{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32F446RET7TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32F446RET7TR","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32F446RET7TR","factsUrl":"https://icboms.com/api/mcp/products/STM32F446RET7TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32F4 series, STM32F446RET7TR, ARM Cortex-M4 32-bit single-core MCU at 180MHz, 512KB Flash, 128KB RAM, 50 I/O, 64-LQFP (10x10mm), -40 to 105°C, 1.7 to 3.6V supply.","salesMarkdown":"## 180 MHz Cortex-M4 with FPU — the headroom you actually use The STM32F446RET7TR is an STMicroelectronics ARM Cortex-M4 MCU that clocks at 180 MHz — a full 80 MHz above the common STM32F1 parts and 100 MHz above the F3 series. That extra margin matters when you are running a sensor fusion loop or an audio codec alongside a communications stack: the FPU chews through single-precision math without burning cycles on software emulation, and the 512 KB Flash (512K x 8) plus 128 KB RAM (128K x 8) keeps a FreeRTOS image with TCP/IP and a logging buffer resident without external memory. ## Connectivity that saves a second MCU The peripheral set on this 64-pin part is unusually broad: CANbus, USB OTG, SAI, SPDIF-Rx, and a flexible EBI/EMI interface that can drive a parallel LCD or an external SRAM. For an industrial gateway or an audio effects pedal, that means one chip handles the protocol bridging and the real-time signal chain. ## Temperature range and supply — fits the industrial build The 1.7 V floor lets it run from two alkaline cells or a LiFePO4 battery in a low-power logging scenario, though at 180 MHz you will want the supply at 3.3 V for full speed. Internal oscillator, brown-out reset, POR, and LVD are all on-die, so the BOM stays lean. ST lists the STM32F446RET7TR as Active. For a new design going into a five-year production run, this is the status you want to see. The base product number is STM32F446, so any PCN or documentation updates will carry that family prefix.","metaTitle":"STM32F446RET7TR ARM Cortex-M4 MCU, 180MHz, 512KB Flash","metaDescription":"STMicroelectronics STM32F446RET7TR 32-bit ARM Cortex-M4 MCU at 180MHz with 512KB Flash and 128KB RAM. Active lifecycle, -40 to 105°C, 64-LQFP.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Speed":"180MHz","title":"STM32F446RET7TR","Series":"STM32F4","Package":"Tape & Reel (TR)","RAM Size":"128K x 8","Core Size":"32-Bit Single-Core","Peripherals":"Brown-out Detect/Reset, DMA, I²S, LVD, POR, PWM, WDT","Connectivity":"CANbus, EBI/EMI, I²C, IrDA, LINbus, SAI, SD, SPDIF-Rx, SPI, UART/USART, USB, USB OTG","Mounting Type":"Surface Mount","Number of I/O":"50","Core Processor":"ARM® Cortex®-M4","Package / Case":"64-LQFP","Data Converters":"A/D 16x12b; D/A 2x12b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"STM32F446","Program Memory Size":"512KB (512K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 105°C (TA)","Supplier Device Package":"64-LQFP (10x10)","Voltage - Supply (Vcc/Vdd)":"1.7V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.4192","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cd1250ee9b471f9370d29b0641a72b62.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32F446RET7TR/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to STM32F446RET7TR?","answer":"Within the STM32F4 family, the STM32F446RE (non-T7 temperature grade) and the STM32F446RC (256 KB Flash variant) share the same 64-LQFP footprint and peripheral map. The T7 suffix on this part specifies the -40 to 105°C range and tape-and-reel packaging. If you need more Flash, the STM32F446VE (512 KB, 100-pin) is software-compatible but not pin-compatible."},{"question":"What compliance documentation does ST provide for STM32F446RET7TR?","answer":"STMicroelectronics provides RoHS and REACH compliance declarations for the STM32F4 series. The part is lead-free and the 64-LQFP package is MSL 3 rated. Specific certificates (UL, IEC) are not listed for this part — ST's standard compliance documentation is available through their document portal or upon request with an RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32F446RET7TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32F446RET7TR 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}}