{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L031K4U6","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L031K4U6","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L031K4U6","factsUrl":"https://icboms.com/api/mcp/products/STM32L031K4U6","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32L0 series 32-bit ARM Cortex-M0+ MCU, order code STM32L031K4U6, 32 MHz core, 16 KB Flash, 8K x 8 SRAM, 1K x 8 EEPROM, 27 I/O, 10-channel 12-bit ADC, -40°C to 85°C, 32-UFQFPN (5x5) package.","salesMarkdown":"## 32 MHz Cortex-M0+ — what it means for the low-power BOM The STM32L031K4U6 is a 32-bit ARM Cortex-M0+ MCU from ST's STM32L0 series, clocked at 32 MHz. It carries 16 KB Flash and 8K x 8 SRAM, plus 1K x 8 EEPROM. ## Active production — no LTB pressure on this line The STM32L031K4U6 is listed as Active in production status. No end-of-life notice or last-time-buy window is in effect. For a new design or a BOM freeze, this part carries no near-term obsolescence risk. Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing confirmed at quote time.","metaTitle":"ST STM32L031K4U6 ARM Cortex-M0+ MCU, 32 MHz, 16 KB Flash","metaDescription":"STMicroelectronics STM32L031K4U6 32-bit MCU, ARM Cortex-M0+ core, 32 MHz speed, 16 KB Flash, 8K x 8 RAM, 1K x 8 EEPROM, -40 to 85°C, 32-UFQFPN. Active, sourced to order.","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":"Tray","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":"27","Core Processor":"ARM® Cortex®-M0+","Package / Case":"32-UFQFN Exposed Pad","Product Status":"Active","Data Converters":"A/D 10x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32L031","Program Memory Size":"16KB (16K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"32-UFQFPN (5x5)","Voltage - Supply (Vcc/Vdd)":"1.8V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.4929","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/9da9efc4233dfdd482528b8b281fc32a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32L031K4U6/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to STM32L031K4U6?","answer":"The STM32L031K6U6 is pin-compatible in the same 32-UFQFPN package, doubling Flash to 32 KB while keeping the same supply range and temperature grade."},{"question":"What is STM32L031K4U6's maximum operating temperature?","answer":"The operating temperature range is -40°C to 85°C (TA), covering industrial and outdoor telecom environments."},{"question":"What is the core speed of STM32L031K4U6?","answer":"The ARM Cortex-M0+ core runs at 32 MHz, the maximum clock for this ultra-low-power STM32L0 series part."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L031K4U6","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L031K4U6 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-11T18:12:59.411Z","lastPublished":"2026-07-11T18:12:59.411Z","indexable":true}}