{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L031E6Y6DTR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L031E6Y6DTR","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L031E6Y6DTR","factsUrl":"https://icboms.com/api/mcp/products/STM32L031E6Y6DTR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32L0 series STM32L031E6Y6DTR, 32-bit ARM Cortex-M0+ MCU, 32MHz, 32KB Flash, 8K x 8 RAM, 1K x 8 EEPROM, 25-WLCSP (2.1x2.49), -40 to 85°C.","salesMarkdown":"The 25-WLCSP package (2.1x2.49 mm) is the smallest footprint in the family, built for space-constrained, battery-operated edge nodes: think sensor pods, wearable health monitors, and single-coin-cell IoT endpoints where every square millimeter of board area is budgeted. ## Peripherals and connectivity — what you get in that tiny package Internal oscillator means you can skip the external crystal on cost-sensitive builds.","metaTitle":"STM32L031E6Y6DTR ARM Cortex-M0+ MCU, 32 MHz, 32 KB Flash","metaDescription":"STMicroelectronics STM32L031E6Y6DTR 32-bit ARM Cortex-M0+ MCU at 32 MHz with 32 KB Flash, 8K x 8 RAM, 1K x 8 EEPROM in 25-WLCSP.","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":"20","Core Processor":"ARM® Cortex®-M0+","Package / Case":"25-UFBGA, WLCSP","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":"25-WLCSP (2.1x2.49)","Voltage - Supply (Vcc/Vdd)":"1.8V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.2916","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/9da9efc4233dfdd482528b8b281fc32a.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to STM32L031E6Y6DTR in this component family?","answer":"Within the STM32L0 series, the STM32L031E6Y6 (non-tape-and-reel suffix) is the same die in the same 25-WLCSP package — functionally identical, just shipped in a different carrier. For higher Flash or RAM you'd step up to the STM32L051 or STM32L071 density variants, but those change the memory map and may shift the pinout in the WLCSP. Stick with the STM32L031 base number for a guaranteed footprint match."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L031E6Y6DTR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L031E6Y6DTR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T12:33:38.436Z","lastPublished":"2026-07-16T12:33:38.436Z","indexable":true}}