{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L4S5AII6","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L4S5AII6","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L4S5AII6","factsUrl":"https://icboms.com/api/mcp/products/STM32L4S5AII6","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32L4S5AII6, ARM Cortex-M4 32-bit MCU, 120MHz, 2MB Flash, 640KB RAM, 169-UFBGA 7x7, -40°C to 85°C, 1.71V to 3.6V supply.","salesMarkdown":"## 120 MHz Cortex-M4 with 2 MB Flash — what the memory and speed mean for the BOM The STM32L4S5AII6: The 2 MB Flash and 640 KB SRAM support OTA firmware updates and hold a VGA frame buffer or multiple protocol stacks. The 120 MHz core handles sensor fusion, audio processing, or real-time control loops. If your system lives inside a weatherproof enclosure or a factory floor panel, this grade is a clean fit. ## Package and footprint — 169-UFBGA 7x7 mm The 169-UFBGA package measures 7x7 mm. The 140 I/O lines require a multi-layer PCB with microvias or blind vias. ## Peripherals and connectivity — what is on-chip The peripheral set includes CANbus, multiple I²C and SPI interfaces, SAI for audio, USB OTG, and an EBI/EMI bus for external memory or parallel peripherals. The 16x12-bit ADC and 2x12-bit DAC cover analog front-end tasks without external converters. ## Lifecycle and sourcing posture ST continues to manufacture this device as part of the current STM32L4S series lineup.","metaTitle":"STM32L4S5AII6 STMicroelectronics ARM Cortex-M4 MCU, 120MHz","metaDescription":"STMicroelectronics STM32L4S5AII6 32-bit ARM Cortex-M4 MCU, 120MHz core, 2MB Flash, 640KB RAM, 169-UFBGA, -40°C to 85°C.","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, 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":"140","Core Processor":"ARM® Cortex®-M4","Package / Case":"169-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":"169-UFBGA (7x7)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$10.4748","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/801901ac73e8271122e5857a8f5a4736.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L4S5AII6","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L4S5AII6 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T13:14:26.401Z","lastPublished":"2026-07-16T13:14:26.401Z","indexable":true}}