{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32H7A3ZIT6","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32H7A3ZIT6","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32H7A3ZIT6","factsUrl":"https://icboms.com/api/mcp/products/STM32H7A3ZIT6","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, 144-LQFP, -40°C~85°C.","salesMarkdown":"## 280 MHz Cortex-M7 with 2 MB Flash — memory and speed for industrial control The STM32H7A3ZIT6: ARM Cortex-M7 core at 280 MHz with 2 MB Flash and 1.4 MB RAM in 144-LQFP. ## Memory sizing — 2 MB Flash and 1.4 MB RAM on a single die The 2 MB Flash (2M x 8) gives room for a full RTOS, a TCP/IP stack, and a file system without external storage. The 1.4 MB RAM (1.4M x 8) handles large data buffers for display framebuffers or sensor fusion pipelines — a tier above the typical 512 KB SRAM found on mid-range Cortex-M4 parts. ## Connectivity and peripherals — industrial and IoT ready The connectivity list covers CANbus for industrial networks, USB OTG for host/device modes, and EBI/EMI for parallel displays or external memory. The 20x16-bit ADC and 3x12-bit DAC handle analog sensing and control loops without external converters. ## Package and rework — 144-LQFP with exposed pad The 144-LQFP (20x20 mm) is a hand-rework-friendly package — the gull-wing leads are visible and inspectable. It is not AEC-Q100 qualified, so skip it for safety-critical automotive under-hood applications unless you run your own qualification.","metaTitle":"STM32H7A3ZIT6 STM32H7 ARM Cortex-M7 MCU, 280 MHz, 2 MB Flash","metaDescription":"STMicroelectronics STM32H7A3ZIT6 32-bit ARM Cortex-M7 MCU at 280 MHz with 2 MB Flash and 1.4 MB RAM in 144-LQFP.","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":"CANbus, EBI/EMI, HDMI-CEC, I²C, IrDA, LINbus, MDIO, MMC/SD/SDIO, SAI, SPDIF, SPI, SWPMI, UART/USART, USB OTG","Mounting Type":"Surface Mount","Number of I/O":"97","Core Processor":"ARM® Cortex®-M7","Package / Case":"144-LQFP","Product Status":"Active","Data Converters":"A/D 20x16b; D/A 3x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32H7A3","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)":"1.62V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$18.4500","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cf150803bf91399bd59862fc1b86c6e1.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How many I/O pins does STM32H7A3ZIT6 have?","answer":"It has 97 I/Os available in the 144-LQFP package."},{"question":"What is the closest pin-compatible alternative to STM32H7A3ZIT6?","answer":"Within the STM32H7A3 line, the base product number STM32H7A3 covers multiple Flash/RAM density options in the same 144-LQFP footprint. For a pin-compatible drop-in with different memory sizing, check the STM32H7A3 family variants — the pinout is shared across the series, but confirm the specific memory map and peripheral set against your firmware image."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32H7A3ZIT6","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32H7A3ZIT6 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T12:32:45.527Z","lastPublished":"2026-07-16T12:32:45.527Z","indexable":true}}