{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L031G6U7STR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L031G6U7STR","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L031G6U7STR","factsUrl":"https://icboms.com/api/mcp/products/STM32L031G6U7STR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32L031G6U7STR, STM32L0 series, 32-bit ARM Cortex-M0+ MCU, 32 MHz, 32 KB Flash, 8K x 8 RAM, 1K x 8 EEPROM, 1.8V–3.6V, -40°C to 105°C, 28-UFQFPN (4x4 mm), Tape & Reel.","salesMarkdown":"## 32 MHz Cortex-M0+ with 32 KB Flash — sizing the firmware budget The 32 MHz core speed is the performance ceiling for this part. For a battery-powered sensor that wakes, reads a sensor, logs data, and goes back to sleep, 32 MHz is more than adequate — the M0+ pipeline is single-issue, so the real throughput is about 0.95 DMIPS/MHz. If your BOM needs a larger memory map, the STM32L0 family offers 64 KB and 128 KB Flash variants in the same 28-UFQFPN footprint. ## Industrial temperature grade — where this MCU fits The 105°C upper limit is a step above the standard 85°C commercial grade, so it handles self-heating in a sealed box or summer rooftop exposure without derating. ## Peripherals and I/O — what is on the 28-pin package The 28-pin UFQFPN has an exposed pad for thermal relief — ensure the PCB has a matching thermal land and via stitch if the MCU drives continuous loads.","metaTitle":"STM32L031G6U7STR STM32L0 ARM Cortex-M0+ MCU, 32 MHz","metaDescription":"STMicroelectronics STM32L031G6U7STR 32-bit ARM Cortex-M0+ MCU, 32 MHz, 32 KB Flash, 8K x 8 RAM, 1K x 8 EEPROM, -40°C to 105°C, 28-UFQFPN.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"STMicroelectronics","Speed":"32MHz","Series":"STM32L0","Package":"Tape & Reel (TR)","RAM Size":"8K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"1K x 8","Peripherals":"Brown-out Detect/Reset, DMA, POR, PWM, WDT","Connectivity":"I²C, IrDA, LINbus, SPI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"21","Core Processor":"ARM® Cortex®-M0+","Package / Case":"28-UFQFN","Product Status":"Active","Data Converters":"A/D 10x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32L031","Program Memory Size":"32KB (32K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~105°C(TA)","Supplier Device Package":"28-UFQFPN (4x4)","Voltage - Supply (Vcc/Vdd)":"1.8V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.8599","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/3269b6941a20676907c1e15f5d121af6.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to STM32L031G6U7STR?","answer":"Within the STM32L0 series, the STM32L031G6U7 (non-tape-and-reel variant) is the same die in the same 28-UFQFPN package, differing only in shipping medium. For higher Flash or RAM density, pin-compatible options exist in the STM32L031x6 and STM32L051x8 families — verify the specific order code against your firmware memory map."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L031G6U7STR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L031G6U7STR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T13:21:35.090Z","lastPublished":"2026-07-16T13:21:35.090Z","indexable":true}}