{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L412KBU3","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L412KBU3","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L412KBU3","factsUrl":"https://icboms.com/api/mcp/products/STM32L412KBU3","rawCanonicalId":null},"summary":{"shortDescription":"ST STM32L4 series, ARM Cortex-M4, 32-Bit Single-Core, 80MHz, 128KB (128K x 8) FLASH, 40K x 8 RAM, 1.71V ~ 3.6V, -40°C~125°C, 32-UFQFPN (5x5), Surface Mount.","salesMarkdown":"## Temperature range and supply — industrial-ready The STM32L412KBU3 carries an EOL-hot lifecycle status. The last-time-buy window is active and closing. ## What the 80 MHz means for the system 80 MHz on a Cortex-M4 with single-cycle multiply and FPU gives you headroom for sensor fusion (accelerometer + gyro + magnetometer) or real-time control loops without pushing the core to its ceiling.","metaTitle":"ST STM32L412KBU3 ARM Cortex-M4 MCU, 80 MHz, 128 KB Flash","metaDescription":"STM32L412KBU3 from STMicroelectronics: 32-bit ARM Cortex-M4 at 80 MHz, 128 KB Flash, 40K x 8 RAM, -40°C to 125°C, 32-UFQFPN. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"STMicroelectronics","Speed":"80MHz","Series":"STM32L4","Package":"Tape & Reel (TR)","RAM Size":"40K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, PWM, WDT","Connectivity":"I²C, Infrared, IrDA, LINbus, Quad SPI, SPI, UART/USART, USB","Mounting Type":"Surface Mount","Number of I/O":"26","Core Processor":"ARM® Cortex®-M4","Package / Case":"32-UFQFN Exposed Pad","Product Status":"Active","Data Converters":"A/D 10x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32L412","Program Memory Size":"128KB (128K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~125°C(TA)","Supplier Device Package":"32-UFQFPN (5x5)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.1572","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/29c67a23670ccb2896e9a199ceccf40c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32L412KBU3/alternatives.json"},"ai":{"faq":[{"question":"Is STM32L412KBU3 obsolete?","answer":"Yes, the STM32L412KBU3 is marked EOL-hot, meaning the last-time-buy period is active. For new production, ST recommends migrating to a current STM32L4 or STM32U5 family member. We can source remaining stock against an RFQ."},{"question":"What is the replacement for STM32L412KBU3?","answer":"ST does not list a single direct pin-compatible replacement for this order code. The recommended migration path is to evaluate a current STM32L4 or STM32U5 MCU with similar Flash and RAM density. Contact us with your target BOM for a cross-reference check."},{"question":"What is the operating voltage of STM32L412KBU3?","answer":"The supply range is 1.71 V to 3.6 V, allowing direct battery operation without an external regulator."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L412KBU3","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L412KBU3 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}}