{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32H745IIK3","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32H745IIK3","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32H745IIK3","factsUrl":"https://icboms.com/api/mcp/products/STM32H745IIK3","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32H7 series, STM32H745IIK3, 32-Bit Dual-Core ARM Cortex-M4/M7, 240MHz / 480MHz, 2MB (2M x 8) FLASH, 1M x 8 RAM, 176+25UFBGA (10x10), -40°C~125°C.","salesMarkdown":"## Dual-core architecture: what the 240 MHz and 480 MHz cores mean for your task split The STM32H745IIK3 pairs a Cortex-M4 running at 240 MHz with a Cortex-M7 at 480 MHz. The M7 handles throughput-heavy work — signal processing, graphics, or protocol stacks — while the M4 takes real-time control loops, low-level peripheral management, or safety monitoring. This asymmetric split avoids a single-core bottleneck without the overhead of an external companion chip. The 2 MB Flash and 1 MB RAM give both cores enough room for non-trivial firmware images and data buffers without external memory in many designs. The 176+25 UFBGA (10x10 mm) is a fine-pitch BGA — expect 0.5 mm ball pitch, which demands a controlled-impedance stackup and via-in-pad for the inner balls. The 128 I/O count gives enough headroom for a parallel display interface, external memory bus, and multiple serial peripherals without a port expander. ## Peripheral set and connectivity — what you can attach without glue logic The connectivity list covers CANbus, Ethernet, USB OTG, multiple SPI/I2C/UART, QSPI, and an external memory interface (EBI/EMI). That means a single chip can handle a touchscreen display, an Ethernet PHY, a CAN transceiver, and a QSPI NOR Flash for code shadowing — no CPLD or extra MCU needed. ## Lifecycle and supply posture STMicroelectronics lists the STM32H745IIK3 as Active. For dual-source planning, the STM32H745 family shares pin-compatibility across density options (same package, same footprint), so a move to a higher-Flash sibling is a BOM-line change, not a board respin.","metaTitle":"STM32H745IIK3 STM32H7 Dual-Core MCU, 480MHz, 2MB Flash","metaDescription":"STMicroelectronics STM32H745IIK3 dual-core ARM Cortex-M4/M7 MCU with 480MHz max speed, 2MB Flash, 1MB RAM, -40°C to 125°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"STMicroelectronics","Speed":"240MHz, 480MHz","Series":"STM32H7","Package":"Tray","RAM Size":"1M x 8","Core Size":"32-Bit Dual-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, I²S, LCD, POR, PWM, WDT","Connectivity":"CANbus, EBI/EMI, Ethernet, I²C, IrDA, LINbus, MDIO, MMC/SD/SDIO, QSPI, SAI, SPDIF, SPI, SWPMI, UART/USART, USB OTG","Mounting Type":"Surface Mount","Number of I/O":"128","Core Processor":"ARM® Cortex®-M4/M7","Package / Case":"201-UFBGA","Product Status":"Active","Data Converters":"A/D 36x16b; D/A 2x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32H745","Program Memory Size":"2MB (2M x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~125°C(TA)","Supplier Device Package":"176+25UFBGA (10x10)","Voltage - Supply (Vcc/Vdd)":"1.62V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$16.6914","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/a20f1be48936b09d2d09a08f2e457d78.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can STM32H745IIK3 run Linux?","answer":"The STM32H745IIK3 is a microcontroller-class device with 2 MB of on-chip Flash and 1 MB of RAM. It does not have a memory management unit (MMU) and is not designed to run a full Linux distribution. It runs bare-metal or a real-time OS like FreeRTOS, ThreadX, or Zephyr."},{"question":"What are the alternatives or equivalents to STM32H745IIK3?","answer":"Within the STM32H745 family, the STM32H745IIK3 shares pin-compatibility with other density options in the same 176+25 UFBGA package. For a different core or memory tier, the STM32H747 line adds a GPU, and the STM32H743 is a single-core M7 variant. All are active and available through our sourcing channel."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32H745IIK3","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32H745IIK3 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T12:57:26.045Z","lastPublished":"2026-07-16T12:57:26.045Z","indexable":true}}