{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32H7B3IIT6Q","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32H7B3IIT6Q","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32H7B3IIT6Q","factsUrl":"https://icboms.com/api/mcp/products/STM32H7B3IIT6Q","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32H7 series, ARM Cortex-M7, 32-Bit Single-Core MCU, 280MHz, 2MB (2M x 8) FLASH, 1.4M x 8 RAM, 176-LQFP, -40°C~85°C (TA).","salesMarkdown":"The STM32H7B3IIT6Q: 2 MB of Flash and 1.4 MB of SRAM. 176-LQFP package with 119 I/O. At 280 MHz, this core can handle real-time control loops, audio processing, or graphics rendering without breaking a sweat. The Cortex-M7 includes a double-precision FPU and a cache architecture that keeps the pipeline fed from the 2 MB Flash. If you are coming from a lower-speed MCU, budget for flash wait states at this clock — the datasheet's memory configuration table tells you how many cycles to insert per access at 280 MHz to avoid hard faults on branch-heavy code. ## Memory sizing for the BOM 2 MB of Flash and 1.4 MB of SRAM. Base product number STM32H7B3. ## Connectivity and peripherals at a glance The peripheral set covers the major interfaces you would expect on a high-end MCU: dual CANbus, USB OTG, multiple SPI and I2C, SAI for audio, SPDIF, and a camera interface. The EBI/EMI bus lets you attach external SRAM, NOR Flash, or an FPGA without a separate bridge. The LCD controller with the built-in DMA engine can drive a display without loading the CPU. For industrial designs, the brown-out detect and POR keep the system from running on a glitchy supply. ## Package and temperature grade 176-LQFP (24x24 mm) surface-mount package. Supply voltage range 1.62 V to 3.6 V. ## Sourcing and lifecycle There is no official successor listed; this is the current-generation part in the STM32H7B3 line.","metaTitle":"STM32H7B3IIT6Q STM32H7 ARM Cortex-M7 MCU, 280 MHz","metaDescription":"STMicroelectronics STM32H7B3IIT6Q 32-bit ARM Cortex-M7 MCU, 280 MHz, 2 MB Flash, 1.4 MB SRAM, 176-LQFP. Active lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"STMicroelectronics","Speed":"280MHz","Series":"STM32H7","Package":"Tray","RAM Size":"1.4M x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, I²S, LCD, POR, PWM, WDT","Connectivity":"Camera, CANbus, EBI/EMI, HDMI-CEC, I²C, IrDA, LINbus, MDIO, MMC/SD/SDIO, PSSI, SAI, SPDIF, SPI, SWPMI, UART/USART, USB OTG","Mounting Type":"Surface Mount","Number of I/O":"119","Core Processor":"ARM® Cortex®-M7","Package / Case":"176-LQFP","Product Status":"Active","Data Converters":"A/D 20x16b; D/A 3x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32H7B3","Program Memory Size":"2MB (2M x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"176-LQFP (24x24)","Voltage - Supply (Vcc/Vdd)":"1.62V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$14.7694","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b207a7dacd68b1b60dc6ac6c691e8a7d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the difference between STM32H7B3IIT6Q and STM32H7B3IIT6?","answer":"The difference is in the ordering code suffix — the 'Q' typically indicates a specific packaging or environmental compliance variant (lead-free / RoHS). Both are based on the same STM32H7B3 die with identical core, memory, and peripheral specifications. The exact difference is confirmed in the datasheet's ordering information table."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32H7B3IIT6Q","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32H7B3IIT6Q when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T12:53:05.675Z","lastPublished":"2026-07-16T12:53:05.675Z","indexable":true}}