{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L4S9VIT6","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L4S9VIT6","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L4S9VIT6","factsUrl":"https://icboms.com/api/mcp/products/STM32L4S9VIT6","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32L4S9VIT6, ARM Cortex-M4 32-bit MCU, 120 MHz, 2 MB Flash, 640 KB RAM, 100-LQFP, -40 to 85°C","salesMarkdown":"## What this chip does in the assembly The STM32L4S9VIT6 is an STMicroelectronics ARM Cortex-M4 MCU — the high-density member of the STM32L4S series, packing 2 MB of Flash and 640 KB of SRAM for firmware-heavy applications like connected industrial sensors, human-machine interfaces, and audio processing nodes. The 120 MHz core clock lets the Cortex-M4 handle real-time control loops and DSP math without an external coprocessor. The 640 KB RAM gives headroom for multiple buffered sensor streams and a FreeRTOS heap. ## Package and temperature grade for the environment Housed in a 100-LQFP (14x14 mm) with 77 I/O lines, this is a standard surface-mount footprint for two-layer or four-layer boards. STMicroelectronics lists the STM32L4S9VIT6 as active (current production). No last-time-buy or end-of-life notice has been issued.","metaTitle":"STM32L4S9VIT6 STMicroelectronics ARM Cortex-M4 MCU, 120 MHz","metaDescription":"STMicroelectronics STM32L4S9VIT6 ARM Cortex-M4 MCU, 120 MHz, 2 MB Flash, 640 KB RAM, 100-LQFP.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"STMicroelectronics","Speed":"120MHz","Series":"STM32L4S","Package":"Tray","RAM Size":"640K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, LCD, POR, PWM, WDT","Connectivity":"CANbus, EBI/EMI, I²C, IrDA, LINbus, MMC/SD, SAI, SPI, UART/USART, USB OTG","Mounting Type":"Surface Mount","Number of I/O":"77","Core Processor":"ARM® Cortex®-M4","Package / Case":"100-LQFP","Product Status":"Active","Data Converters":"A/D 14x12b; D/A 2x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32L4S9","Program Memory Size":"2MB (2M x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"100-LQFP (14x14)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$14.7514","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/801901ac73e8271122e5857a8f5a4736.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the maximum clock speed of STM32L4S9VIT6?","answer":"The maximum clock speed is 120 MHz, driven by the internal oscillator or an external clock source."},{"question":"Does STM32L4S9VIT6 have a replacement or equivalent?","answer":"No official replacement or direct second-source equivalent is listed by STMicroelectronics. The part remains active, so no substitute is required for new designs. For dual-sourcing, consider a pin-compatible STM32L4S9VI variant (same package and memory) if available."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L4S9VIT6","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L4S9VIT6 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T12:44:38.000Z","lastPublished":"2026-07-16T12:44:38.000Z","indexable":true}}