{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L031G6U6TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L031G6U6TR","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L031G6U6TR","factsUrl":"https://icboms.com/api/mcp/products/STM32L031G6U6TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32L0 series STM32L031G6U6TR, ARM Cortex-M0+, 32-Bit, 32MHz, 32KB Flash, 8K x 8 RAM, 1K x 8 EEPROM, 28-UFQFPN, -40°C to 85°C.","salesMarkdown":"The STM32L031G6U6TR: The 28-pin UFQFPN package measures 4x4 mm, making it a fit for space-constrained, battery-operated designs like sensor nodes, portable medical devices, and industrial IoT endpoints where every milliwatt and square millimeter counts. The 32 KB Flash is the firmware budget; the 8 KB RAM handles stack, heap, and data buffers. The 1 KB EEPROM saves calibration constants or configuration data without wearing the Flash — useful for field-updatable parameters. The 21 GPIOs and 10-channel 12-bit ADC give enough I/O for a handful of sensors and a serial display or keypad. Built-in brown-out detect, power-on reset, and a watchdog timer reduce external supervisory ICs. The DMA engine can move ADC results to RAM without CPU intervention, saving power in data-logging applications. For a production BOM, this means no immediate LTB risk and continued manufacturer support. ## 32 MHz Cortex-M0+ — what the core speed means for your design The 32 MHz ceiling is the Cortex-M0+ sweet spot for ultra-low-power operation. At this clock the core draws roughly a third of the current of a Cortex-M3 running at the same speed, which directly extends battery life in duty-cycled applications. The trade-off is that the M0+ lacks a hardware multiplier (it does integer multiply in software) and has no MPU — fine for simple control loops and sensor fusion, but not for heavy DSP or multi-threaded RTOS with memory protection.","metaTitle":"STM32L031G6U6TR STMicroelectronics MCU, ARM Cortex-M0+","metaDescription":"STMicroelectronics STM32L031G6U6TR 32-bit ARM Cortex-M0+ MCU, 32 MHz, 32 KB Flash, 8 KB RAM, 1 KB EEPROM, 28-UFQFPN. Active lifecycle, industrial temp.","metaKeywords":null},"attributes":{"series":"STM32L0","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"STMicroelectronics","Speed":"32MHz","Series":"STM32L0","Package":"Tape & Reel (TR) Cut Tape (CT)","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 ~ 85°C (TA)","Supplier Device Package":"28-UFQFPN (4x4)","Voltage - Supply (Vcc/Vdd)":"1.8V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.7400","priceTiers":[{"qty":1,"price":"$2.74000","currency":"USD"},{"qty":10,"price":"$2.45800","currency":"USD"},{"qty":25,"price":"$2.32400","currency":"USD"},{"qty":100,"price":"$2.01400","currency":"USD"},{"qty":250,"price":"$1.91072","currency":"USD"},{"qty":500,"price":"$1.71450","currency":"USD"},{"qty":1000,"price":"$1.44596","currency":"USD"},{"qty":3000,"price":"$1.37366","currency":"USD"},{"qty":6000,"price":"$1.32202","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/3269b6941a20676907c1e15f5d121af6.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32L031G6U6TR/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L031G6U6TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L031G6U6TR 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}}