{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32F031G6U6TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32F031G6U6TR","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32F031G6U6TR","factsUrl":"https://icboms.com/api/mcp/products/STM32F031G6U6TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32F031G6U6TR, 32-bit ARM Cortex-M0 MCU, 48MHz, 32KB Flash, 4KB SRAM, 23 I/O, 28-UFQFPN (4x4mm), -40°C to 85°C, 2V-3.6V supply.","salesMarkdown":"The 4 KB SRAM (organized as 4K x 8) limits buffer-heavy applications like USB or large frame graphics; for I²C or SPI data logging it is adequate. If your compiled binary plus constant data exceeds 32 KB, step up to the 64 KB Flash variants in the same STM32F031 family (pin-compatible across the 28-pin UFQFPN package). ## 28-UFQFPN exposed pad — layout and thermal notes The 0.5 mm pitch demands careful solder paste stencil design; a 0.25 mm aperture works for most assembly houses. Keep the decoupling capacitor (100 nF ceramic) within 2 mm of the VDD/VSS pair, and route the SWD signals (SWDIO, SWCLK) to a header for debug access. ST lists the STM32F031G6U6TR as Active. The ROHS3 compliance covers current EU and China RoHS requirements. If you are dual-sourcing, the STM32F031G4U6TR (16 KB Flash) is a drop-in replacement with the same package and pinout — just a smaller Flash size.","metaTitle":"STM32F031G6U6TR 32-bit ARM Cortex-M0 MCU, 48MHz, 32KB Flash","metaDescription":"STMicroelectronics STM32F031G6U6TR 32-bit ARM Cortex-M0 MCU, 48MHz core, 32KB Flash, 4KB SRAM, 23 I/O, 28-UFQFPN, -40°C to 85°C.","metaKeywords":null},"attributes":{"series":"STM32F0","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"STMicroelectronics","Speed":"48MHz","Series":"STM32F0","Package":"Tape & Reel (TR) Cut Tape (CT)","RAM Size":"4K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"DMA, I²S, POR, PWM, WDT","Connectivity":"I²C, IrDA, LINbus, SPI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"23","Core Processor":"ARM® Cortex®-M0","Package / Case":"28-UFQFN Exposed Pad","Product Status":"Active","Data Converters":"A/D 13x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32F031","Program Memory Size":"32KB (32K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"28-UFQFPN (4x4)","Voltage - Supply (Vcc/Vdd)":"2V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.9400","priceTiers":[{"qty":1,"price":"$2.94000","currency":"USD"},{"qty":10,"price":"$2.64300","currency":"USD"},{"qty":25,"price":"$2.49320","currency":"USD"},{"qty":100,"price":"$2.12420","currency":"USD"},{"qty":250,"price":"$1.99456","currency":"USD"},{"qty":500,"price":"$1.74522","currency":"USD"},{"qty":1000,"price":"$1.44605","currency":"USD"},{"qty":3000,"price":"$1.34632","currency":"USD"},{"qty":6000,"price":"$1.29646","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/7127f169a82fed95ea2bf9d385a9c5f9.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32F031G6U6TR/alternatives.json"},"ai":{"faq":[{"question":"What is the lifecycle status of STM32F031G6U6TR?","answer":"No discontinuation or last-time-buy notice has been issued, so it remains suitable for new production builds and ongoing designs."},{"question":"Can STM32F031G6U6TR be used as a replacement for STM32F031G4U6TR?","answer":"Yes, the STM32F031G6U6TR is a direct pin-compatible upgrade from the STM32F031G4U6TR. Both share the same 28-UFQFPN package, supply range, and peripheral set. The difference is Flash size: the G6 variant has 32 KB versus 16 KB on the G4, so firmware images that fit in 16 KB will run unmodified on the G6."},{"question":"Can STM32F031G6U6TR be programmed with ST-Link?","answer":"Yes, the STM32F031G6U6TR uses the standard SWD (Serial Wire Debug) interface supported by all ST-Link programmers (V2, V3, and the integrated debugger on STM32 Nucleo boards). Connect SWDIO, SWCLK, and GND; the target powers from its own supply. The internal oscillator is enabled by default, so no external clock is needed for initial programming."},{"question":"What is the difference between STM32F031G6U6TR and STM32F031G6U6?","answer":"The 'TR' suffix indicates Tape & Reel packaging, while the base STM32F031G6U6 ships in tray or tube. The silicon, package, and electrical specifications are identical. The TR variant is intended for automated pick-and-place assembly lines; the tray variant is more convenient for prototyping and small-batch builds."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32F031G6U6TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32F031G6U6TR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}