STMicroelectronics STM32F031F4P6

Overview

STM32F031F4P6 from STMicroelectronics is an ARM® Cortex®-M0 32-bit microcontroller with 16 KB Flash, 4 KB SRAM (with hardware parity), 48 MHz max CPU frequency, and integrated peripherals including a 12-bit ADC, nine timers (including advanced-control TIM1), I²C, USART, and SPI. It operates from 2.0–3.6 V and supports -40 to +105°C industrial temperature range-used in compact motor control and smart sensor nodes where low pin count and robust analog integration are critical.

For engineers reviewing the STM32F031F4P6 datasheet, STM32F031F4P6 pinout, STM32F031F4P6 application, or STM32F031F4P6 equivalent, key selection considerations include its TSSOP20 package footprint, 5 V-tolerant I/Os on up to 26 pins, 1.0 µs ADC conversion time, programmable voltage detector (PVD), and SWD debug interface compatibility with ST-LINK tools.

Technical Context

The STM32F031F4P6 implements a single-cycle ARM Cortex-M0 core with Thumb-2 instruction set, supporting deterministic real-time execution at up to 48 MHz via internal 8 MHz RC oscillator with x6 PLL or external 4–32 MHz crystal. Its memory subsystem includes 16 KB of Flash with error correction and 4 KB of SRAM with hardware parity checking for functional safety compliance.

Peripheral integration centers on mixed-signal control: the 12-bit ADC supports up to 10 channels with 0–3.6 V input range and separate VDDA supply; TIM1 provides 6-channel PWM with deadtime insertion and emergency stop-enabling brushless DC motor commutation; and the I²C interface supports Fast Mode Plus (1 Mbit/s) with 20 mA current sink for robust bus driving.

Key Specifications

Pinout & Package

TSSOP20 package (6.5 × 4.4 mm, 0.65 mm pitch) with exposed thermal pad; RoHS-compliant ECOPACK®2 construction. Pinout validated per STMicroelectronics DocID025743 Rev 6, Figure 8 and Table 11.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with STM32F031F4P6, the STM32F030F4P6 sacrifices safety-critical features for lower BOM cost, while the STM32G031F6P6 trades mature motor control IP for raw speed and memory-making the F031F4P6 optimal for cost-sensitive, safety-aware embedded control where proven peripheral integration matters most.

Availability

STM32F031F4P6 is available at Aetrix Electronics and suitable for industrial motor control, smart building sensors, and automotive body electronics requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for STM32F031F4P6 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power devices, sensors, and analog ICs for industrial, automotive, and consumer markets.

The STM32F0 series targets cost-sensitive, resource-constrained embedded applications demanding high integration, low power, and industrial-grade reliability-optimized for motor control, human-machine interface, and smart sensing endpoints.

FAQ

What is the maximum operating frequency and how is it achieved?

The STM32F031F4P6 achieves 48 MHz maximum CPU frequency using its internal 8 MHz RC oscillator with a programmable x6 PLL multiplier, or by feeding an external 4–32 MHz crystal into the HSE input. The PLL output feeds the system clock directly, enabling deterministic real-time execution without external clock components in most designs.

Does this MCU support hardware CRC calculation?

Yes, the STM32F031F4P6 includes a dedicated CRC calculation unit compliant with IEEE 802.3 (32-bit polynomial 0x04C11DB7). It operates independently of the CPU and supports byte, halfword, and word data writes-commonly used for firmware image integrity checks and communication packet validation.

Can the ADC measure voltages above VDDA?

No. The ADC input voltage range is strictly limited to 0 V to VDDA (2.4–3.6 V). Exceeding VDDA risks damage and invalid conversion results. For signals beyond this range, external resistive dividers or op-amp scaling circuits are required to scale inputs into the valid ADC window.

Is the TSSOP20 package lead-free and RoHS-compliant?

Yes, the STM32F031F4P6 in TSSOP20 packaging uses ECOPACK®2 construction, which meets RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. Lead-free soldering profiles follow JEDEC J-STD-020D.2, with peak reflow temperature of 260°C for 30 seconds maximum.