{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32H745IIT3","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32H745IIT3","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32H745IIT3","factsUrl":"https://icboms.com/api/mcp/products/STM32H745IIT3","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32H7 series, STM32H745IIT3, 32-Bit Dual-Core ARM Cortex-M4/M7, 240MHz, 480MHz, 2MB (2M x 8) FLASH, 1M x 8 RAM, 176-LQFP, -40°C~125°C.","salesMarkdown":"## Dual-core architecture — why the speed split matters The STM32H745IIT3 is a 32-bit dual-core microcontroller from ST's STM32H7 series, pairing an ARM Cortex-M4 core running at 240 MHz with a Cortex-M7 core at 480 MHz. This asymmetric architecture lets you offload real-time control loops (motor PWM, sensor polling) to the M4 while the M7 handles heavy compute — DSP, floating-point math, or Ethernet stack processing — without one task starving the other. The 2 MB of on-chip Flash (2M x 8) and 1 MB of RAM (1M x 8) give enough room for dual-bank firmware updates or OTA staging without external memory. ## Connectivity and peripheral count With 119 I/Os and a rich peripheral set including Ethernet, dual CAN-FD, USB OTG, QSPI, SAI, SPDIF, and a 28-channel 16-bit ADC plus dual 12-bit DACs, this MCU can serve as the central controller in a gateway, an HMI panel, or a multi-axis servo drive. The 176-LQFP (24x24 mm) package keeps routing manageable on a four-layer board. ## Lifecycle and sourcing posture For volume production or dual-source qualification, the STM32H743 is a single-core sibling in the same package and pinout — the difference is the second Cortex-M4 core on the H745.","metaTitle":"STM32H745IIT3 STM32H7 Dual-Core MCU, 240/480 MHz, 2 MB Flash","metaDescription":"STMicroelectronics STM32H745IIT3 dual-core ARM Cortex-M4/M7 MCU: 240 MHz + 480 MHz, 2 MB Flash, 1 MB RAM, -40°C to 125°C, 176-LQFP.","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":"119","Core Processor":"ARM® Cortex®-M4/M7","Package / Case":"176-LQFP","Product Status":"Active","Data Converters":"A/D 28x16b; 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-LQFP (24x24)","Voltage - Supply (Vcc/Vdd)":"1.62V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$17.1388","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/d0386c46bc62691b70d4ef5acf2dfd75.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the difference between STM32H745 and STM32H743?","answer":"The STM32H745 adds a second Cortex-M4 core running at 240 MHz alongside the Cortex-M7 at 480 MHz, while the STM32H743 is a single-core M7 device. Both share the same 176-LQFP package, 2 MB Flash, and peripheral set, so the H745 is the dual-core upgrade for asymmetric processing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32H745IIT3","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32H745IIT3 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T13:17:59.381Z","lastPublished":"2026-07-16T13:17:59.381Z","indexable":true}}