STM32F031F6P7 ST Mainstream Arm Cortex-M0 Access Line 32-bit MCU 32KB Flash 48MHz CPU 12-bit ADC TSSOP-20

STM32F031F6P7 Product Overview

The STM32F031F6P7 is a mainstream Arm Cortex-M0 access line 32-bit MCU from STMicroelectronics, housed in a TSSOP-20 package. It incorporates a 48 MHz high-performance Arm Cortex-M0 32-bit RISC core, with 32 KB Flash, 4 KB SRAM with hardware parity, and a CRC calculation unit. On-chip peripherals include a 12-bit ADC (up to 10 channels, 1.0 µs conversion time), 5-channel DMA controller, calendar RTC with alarm and periodic wakeup, up to 9 timers (including one 16-bit advanced-control timer for 6-channel PWM output with deadtime generation and emergency stop, one 32-bit and three 16-bit general-purpose timers, independent and system window watchdog timers, and SysTick timer), and I2C (Fast Mode Plus 1 Mbit/s), SPI (18 Mbit/s, with I2S interface multiplexed), and USART (supporting master synchronous SPI and modem control, ISO7816 interface, LIN, IrDA, auto baud rate detection and wakeup). The device provides 15 fast I/Os, all mappable on external interrupt vectors. It operates from 2.0 V to 3.6 V over -40 °C to 105 °C. All packages are ECOPACK®2 compliant.[reference:11][reference:12][reference:13][reference:14]

STM32F031F6P7 Core Features

Arm Cortex-M0 Core: 32-bit Arm Cortex-M0 RISC core, up to 48 MHz, with built-in Nested Vectored Interrupt Controller Memory: 32 KB Flash, 4 KB SRAM with hardware parity, CRC calculation unit 12-bit ADC: 1.0 µs conversion time, up to 10 channels, conversion range 0 to 3.6 V, separate analog supply 2.4 V to 3.6 V 5-Channel DMA Controller: Flexible mapping for memory-to-memory, peripheral-to-memory, and memory-to-peripheral transfers 9 Timers: One 16-bit advanced-control timer (6-channel PWM output, deadtime generation, emergency stop), one 32-bit general-purpose timer (up to 4 IC/OC, usable for IR control decoding), three 16-bit general-purpose timers (one with emergency stop and modulator gate for IR control), independent watchdog, system window watchdog, SysTick timer Calendar RTC: With alarm and periodic wakeup from Stop/Standby Communication Interfaces: One I2C (Fast Mode Plus 1 Mbit/s support, SMBus/PMBus, 20 mA current sink, wakeup from Stop), one USART (supporting master synchronous SPI and modem control, ISO7816 interface, LIN, IrDA, auto baud rate detection and wakeup), one SPI (18 Mbit/s, 4 to 16 programmable bit frames, I2S interface multiplexed) Low-Power Modes: Sleep, Stop, Standby Clock Management: 4–32 MHz crystal oscillator, 32 kHz RTC crystal oscillator with calibration, internal 8 MHz RC with x6 PLL option, internal 40 kHz RC oscillator I/O Resources: 15 fast I/Os, all mappable on external interrupt vectors High Reliability: Power-on/power-down reset (POR/PDR), programmable voltage detector (PVD), serial wire debug (SWD), 96-bit unique ID Wide Operating Range: 2.0 V to 3.6 V, -40 °C to 105 °C (extended temperature range compared to standard -40 °C to 85 °C) Green Packaging: ECOPACK®2 compliant, TSSOP-20 package

STM32F031F6P7 Applications

Consumer Electronics: Remote controls, electric toothbrushes, electronic toys, handheld devices, PC peripherals (printers, scanners) Industrial Control: Sensor transmitters, RS-485 communication nodes, small actuators, process monitoring Home Appliances: Induction/microwave oven panels, HVAC systems, alarm systems, smart lighting IoT Nodes: Wireless sensor terminals, environmental monitoring modules, smart home control LED Lighting: Dimming control, RGB strip drivers, switching power supply management Motor Control: Fans, pumps, small motor drives — advanced-control timer supports 6-channel PWM output, deadtime generation, and emergency stop Automotive Electronics: Vehicle light control, window anti-pinch, automotive sensor nodes (non-safety-critical)

