{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L476ZGT3","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L476ZGT3","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L476ZGT3","factsUrl":"https://icboms.com/api/mcp/products/STM32L476ZGT3","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32L4 series, ARM Cortex-M4 32-bit MCU, 80MHz, 1MB Flash, 128K x 8 RAM, CANbus/EBI/EMI/I²C/IrDA/LIN/MMC/SD/QSPI/SAI/SPI/SWPMI/UART/USART/USB OTG, 114 I/O, 144-LQFP, -40 to 125°C.","salesMarkdown":"The STM32L476ZGT3: The 144-LQFP package (20x20 mm body) exposes all 114 I/O on the perimeter. ## 80 MHz Cortex-M4 with FPU — what the core speed means The 80 MHz clock rate on a single-core Cortex-M4 with single-precision FPU handles real-time control loops and moderate DSP without an external coprocessor. The 1 MB Flash (1M x 8) and 128 KB RAM (128K x 8) give enough room for a full-featured firmware image with a real-time OS, a TCP/IP stack, and a GUI library, plus a generous OTA staging area. The RAM is sufficient for double-buffered display frames at moderate resolutions or for holding a few seconds of audio samples. If your application needs more RAM for data logging or large look-up tables, check whether the external memory interface (EBI/EMI) is populated on your board — this MCU supports parallel SRAM/NOR/PSRAM and NAND Flash through the flexible memory controller. The STM32L476ZGT3 includes a broad set of serial interfaces: CANbus, multiple I²C and SPI, UART/USART with IrDA and LIN support, USB OTG, QSPI for external Flash, and SAI for audio. The LCD controller can drive a segment LCD directly, which is useful for instrument panels and metering applications. The brown-out detect and reset, DMA, PWM timers, and watchdog peripherals round out the set for autonomous operation.","metaTitle":"STM32L476ZGT3 ARM Cortex-M4 MCU, 80MHz, 1MB Flash, 144-LQFP","metaDescription":"STMicroelectronics STM32L476ZGT3 32-bit MCU, 80MHz core, 1MB Flash, 128KB RAM, 114 I/O, -40 to 125°C, 144-LQFP.","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":"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":"114","Core Processor":"ARM® Cortex®-M4","Package / Case":"144-LQFP","Product Status":"Active","Data Converters":"A/D 24x12b; D/A 2x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32L476","Program Memory Size":"1MB (1M x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~125°C(TA)","Supplier Device Package":"144-LQFP (20x20)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$17.4600","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/e4f865ae4830d5c8c1c745b3072c2e8e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32L476ZGT3/alternatives.json"},"ai":{"faq":[{"question":"Is STM32L476ZGT3 pin-compatible with the STM32L476RGT6?","answer":"No. The STM32L476ZGT3 comes in a 144-LQFP package, while the STM32L476RGT6 is in a 64-LQFP. They share the same core and peripheral IP but have different pin counts and footprints — they are not drop-in replacements."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L476ZGT3","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L476ZGT3 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:03:28.771Z","lastPublished":"2026-07-22T18:03:28.771Z","indexable":true}}