollers incorporate the high-performance ARM Cortex -M0 32-bit RISC core operating at a 48 MHz maximum frequency, high-speed embedded memories (32 Kbytes of Flash memory and 4 Kbytes of SRAM), and an extensive range of enhanced peripherals and I/Os. All devices offer standard communication interfaces (one I²C, one SPI/ I²S and one USART), one 12-bit ADC, up to five general-purpose 16-bit timers, a 32-bit timer and an advanced-control PWM timer.The STM32F038xx microcontrollers operate in the -40 to +85 °C and -40 to +105 °C temperature ranges at a 1.8 V ± 8% power supply. A comprehensive set of power-saving modes allows the design of low-power applications.The STM32F038xx microcontrollers include devices in four different packages ranging from 20 pins to 48 pins with a die form also available upon request. Depending on the device chosen, different sets of peripherals are included. The description below provides an overview of the complete range of STM32F038xx peripherals proposed.These features make the STM32F038xx microcontrollers suitable for a wide range of applications such as application control and user interfaces, handheld equipment, A/V receivers and digital TV, PC peripherals, gaming and GPS platforms, industrial applications, PLCs, inverters, printers, scanners, alarm systems, video intercoms, and HVACs.Core: ARM® 32-bit Cortex® -M0 CPU, frequency up to 48 MHzMemories32 Kbytes of Flash memory4 Kbytes of SRAM with HW parityCRC calculation unitPower managementDigital and I/Os supply: VDD= 1.8 V ±8%Analog supply: VDDA= from VDDto 3.6 VLow power modes: Sleep, StopVBATsupply for RTC and backup registersClock management4 to 32 MHz crystal oscillator32 kHz oscillator for RTC with calibrationInternal 8 MHz RC with x6 PLL optionInternal 40 kHz RC oscillatorUp to 39 fast I/OsAll mappable on external interrupt vectorsUp to 25 I/Os with 5 V tolerant capability5-channel DMA controller1 × 12-bit, 1.0 µs ADC (up to 10 channels)Conversion range: 0 to 3.6VSeparate analog supply from 2.4 up to 3.6 VUp to 9 timers1 x 16-bit 7-channel adva