{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L476QEI6TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L476QEI6TR","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L476QEI6TR","factsUrl":"https://icboms.com/api/mcp/products/STM32L476QEI6TR","rawCanonicalId":null},"summary":{"shortDescription":"ST STM32L4 series, ARM Cortex-M4, 32-bit, 80MHz, 512KB Flash, 128K x 8 RAM, 132-UFBGA, -40°C to 85°C.","salesMarkdown":"The STM32L476QEI6TR is a 32-bit ARM Cortex-M4 MCU from STMicroelectronics' STM32L4 ultra-low-power series, clocked at 80 MHz with 512 KB of Flash program memory and 128 KB of RAM. It is designed for energy-conscious applications that still need signal-processing throughput — think battery-operated instrumentation, field sensors, and portable medical devices where every microamp matters but you cannot give up DSP or FPU acceleration. The 80 MHz Cortex-M4 with FPU handles real-time sensor fusion or audio processing without offloading to a peripheral. The 512 KB Flash and 128 KB RAM support moderate firmware images and local data logging. The 109 GPIOs in the 132-UFBGA package give enough pins to drive a small TFT display, read a keypad, and talk to a dozen sensors without a port expander. The integrated LCD controller drives segmented glass displays directly — a common requirement in handheld meters and panel indicators. ## Supply range and power management Multiple low-power modes — stop, standby, and shutdown — are standard for the STM32L4 family, with typical current consumption in the sub-µA range during retention. The internal oscillator saves an external crystal for applications that can tolerate the accuracy; for CAN or USB timing, an external crystal is still recommended. The lifecycle status on this part is marked EOL hot, meaning ST has issued an end-of-life notice and the last-time-buy window is active. The base product number STM32L476 covers a wide density and package range.","metaTitle":"ST STM32L476QEI6TR ARM Cortex-M4 MCU, 80MHz, 512KB Flash","metaDescription":"STMicroelectronics STM32L476QEI6TR 32-bit MCU with 80MHz ARM Cortex-M4 core, 512KB Flash, 128KB RAM, 132-UFBGA. Sourced to order against RFQ.","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":"Tape & Reel (TR)","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":"$6.0240","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/e4f865ae4830d5c8c1c745b3072c2e8e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32L476QEI6TR/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to STM32L476QEI6TR?","answer":"Pin-compatible alternatives within the STM32L4 series include the STM32L496 and STM32L4R5 families in the same 132-UFBGA package, offering higher Flash/RAM densities. Confirm exact pin mapping against your PCB layout before substituting."},{"question":"What is the operating temperature range for STM32L476QEI6TR?","answer":"Rated for -40°C to 85°C ambient, covering industrial and outdoor telecom enclosures but not extended automotive under-hood environments."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L476QEI6TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L476QEI6TR 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}}