{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32F439BGT6","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32F439BGT6","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32F439BGT6","factsUrl":"https://icboms.com/api/mcp/products/STM32F439BGT6","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32F4 series, ARM Cortex-M4 single-core MCU, 180MHz, 1MB Flash, 256KB SRAM, 168 I/O, 208-LQFP (28x28mm), tray; -40°C to 85°C, 1.8V to 3.6V supply; Ethernet, USB OTG, CAN, 24x12b ADC, 2x12b DAC.","salesMarkdown":"## Device overview: STM32F439BGT6 It runs at 180 MHz and packs 1 MB of Flash and 256 KB of SRAM. ## Memory and bus: 1 MB Flash, 256 KB SRAM, 180 MHz core The 180 MHz core clock is the highest in the STM32F4 value-line; you will need to configure flash wait states (typically 5 cycles) before raising the system clock past 120 MHz or the first instruction fetch hard-faults. The 1 MB Flash supports a single OTA staging area if you reserve a sector for the bootloader. The 256 KB SRAM is split across multiple blocks — the 64 KB CCM (core-coupled memory) is not DMA-accessible, so route time-critical interrupt vectors there for zero-wait execution. ## Connectivity and peripherals: Ethernet, USB OTG, CAN The integrated Ethernet MAC works with an external PHY via the RMII interface — the MAC itself is IEEE 1588 capable, useful for precision time-stamping in industrial control. USB OTG FS/HS requires an external PHY for high-speed operation; the on-chip FS PHY handles device and host modes at 12 Mbps. Two CAN 2.0B interfaces are present for automotive or industrial bus networks. The EBI/EMI supports parallel NOR/NAND Flash and SRAM, which can offload the internal memory for large frame buffers. Decouple each VDD pair with a 100 nF ceramic plus a 4.7 µF bulk per bank. For BOM planning, the base product number STM32F439 covers multiple density and package variants — verify the specific suffix (BGT6 for 208-LQFP, tray) when ordering.","metaTitle":"STM32F439BGT6 ARM Cortex-M4 MCU, 180MHz, 1MB Flash, 208-LQFP","metaDescription":"STMicroelectronics STM32F439BGT6 32-bit ARM Cortex-M4 MCU at 180MHz with 1MB Flash, 256KB SRAM, 168 I/O. Ethernet, USB OTG, CAN. -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":{"Speed":"180MHz","title":"STM32F439BGT6","Series":"STM32F4","Package":"Tray","RAM Size":"256K x 8","Core Size":"32-Bit Single-Core","Peripherals":"Brown-out Detect/Reset, DMA, I²S, LCD, POR, PWM, WDT","Connectivity":"CANbus, EBI/EMI, Ethernet, I²C, IrDA, LINbus, SPI, UART/USART, USB OTG","Mounting Type":"Surface Mount","Number of I/O":"168","Core Processor":"ARM® Cortex®-M4","Package / Case":"208-LQFP","Data Converters":"A/D 24x12b; D/A 2x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32F439","Program Memory Size":"1MB (1M x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"208-LQFP (28x28)","Voltage - Supply (Vcc/Vdd)":"1.8V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$14.2426","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/7ccff475f92d57ddcb2c7509216e5655.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32F439BGT6/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between STM32F439BGT6 and STM32F429BGT6?","answer":"Both are 180 MHz Cortex-M4 MCUs in the same 208-LQFP package with identical memory (1 MB Flash, 256 KB SRAM). The STM32F439 adds a hardware cryptographic processor (AES, DES, and hash) plus a true random number generator (TRNG) that the STM32F429 lacks. If your application does not need on-chip crypto acceleration, the STM32F429 is a drop-in pin-compatible alternative for cost reduction."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32F439BGT6","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32F439BGT6 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:03:28.771Z","lastPublished":"2026-07-22T18:03:28.771Z","indexable":true}}