{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32H7A3IIK6Q","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32H7A3IIK6Q","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32H7A3IIK6Q","factsUrl":"https://icboms.com/api/mcp/products/STM32H7A3IIK6Q","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32H7A3IIK6Q, STM32H7 series, 32-bit ARM Cortex-M7 MCU, 280 MHz, 2 MB Flash, 1.4 MB RAM, 128 I/O, 1.62 V to 3.6 V, -40°C to 85°C, 176+25 UFBGA (10x10).","salesMarkdown":"## 280 MHz Cortex-M7 with 2 MB Flash and 1.4 MB RAM It belongs to the STM32H7 series and is built for high-throughput applications — think motor drives, human-machine interfaces, industrial controllers, and audio processing where you need the core to keep up without external memory. The supply range of 1.62 V to 3.6 V covers both 1.8 V and 3.3 V logic rails, so you can run the core at the low end for power-sensitive nodes and still drive 3.3 V peripherals. ## Package and footprint considerations Housed in a 201-UFBGA (176+25 balls, 10x10 mm body), this is a fine-pitch BGA — 0.5 mm ball pitch typical for the STM32H7A3 family. The PCB layout needs a microvia-capable fab and careful fanout; the 25 extra balls in the centre pad are mostly power and ground, which helps with decoupling but adds to the via count. Plan for a 4-layer board minimum, and confirm the moisture sensitivity level (MSL 3 is common for this package class) before the reflow profile. The base product number STM32H7A3 covers a range of Flash and RAM options in the same package, so if the 2 MB / 1.4 MB variant fits, the supply pipeline is well established.","metaTitle":"STM32H7A3IIK6Q ARM Cortex-M7 MCU, 280 MHz, 2 MB Flash","metaDescription":"STMicroelectronics STM32H7A3IIK6Q 32-bit MCU with 280 MHz Cortex-M7 core, 2 MB Flash, 1.4 MB RAM, 128 I/O, -40°C to 85°C.","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":"128","Core Processor":"ARM® Cortex®-M7","Package / Case":"201-UFBGA","Product Status":"Active","Data Converters":"A/D 24x16b; 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":"176+25UFBGA (10x10)","Voltage - Supply (Vcc/Vdd)":"1.62V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$12.8717","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/985f332f49a625838a8e63b39b83cb49.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the maximum CPU speed of STM32H7A3IIK6Q?","answer":"The Cortex-M7 core runs at 280 MHz."},{"question":"Does STM32H7A3IIK6Q have a pin-compatible alternative in the same family?","answer":"The STM32H7A3 series shares the same 176+25 UFBGA package and pinout across density options. Parts like STM32H7A3RIT6 (2 MB Flash, 1.4 MB RAM) or STM32H7A3VIT6 (2 MB Flash, 1.4 MB RAM) are pin-compatible in the same footprint — check the STM32H7A3 datasheet for the exact memory and peripheral mapping. For a higher-performance sibling with the same pinout, the STM32H743IIK6 runs at 400 MHz but uses a different core revision; verify the peripheral compatibility before swapping."},{"question":"Is STM32H7A3IIK6Q compatible with the STM32H7 series?","answer":"Yes, it is a member of the STM32H7 series. It uses the same Cortex-M7 core, same peripheral IP blocks, and same development toolchain (STM32CubeIDE, HAL, LL drivers). Code written for other STM32H7 parts can be ported with minimal changes, though you will need to adjust clock configuration for the 280 MHz ceiling and verify the peripheral set matches."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32H7A3IIK6Q","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32H7A3IIK6Q when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T12:53:14.894Z","lastPublished":"2026-07-16T12:53:14.894Z","indexable":true}}