The STM32F031x4/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 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, five 16-bit timers, one 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 six 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.
These features make the STM32F031x4/x6 microcontrollers suitable for a wide range of applications such as application control and user interfaces, hand-held 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.
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 VDDto 3.6 V
Power-on/Power-down reset (POR/PDR)
Programmable voltage detector (PVD)
Low power modes: Sleep, Stop and Standby
VBATsupply 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 26 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
Core Processor
ARM? Cortex?-M0
Core Size
32-Bit
Speed
48MHz
Connectivity
I2C, IrDA, LINbus, SPI, UART/USART
Peripherals
DMA, I2S, POR, PWM, WDT
Number of I/O
23
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
RAM Size
4K x 8
Voltage Supply (Vcc/Vdd)
2V ~ 3.6V
Data Converters
A/D 13x12b
Oscillator Type
Internal
Operating Temperature
-40??C ~ 85??C (TA)
Mounting Type
Surface Mount
Package / Case
28-UFQFN Exposed Pad
Supplier Device Package
28-UFQFPN (4x4)
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