{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L4R9VIT6","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L4R9VIT6","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L4R9VIT6","factsUrl":"https://icboms.com/api/mcp/products/STM32L4R9VIT6","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32L4R series, ARM® Cortex®-M4, 32-Bit Single-Core, 120MHz, 2MB (2M x 8) FLASH, 640K x 8 RAM, 100-LQFP, -40°C ~ 85°C.","salesMarkdown":"The STM32L4R9VIT6: ARM Cortex-M4 core at 120 MHz, 2 MB Flash, 640 KB SRAM, 77 I/O, 100-LQFP. ST lists the STM32L4R9VIT6 as Active. The ROHS3 compliance is current — no exemption expiry to track. ## 640 KB SRAM and 2 MB Flash — sizing the memory budget 2 MB Flash and 640 KB SRAM on-chip. EBI/EMI interface supports external memory expansion. ## Connectivity and analog — one chip covers the system bus The peripheral set includes CAN for industrial/automotive networks, USB OTG for host or device mode, multiple SPI/I²C/UART for sensors and radios, and an SAI for I²S audio. 100-LQFP (14x14 mm) package with 77 I/O.","metaTitle":"STM32L4R9VIT6 STMicroelectronics MCU ARM Cortex-M4 120MHz","metaDescription":"STM32L4R9VIT6 32-bit ARM Cortex-M4 MCU, 120MHz, 2MB Flash, 640KB SRAM, 100-LQFP. Active lifecycle, industrial temp.","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":"77","Core Processor":"ARM® Cortex®-M4","Package / Case":"100-LQFP","Product Status":"Active","Data Converters":"A/D 14x12b; D/A 2x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32L4R9","Program Memory Size":"2MB (2M x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"100-LQFP (14x14)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$17.4400","priceTiers":[{"qty":1,"price":"$17.44000","currency":"USD"},{"qty":10,"price":"$16.03200","currency":"USD"},{"qty":25,"price":"$15.36760","currency":"USD"},{"qty":90,"price":"$13.54000","currency":"USD"},{"qty":270,"price":"$12.87544","currency":"USD"},{"qty":450,"price":"$12.04478","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/3911b6923e911f78d930b1bab40f9562.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32L4R9VIT6/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source to STM32L4R9VIT6?","answer":"The STM32L151CBU6A is a different series (STM32L1) with a Cortex-M3 core at 32 MHz and 37 I/Os. It is not a pin-compatible or performance-equivalent substitute for the STM32L4R9VIT6. For a drop-in replacement within the same L4R series, look at the STM32L4R5VIT6 — same package and pinout, but with less Flash and SRAM."},{"question":"Can STM32L4R9VIT6 be used as a replacement for STM32L4R5VIT6?","answer":"Yes, the STM32L4R9VIT6 is a higher-density variant in the same L4R series, with 2 MB Flash and 640 KB SRAM versus the smaller memory options of the L4R5. It is pin-compatible in the 100-LQFP package and runs the same peripheral set, so it can serve as a direct upgrade path without a PCB change."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L4R9VIT6","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L4R9VIT6 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}}