{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L431VCI6","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L431VCI6","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L431VCI6","factsUrl":"https://icboms.com/api/mcp/products/STM32L431VCI6","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32L4 series, ARM® Cortex®-M4 32-bit MCU, 80MHz, 256KB Flash, 64K x 8 RAM, 100-UFBGA, -40°C to 85°C.","salesMarkdown":"## STM32L431VCI6 — ultra-low-power Cortex-M4 with 256 KB Flash The STMicroelectronics STM32L431VCI6 is a 32-bit ARM Cortex-M4 MCU from the STM32L4 series, clocked at 80 MHz with 256 KB of Flash program memory and 64 KB of SRAM. The 100-UFBGA package (7x7 mm) keeps board footprint small, while the 1.71 V to 3.6 V supply range and -40°C to 85°C operating temperature make it a fit for industrial sensors, portable instrumentation, and motor-control nodes that need both compute and power efficiency. The 80 MHz core with single-cycle multiply-and-accumulate handles sensor fusion and real-time control loops without an external DSP. For a motor-control or data-acquisition task, that speed leaves headroom for the RTOS scheduler and communications stack alongside the main algorithm. ## 256 KB Flash and 64 KB SRAM — firmware sizing The 64 KB SRAM supports moderate data buffering — think a CANopen object dictionary or a few kilobytes of sensor log — without external memory. ## 100-UFBGA — rework and layout notes 100-UFBGA (7x7 mm) package. Surface mount.","metaTitle":"ST STM32L431VCI6 ARM Cortex-M4 MCU, 80MHz, 256KB Flash, 100-UFBGA","metaDescription":"STMicroelectronics STM32L431VCI6 32-bit MCU with ARM Cortex-M4 core at 80 MHz, 256 KB Flash, 64 KB RAM, 83 I/O, industrial temp range -40 to 85°C, 100-UFBGA package. Active lifecyc","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":"Tray","RAM Size":"64K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, PWM, WDT","Connectivity":"CANbus, I²C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, SWPMI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"83","Core Processor":"ARM® Cortex®-M4","Package / Case":"100-UFBGA","Product Status":"Active","Data Converters":"A/D 16x12b; D/A 2x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32L431","Program Memory Size":"256KB (256K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"100-UFBGA (7x7)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$8.0100","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/5001c15c5be880a0e65d1dfc08e4f0cc.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32L431VCI6/alternatives.json"},"ai":{"faq":[{"question":"What is the exact datasheet for STM32L431VCI6?","answer":"The official STM32L431VCI6 datasheet is available from STMicroelectronics under the base product number STM32L431. It covers the full electrical characteristics, pinout, and peripheral descriptions for the STM32L4x1 family."},{"question":"What is STM32L431VCI6's operating frequency?","answer":"The core runs at 80 MHz, which is the maximum clock for the ARM Cortex-M4 in this device."},{"question":"Is STM32L431VCI6 compatible with STM32L431RCI6?","answer":"The STM32L431RCI6 shares the same Cortex-M4 core, 256 KB Flash, and 64 KB SRAM, but comes in a 64-pin LQFP package with fewer I/O. They are not pin-compatible at the board level due to different package footprints."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L431VCI6","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L431VCI6 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}}