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STM32F031C4：Mainstream ARM Cortex-M0 Access line MCU with 16 Kbytes Flash, 48 MHz CPU, motor control

The STM32F031x4/x6 microcontrollers incorporate the high-performance ARM Cortex^-M0 32-bit RISC core operating at a 48 MHz maximum frequency, high-speed embedded memories (up to 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 STM32F031x4/x6 microcontrollers operate in the -40 to +85 °C and -40 to +105 °C temperature ranges, from a 2.0 to 3.6 V power supply. A comprehensive set of power-saving modes allows the design of low-power applications.

The STM32F031x4/x6 microcontrollers include devices in five 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 STM32F031x4/x6 peripherals proposed.

These features make the STM32F031x4/x6 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.

Key Features

• Core: ARM® 32-bit Cortex® -M0 CPU, frequency up to 48 MHz
• Memories
  • 16 to 32 Kbytes of Flash memory
  • 4 Kbytes of SRAM with HW parity
• CRC calculation unit
• Reset and power management
  • Digital and I/Os supply: 2.0 to 3.6 V
  • Analog supply: VDDA = from VDD to 3.6 V
  • Power-on/Power-down reset (POR/PDR)
  • Programmable voltage detector (PVD)
  • Low power modes: Sleep, Stop and 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
• Up to 39 fast I/Os
  • All mappable on external interrupt vectors
  • Up to 25 I/Os with 5 V tolerant capability
• 5-channel DMA controller
• 1 × 12-bit, 1.0 μs ADC (up to 10 channels)
  • Conversion range: 0 to 3.6V
  • Separate analog supply from 2.4 up to 3.6 V
• Up to 9 timers
  • 1 x 16-bit 7-channel advanced-control timer for 6 channels PWM output, with deadtime generation and emergency stop
  • 1 x 32-bit and 1 x 16-bit timer, with up to 4 IC/OC, usable for IR control decoding
  • 1 x 16-bit timer, with 2 IC/OC, 1 OCN, deadtime generation and emergency stop
  • 1 x 16-bit timer, with IC/OC and OCN, deadtime generation, emergency stop and modulator gate for IR control
  • 1 x 16-bit timer with 1 IC/OC
  • Independent and system watchdog timers
  • SysTick timer: 24-bit downcounter
• Calendar RTC with alarm and periodic wakeup from Stop/Standby
• Communication interfaces
  • 1 x I2 C interface; supporting Fast Mode Plus (1 Mbit/s) with 20 mA current sink, SMBus/PMBus, and wakeup from Stop mode
  • 1 x USART supporting master synchronous SPI and modem control; one with ISO7816 interface, LIN, IrDA capability auto baud rate detection and wakeup feature
  • 1 x SPI (18 Mbit/s) with 4 to 16 programmable bit frames, with I2 S interface multiplexed
• Serial wire debug (SWD)
• 96-bit unique ID
• Extended temperature range: -40 to +105°C
• All packages ECOPACK® 2

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