{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L4R5ZIT6P","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L4R5ZIT6P","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L4R5ZIT6P","factsUrl":"https://icboms.com/api/mcp/products/STM32L4R5ZIT6P","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32L4R series, STM32L4R5ZIT6P, ARM Cortex-M4, 32-bit, 120MHz, 2MB Flash, 640K x 8 RAM, 115 I/O, CANbus, EBI/EMI, I²C, IrDA, LINbus, MMC/SD, SAI, SPI, UART/USART, USB OTG, 1.71V-3.6V, -40°C to 85°C, 144-LQFP.","salesMarkdown":"## What this STM32L4R5ZIT6P brings to the BOM The 120 MHz core speed puts this well above the 32 MHz of the STM32L1 series (e.g., STM32L151CBU6A). That roughly 4× clock advantage translates to tighter loop times for sensor fusion, real-time control, or graphics rendering. The Cortex-M4 includes a single-cycle multiply and a hardware FPU, so floating-point math doesn't stall the pipeline. If your firmware does FFTs, IIR filters, or PID loops, this core saves you from offloading to a separate DSP. 2 MB of Flash is enough for a full-featured RTOS, a graphics stack (e.g., TouchGFX or LVGL), and a large application image with room for OTA staging. The 640 KB RAM supports multiple frame buffers at QVGA resolution, deep packet buffers for USB or Ethernet, or complex data structures without external SRAM. No need to add a serial Flash or PSRAM for most designs — the on-chip memory covers it. ## Temperature range and supply — fitting the environment If your design needs to survive cold-crank or brownout conditions, the built-in brown-out detect and POR keep the core from corrupting Flash or RAM. ## Package and footprint — 144-LQFP The 144-LQFP (20x20 mm) is a common fine-pitch QFP with 0.5 mm lead pitch. It's ROHS3 compliant. No last-time-buy risk for the foreseeable future.","metaTitle":"STM32L4R5ZIT6P MCU, ARM Cortex-M4, 120 MHz, 2 MB Flash","metaDescription":"STM32L4R5ZIT6P is an STM32L4R series 32-bit MCU with ARM Cortex-M4 core at 120 MHz, 2 MB Flash, 640 KB RAM, 115 I/O, 1.71-3.6 V supply, -40 to 85°C.","metaKeywords":null},"attributes":{"series":"STM32L4R","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"STMicroelectronics","Speed":"120MHz","Series":"STM32L4R","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":"115","Core Processor":"ARM® Cortex®-M4","Package / Case":"144-LQFP","Product Status":"Active","Data Converters":"A/D 16x12b; D/A 2x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32L4R5","Program Memory Size":"2MB (2M x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"144-LQFP (20x20)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$17.3700","priceTiers":[{"qty":1,"price":"$17.37000","currency":"USD"},{"qty":10,"price":"$15.96300","currency":"USD"},{"qty":25,"price":"$15.30160","currency":"USD"},{"qty":80,"price":"$13.48175","currency":"USD"},{"qty":360,"price":"$12.82011","currency":"USD"},{"qty":720,"price":"$11.99301","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/3911b6923e911f78d930b1bab40f9562.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32L4R5ZIT6P/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L4R5ZIT6P","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L4R5ZIT6P 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}}