{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32L4R5ZIT6","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32L4R5ZIT6","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32L4R5ZIT6","factsUrl":"https://icboms.com/api/mcp/products/STM32L4R5ZIT6","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32L4R series, STM32L4R5ZIT6, 32-bit ARM Cortex-M4 MCU, 120 MHz, 2 MB Flash, 640 KB SRAM, 115 I/O, 144-LQFP, -40°C to 85°C.","salesMarkdown":"The 115 I/O pins in a 144-LQFP package give it the connectivity headroom for sensor arrays, external memory buses, or parallel display interfaces. ## Connectivity and data converters for system integration The STM32L4R5ZIT6 integrates a broad set of wired interfaces: CANbus, I²C, IrDA, LINbus, SAI, SPI, UART/USART, and USB OTG. ## Package and footprint — 144-LQFP (20x20 mm) It is surface-mount and ships in tray form.","metaTitle":"STM32L4R5ZIT6 STM32L4R MCU, ARM Cortex-M4 120MHz, 2MB Flash","metaDescription":"STM32L4R5ZIT6: 32-bit ARM Cortex-M4 MCU at 120 MHz, 2 MB Flash, 640 KB SRAM, 115 I/O, industrial temp -40°C to 85°C. 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":"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":"$16.11088","priceTiers":[{"qty":1,"price":"$16.11088","currency":"USD"},{"qty":10,"price":"$15.43839","currency":"USD"},{"qty":30,"price":"$14.27261","currency":"USD"},{"qty":100,"price":"$13.25454","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/3911b6923e911f78d930b1bab40f9562.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32L4R5ZIT6/alternatives.json"},"ai":{"faq":[{"question":"What is STM32L4R5ZIT6's listed speed?","answer":"The core is an ARM Cortex-M4 running at 120 MHz. At this clock rate, the Flash requires zero wait states for most operations; the ART Accelerator handles instruction prefetch to keep the pipeline fed."},{"question":"What is the closest functional second-source for STM32L4R5ZIT6?","answer":"The STM32L151CBU6A is a lower-performance sibling — a Cortex-M3 at 32 MHz with 37 I/O and 128 KB Flash. It is not a pin-compatible or performance-equivalent second-source. For a direct STM32L4R-series alternate, look at the STM32L4R5xI density variants in the same 144-LQFP footprint."},{"question":"How to program STM32L4R5ZIT6?","answer":"Programming is done via the SWD (Serial Wire Debug) interface using a standard ST-Link/V2 or J-Link probe. The device boots from internal Flash with BOOT0 strapped low. The internal oscillator is enabled by default, so no external crystal is required for initial programming."},{"question":"What development board supports STM32L4R5ZIT6?","answer":"STMicroelectronics offers the NUCLEO-L4R5ZI and STM32L4R5I-DISCO discovery kit for this MCU family. Both boards expose the full I/O and include an integrated ST-Link debugger."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32L4R5ZIT6","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32L4R5ZIT6 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-13T05:30:19.501Z","lastPublished":"2026-08-13T05:30:19.501Z","indexable":true}}