{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L4R5QII6","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L4R5QII6","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L4R5QII6","factsUrl":"https://icboms.com/api/mcp/products/STM32L4R5QII6","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32L4R5QII6, STM32L4R series, 32-bit ARM Cortex-M4 MCU, 120 MHz, 2 MB Flash, 640 KB SRAM, 110 I/O, 1.71 V–3.6 V, -40°C to 85°C, 132-UFBGA (7x7 mm), Tray.","salesMarkdown":"## What this Cortex-M4 brings to the board It runs at 120 MHz and packs 2 MB of Flash program memory with 640 KB of SRAM, giving firmware plenty of headroom for complex control loops, graphics frame buffers, or over-the-air update staging. The 132-UFBGA package (7x7 mm) keeps the footprint tight, though the fine-pitch BGA calls for careful PCB layout and a controlled reflow profile. With 110 I/O lines, this MCU can handle parallel buses, camera interfaces, or a large sensor array without external GPIO expanders. The connectivity list includes CANbus, I²C, SPI, UART/USART, USB OTG, SAI (serial audio), and an external memory interface (EBI/EMI) for NOR/NAND Flash or SRAM expansion.","metaTitle":"STM32L4R5QII6 STM32L4R MCU, ARM Cortex-M4 120MHz, 2MB Flash","metaDescription":"STMicroelectronics STM32L4R5QII6 32-bit ARM Cortex-M4 MCU at 120 MHz with 2 MB Flash, 640 KB RAM, 110 I/O, 132-UFBGA. Active lifecycle.","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":"110","Core Processor":"ARM® Cortex®-M4","Package / Case":"132-UFBGA","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":"132-UFBGA (7x7)","Voltage - Supply (Vcc/Vdd)":"1.71V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$16.4100","priceTiers":[{"qty":1,"price":"$16.41000","currency":"USD"},{"qty":10,"price":"$15.08000","currency":"USD"},{"qty":25,"price":"$14.45440","currency":"USD"},{"qty":80,"price":"$12.73563","currency":"USD"},{"qty":416,"price":"$12.11055","currency":"USD"},{"qty":832,"price":"$11.32923","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/3911b6923e911f78d930b1bab40f9562.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32L4R5QII6/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between STM32L4R5QII6 and the STM32L151CBU6A?","answer":"The STM32L151CBU6A uses an older Cortex-M3 core at 32 MHz with less memory, while the STM32L4R5QII6 runs a Cortex-M4 at 120 MHz with 2 MB Flash and 640 KB SRAM. The L4R5 also offers more I/O (110 vs 37) and a wider supply range (1.71 V–3.6 V vs 1.8 V). The two are not pin-compatible and serve different performance tiers."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L4R5QII6","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L4R5QII6 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}}