STM32F031F6P7 Key Advantages

Arm Cortex-M0 32-bit Performance: 48 MHz high-performance 32-bit ARM core, far exceeding 8/16-bit MCU processing capability for complex algorithms -40 °C to 105 °C Extended Temperature Range: Wider operating temperature compared to standard -40 °C to 85 °C, suitable for industrial-grade and outdoor applications 32 KB Flash + 4 KB SRAM Configuration: 32 KB Flash program memory, 4 KB SRAM with hardware parity, meeting storage needs for low-to-medium complexity applications TSSOP-20 Compact Package: 6.5×4.4 mm small footprint, 15 fast I/Os, ideal for space-constrained applications 12-bit High-Speed ADC: 1.0 µs conversion time, 10 channels, separate analog supply, analog watchdog for precise monitoring 5-Channel DMA Offloads CPU: Enables direct data transfer between peripherals and memory, significantly reducing CPU load I2C Fast Mode Plus: 1 Mbit/s communication rate, 20 mA high current sink capability, SMBus/PMBus support — ideal for power management and sensor applications Rich Timer Resources: One 16-bit advanced-control timer (6-channel PWM, deadtime generation, emergency stop) + one 32-bit general-purpose timer (supporting IR control decoding) — ideal for motor control and infrared remote control applications Calendar RTC: Built-in hardware RTC with alarm and periodic wakeup — ideal for scheduled sensing applications Mature STM32 Ecosystem: Compatible with STM32CubeIDE, STM32CubeMX, HAL libraries, abundant development boards and reference designs Cost-Effective Access Line: 32-bit ARM performance at a competitive price — the ideal upgrade path from 8/16-bit MCUs

Why Choose QIXINWEI

Years of experience in the electronics industry. Trusted by global customers.

Massive In-Stock Inventory – Ready to ship promptly

BOM Matching Service – One-stop solution, save time

PCBA Customization – Professional engineering team creates tailor-made solutions based on your needs

Cost-Effective & Efficient – Better channel, better cost

A dedicated team makes your procurement smoother.

Contact us for BOM quotes or PCBA inquiries

FAQ:

1. What is the STM32F031F6P7 and what are its key specifications?
   The STM32F031F6P7 is a 32‑bit ARM Cortex‑M0 microcontroller from STMicroelectronics, clocked at up to 48 MHz with 32 KB of Flash and 4 KB of SRAM. It features a 12‑bit 1 Msps ADC, an advanced‑control timer (TIM1) with four complementary PWM outputs and hardware dead‑time insertion, plus standard serial interfaces (USART, SPI, I2C). All of this is housed in a compact TSSOP‑20 package, which is easy to hand‑solder and ideal for space‑sensitive, cost‑conscious applications such as sensor nodes, small motor drives, and portable instruments. It operates over an extended temperature range from ‑40 °C to +105 °C, making it suitable for harsh environments.

2. What are the package dimensions and pin pitch of the STM32F031F6P7?
   The device uses a TSSOP‑20 package with a body size of 6.5 mm × 4.4 mm and a lead pitch of 0.65 mm. The overall height is approximately 1.0 mm. This package offers a great balance between compact footprint and ease of prototyping, as the exposed leads can be easily hand‑soldered and visually inspected, unlike QFN or BGA packages.

3. How does the STM32F031F6P7 differ from the STM32F031G6U6? Which one should I choose?
   Both share the same core, memory (32 KB Flash, 4 KB SRAM), and peripherals, including the advanced timer TIM1 and 12‑bit ADC. The key difference is the package: the F031F6P7 comes in a TSSOP‑20 with 15 I/O pins, while the G6U6 uses an ultra‑small UFQFPN28 (4×4 mm) with up to 23 I/O pins. Choose the F031F6P7 when you need a hand‑solderable, through‑hole‑friendly (with adapters) package for prototyping or low‑volume production, and can work with fewer I/Os. Choose the G6U6 when board space is the absolute priority and you need the extra pins for more peripherals or ADC channels.

