{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32F446RET7","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32F446RET7","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32F446RET7","factsUrl":"https://icboms.com/api/mcp/products/STM32F446RET7","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32F4 series, STM32F446RET7, ARM Cortex-M4 32-Bit Single-Core MCU, 180MHz, 512KB Flash, 128K x 8 RAM, CANbus/EBI/EMI/I²C/SPI/UART/USB OTG, 50 I/O, 64-LQFP, -40 to 105°C.","salesMarkdown":"## 180 MHz Cortex-M4 with FPU — signal-processing headroom That clock rate puts it above the STM32F1 and STM32L1 families, giving it the throughput for real-time motor-control loops, audio codec pipelines, and sensor fusion algorithms without an external DSP. Program memory is 512 KB of Flash (512K x 8), with 128 KB of SRAM (128K x 8) for data buffers and stack. The 1.7 V minimum is lower than many Cortex-M4 parts, which matters for battery-powered designs that need to operate down to near-empty cells. The 105°C ceiling is 20°C above the standard industrial 85°C grade, giving extra margin for self-heating in enclosed enclosures. The 50 general-purpose I/Os are accessible on the perimeter pins, which simplifies routing on two-layer boards compared to a BGA. Built-in brown-out detect, power-on reset, low-voltage detect, and a watchdog timer reduce external supervisor IC count. An internal oscillator is available, though an external crystal improves accuracy for USB or CAN timing.","metaTitle":"STM32F446RET7 ARM Cortex-M4 MCU, 180MHz, 512KB Flash","metaDescription":"STMicroelectronics STM32F446RET7 32-bit MCU with ARM Cortex-M4 core at 180MHz, 512KB Flash, 128KB SRAM, 16x12b ADC, 2x12b DAC, -40 to 105°C.","metaKeywords":null},"attributes":{"series":"STM32F4","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"STMicroelectronics","Speed":"180MHz","Series":"STM32F4","Package":"Tray","RAM Size":"128K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","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","Product Status":"Active","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":"$11.3200","priceTiers":[{"qty":1,"price":"$11.32000","currency":"USD"},{"qty":10,"price":"$10.22300","currency":"USD"},{"qty":25,"price":"$9.74760","currency":"USD"},{"qty":80,"price":"$8.46388","currency":"USD"},{"qty":230,"price":"$8.08348","currency":"USD"},{"qty":440,"price":"$7.37023","currency":"USD"},{"qty":960,"price":"$6.41922","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/cd1250ee9b471f9370d29b0641a72b62.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32F446RET7/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source for STM32F446RET7?","answer":"The STM32L151CBU6A is a lower-power ARM Cortex-M3 alternative from the STM32L1 series, but it runs at 32 MHz instead of 180 MHz and has 37 I/Os versus 50. It is not a pin-compatible drop-in — the package and peripheral mix differ. For a true performance-equivalent second source within the STM32F4 family, consider other STM32F446 variants or the STM32F4 series parts with similar Flash and RAM sizes."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32F446RET7","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32F446RET7 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}