{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L4S5QII6","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L4S5QII6","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L4S5QII6","factsUrl":"https://icboms.com/api/mcp/products/STM32L4S5QII6","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32L4S series, STM32L4S5QII6, 32-Bit Single-Core ARM Cortex-M4 MCU, 120 MHz, 2 MB FLASH, 640K x 8 RAM, 110 I/O, CANbus, USB OTG, 132-UFBGA, -40°C to 85°C.","salesMarkdown":"Internal oscillator and brown-out detect/reset are integrated, reducing external BOM count. ## 132-ball UFBGA — layout and rework notes The 132-UFBGA package measures 7 mm x 7 mm with a 0.5 mm ball pitch. Surface-mount assembly requires a solder-paste stencil aligned to the ball pattern; X-ray inspection is recommended after reflow to check for head-in-pillow defects. Decouple the Vcc supply with a 100 nF capacitor per supply pin pair, placed as close to the balls as the fan-out vias allow.","metaTitle":"STM32L4S5QII6 STM32 MCU, ARM Cortex-M4, 120 MHz, 2 MB Flash","metaDescription":"STM32L4S5QII6 32-bit MCU with ARM Cortex-M4 at 120 MHz, 2 MB Flash, 640 KB SRAM, USB OTG, CAN, 110 I/O, 132-UFBGA. Active lifecycle, ROHS3.","metaKeywords":null},"attributes":{"series":"STM32L4S","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","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, 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":"110","Core Processor":"ARM® Cortex®-M4","Package / Case":"132-UFBGA","Product Status":"Active","Data Converters":"A/D 16x12b; D/A 2x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32L4S5","Program Memory Size":"2MB (2M x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"132-UFBGA (7x7)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$16.6700","priceTiers":[{"qty":1,"price":"$16.67000","currency":"USD"},{"qty":10,"price":"$15.31800","currency":"USD"},{"qty":25,"price":"$14.68280","currency":"USD"},{"qty":80,"price":"$12.93675","currency":"USD"},{"qty":416,"price":"$12.30185","currency":"USD"},{"qty":832,"price":"$11.50819","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/801901ac73e8271122e5857a8f5a4736.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32L4S5QII6/alternatives.json"},"ai":{"faq":[{"question":"Does STM32L4S5QII6 support USB OTG?","answer":"Yes, the connectivity block includes USB OTG alongside CANbus, I²C, SPI, UART/USART, SAI, and an EBI/EMI interface."},{"question":"What is the maximum clock speed of STM32L4S5QII6?","answer":"The core processor runs at 120 MHz, which is the maximum clock speed for this ARM Cortex-M4 device."},{"question":"What is the equivalent of STM32L4S5QII6?","answer":"The STM32L151CBU6A is a lower-performance ARM Cortex-M3 sibling in the STM32L1 family, running at 32 MHz with 37 I/O. It is not a pin-compatible second source — the STM32L4S5QII6 offers a 120 MHz Cortex-M4 core, 2 MB Flash, 640 KB SRAM, and 110 I/O in a 132-UFBGA package, which is a different performance and footprint tier."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L4S5QII6","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L4S5QII6 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}