STMicroelectronics STM32F031F6P7TR

Overview

STM32F031F6P7TR from STMicroelectronics is a 32-bit ARM Cortex-M0 microcontroller with 32 KB Flash, 4 KB SRAM (HW parity), 48 MHz max CPU frequency, 12-bit 1.0 µs ADC (10-channel), and integrated peripherals including I²C (Fast Mode Plus), USART (LIN/IrDA/ISO7816), SPI (18 Mbit/s), RTC, and nine timers - deployed in industrial sensor nodes and smart metering front-ends.

For engineers reviewing the STM32F031F6P7TR datasheet, STM32F031F6P7TR pinout, STM32F031F6P7TR application, or STM32F031F6P7TR equivalent, key selection criteria include 5 V-tolerant I/O count (26 pins), extended temperature range (–40 to +105°C), ECOPACK®2 compliance, and TSSOP20 package footprint compatibility with space-constrained PCB layouts.

Technical Context

The device implements a single-cycle ARM Cortex-M0 core with Thumb-2 instruction set, supporting deterministic real-time execution up to 48 MHz. It integrates a programmable voltage detector (PVD), CRC calculation unit, and dual power domains (VDD/VDDA) enabling independent analog supply regulation from 2.4–3.6 V.

Clock architecture includes four sources: 4–32 MHz HSE crystal oscillator, 32 kHz LSE for RTC calibration, 8 MHz HSI with x6 PLL, and 40 kHz LSI for watchdog timing - all managed via RCC registers with automatic clock switching and fail-safe reset on oscillator failure.

Key Specifications

Pinout & Package

TSSOP20 package (6.5 × 4.4 mm, 0.65 mm pitch) with exposed thermal pad; RoHS-compliant, ECOPACK®2 certified.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F031F6P7TR, STM32F030F4P6 reduces feature set and qualification scope, while STM32F042F4P6 extends connectivity at identical package size - making the F031 optimal for industrial timing-critical, battery-aware designs requiring proven analog integration.

Availability

STM32F031F6P7TR is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meters, automotive body control modules, and home appliance motor drives requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for STM32F031F6P7TR 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 requiring high integration, low power, and industrial-grade reliability - with the F031 variant optimized for analog-rich, timing-critical control tasks in compact packages.

FAQ

What is the maximum operating frequency of the STM32F031F6P7TR?

The STM32F031F6P7TR operates at a maximum CPU frequency of 48 MHz, achieved using the internal 8 MHz HSI oscillator with x6 PLL multiplication or an external 4–32 MHz crystal. This frequency is fully supported across the entire –40 to +105°C temperature range and 2.0–3.6 V supply voltage window, as verified in Section 6.3.9 of the official datasheet.

Does the STM32F031F6P7TR support hardware CRC calculation?

Yes, the STM32F031F6P7TR includes a dedicated cyclic redundancy check (CRC) calculation unit compliant with IEEE-802.3, capable of computing 32-bit CRC over arbitrary data lengths in a single cycle. It supports programmable polynomial configuration and is accessible via APB1 bus, enabling fast firmware image integrity verification during boot or OTA updates.

How many I/O pins on the STM32F031F6P7TR are 5 V tolerant?

Exactly 26 I/O pins on the STM32F031F6P7TR are 5 V tolerant, as confirmed in Section 3.7 of the datasheet and Table 11 (Pin Definitions). These include PA0–PA9, PA12–PA15, PB0–PB1, PB6–PB10, and PB12–PB15 - allowing direct connection to 5 V peripherals without external level-shifting circuitry.

What debug interface does the STM32F031F6P7TR provide?

The STM32F031F6P7TR supports Serial Wire Debug (SWD) via two dedicated pins: SWDIO (PA13) and SWCLK (PA14). This two-wire interface enables full programming, debugging, and real-time trace capabilities using standard tools like ST-LINK/V2, with no JTAG header required - reducing PCB footprint and test point count.