{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L476QEI6","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L476QEI6","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L476QEI6","factsUrl":"https://icboms.com/api/mcp/products/STM32L476QEI6","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32L4 series STM32L476QEI6, ARM Cortex-M4 32-Bit MCU, 80 MHz, 512KB Flash, 128K x 8 RAM, 109 I/O, 132-UFBGA, -40°C to 85°C.","salesMarkdown":"The STM32L476QEI6: It targets applications where a balance of processing throughput and energy efficiency is required — think battery-operated industrial sensors, portable medical monitors, and HMI panels that need a rich peripheral set without a separate power-management IC. With 109 I/O lines and a connectivity list that includes USB OTG, CANbus, QSPI, SAI, and multiple UART/I²C/SPI interfaces, this part can serve as the central controller in a mixed-signal system. The integrated LCD controller and DMA engine offload the core for display updates and data movement. Packaged in a 132-ball UFBGA (7x7 mm). For dual-sourcing or supply resilience, the STM32L151CBU6A (Cortex-M3, 32 MHz, 37 I/O) is a lower-density sibling but not a pin-compatible drop-in — the L4 series offers higher performance and more peripherals.","metaTitle":"STM32L476QEI6 STM32L4 MCU, ARM Cortex-M4, 80 MHz","metaDescription":"STMicroelectronics STM32L476QEI6 32-bit MCU with ARM Cortex-M4 core at 80 MHz, 512KB Flash, 128KB SRAM, 109 I/O, USB OTG, CAN, QSPI.","metaKeywords":null},"attributes":{"series":"STM32L4","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"STMicroelectronics","Speed":"80MHz","Series":"STM32L4","Package":"Tray","RAM Size":"128K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, LCD, PWM, WDT","Connectivity":"CANbus, EBI/EMI, I²C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, SWPMI, UART/USART, USB OTG","Mounting Type":"Surface Mount","Number of I/O":"109","Core Processor":"ARM® Cortex®-M4","Package / Case":"132-UFBGA","Product Status":"Active","Data Converters":"A/D 19x12b; D/A 2x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32L476","Program Memory Size":"512KB (512K 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":"$11.0300","priceTiers":[{"qty":1,"price":"$11.03000","currency":"USD"},{"qty":10,"price":"$9.96300","currency":"USD"},{"qty":25,"price":"$9.49960","currency":"USD"},{"qty":80,"price":"$8.24825","currency":"USD"},{"qty":230,"price":"$7.87761","currency":"USD"},{"qty":440,"price":"$7.18252","currency":"USD"},{"qty":945,"price":"$6.25574","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/e4f865ae4830d5c8c1c745b3072c2e8e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32L476QEI6/alternatives.json"},"ai":{"faq":[{"question":"What is the core processor of STM32L476QEI6?","answer":"It uses an ARM Cortex-M4 core running at 80 MHz, with a 32-bit single-core architecture."},{"question":"Does STM32L476QEI6 support USB OTG?","answer":"Yes, USB OTG is listed in the connectivity set. External components such as a USB connector, series termination resistors, and ESD protection are typically required per the reference design — the evidence does not detail the specific bill of materials."},{"question":"Are there any equivalent or direct replacements for STM32L476QEI6?","answer":"The STM32L151CBU6A is a lower-performance sibling from the STM32L1 series (Cortex-M3, 32 MHz, 37 I/O) but is not pin-compatible or a direct functional replacement."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L476QEI6","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L476QEI6 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}}