4. How does the STM32F031F6P7 compare with the STM32F030F4P6? What are the key upgrades?
   The STM32F030F4P6 is a cost‑optimized variant with only 16 KB Flash and 4 KB SRAM, and it lacks the advanced timer TIM1 — it only provides basic timers. The STM32F031F6P7 doubles the Flash to 32 KB and adds TIM1 with complementary PWM and dead‑time, making it capable of directly driving brushless motors or half‑bridge power stages. If your application needs motor control, complex waveform generation, or extra code space, the F031F6P7 is a clear upgrade while remaining in the same TSSOP‑20 footprint.

5. Is 32 KB Flash and 4 KB SRAM enough for motor control and communication stacks?
   Absolutely, with optimized firmware. 32 KB of Flash can comfortably hold a field‑oriented control (FOC) or six‑step commutation algorithm, a UART/SPI communication stack, and sensor drivers, often leaving room for updates. The 4 KB SRAM needs careful memory planning — storing lookup tables in Flash and using DMA for ADC/serial transfers minimizes RAM usage. Many successful designs in power tools, small drones, and industrial actuators prove that this memory configuration is sufficient for real‑time motor control. If you later need more room, you can migrate to the STM32F071F6P6 (64 KB Flash, 16 KB SRAM) or the STM32G0 series.

6. What are the ADC specifications of the STM32F031F6P7, and how many analog channels can I use?
   It includes a 12‑bit successive‑approximation ADC with a maximum sampling rate of 1 Msps. In the TSSOP‑20 package, you can access up to 9 external analog channels: 8 channels (IN0–IN7) through pins PA0–PA7, and 1 channel (IN9) via PB1. Additionally, the ADC can sample the internal temperature sensor and the internal voltage reference without using any external pins. This makes the chip very capable for multi‑sensor data acquisition like motor phase‑current sensing and environmental monitoring.

7. Can the STM32F031F6P7 be powered by 5 V? Are its GPIOs 5‑volt tolerant?
   The supply voltage must be within 2.0 V to 3.6 V; applying 5 V to the VDD pin is not allowed. However, most I/O pins (including PA0–PA7, PB1, PF0, PF1) are marked as FT (5‑volt tolerant) and can safely accept input voltages up to 5 V. This allows you to directly connect 5 V logic devices — either as inputs or via open‑drain outputs with external pull‑ups — eliminating the need for external level shifters and simplifying mixed‑voltage designs.

8. How low is the power consumption of the STM32F031F6P7? Is it suitable for battery operation?
   The chip offers excellent low‑power performance. In Run mode at 48 MHz with all peripherals on, the typical current is about 12.3 mA. Sleep mode drops this to around 2.5 mA. In Stop mode, with 4 KB SRAM and registers retained, consumption falls to approximately 5 µA. Standby mode further reduces it to just 1.2 µA. Fast wake‑up from Stop mode allows the MCU to respond quickly to external interrupts or UART data, making it ideal for battery‑powered devices that sleep most of the time and wake up only for brief measurement or communication tasks.

9. How do I program and debug the STM32F031F6P7? What development tools are needed?
   Programming and debugging use the SWD (Serial Wire Debug) interface, needing only SWDIO, SWCLK, VCC, and GND. A low‑cost ST‑LINK/V2 or STLINK‑V3 debugger is all the hardware you need. On the software side, the free STM32CubeIDE is fully supported, along with Keil MDK and IAR EWARM. The STM32CubeMX graphical tool helps you quickly configure pins and peripherals. ST also provides comprehensive HAL and LL libraries with example projects, so you can have a working prototype in very little time.

10. What are the most typical applications for the STM32F031F6P7?
    The STM32F031F6P7 is widely used in compact brushless DC motor controllers (small power tools, drone ESCs, micro pumps), smart sensors, portable medical instruments, battery chargers, and cost‑optimized industrial nodes. Its hand‑solderable TSSOP‑20 package, combined with the TIM1 advanced motor‑control timer and a 12‑bit 1 Msps ADC, makes it a favorite for rapid prototyping and small‑ to medium‑volume production where ease of assembly and reliable performance are equally important.