{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32F446RCT6","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32F446RCT6","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32F446RCT6","factsUrl":"https://icboms.com/api/mcp/products/STM32F446RCT6","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32F4 series STM32F446RCT6, ARM Cortex-M4 32-Bit Single-Core MCU, 180MHz, 256KB Flash, 128K x 8 RAM, CANbus, USB OTG, 50 I/O, 64-LQFP, -40 to 85°C.","salesMarkdown":"## What this STM32F446RCT6 brings to the BOM On the peripheral side, this MCU includes a 16-channel 12-bit ADC, two 12-bit DACs, and a full set of connectivity: CANbus, USB OTG, SPI, I2C, UART/USART, SAI, and SPDIF-Rx. The 50 general-purpose I/Os in the 64-LQFP package give enough pins for a modest sensor array, display interface, and external memory bus without needing a larger footprint. The 180 MHz core clock puts this part in the performance tier of the STM32F4 family. Compared to the STM32L151CBU6A which runs a Cortex-M3 at 32 MHz, the STM32F446RCT6 delivers roughly 5.6x the clock rate for DSP and floating-point workloads. The Cortex-M4 includes a single-precision FPU and DSP instructions, so FIR filters, FFTs, and motor-control PID loops execute in hardware rather than emulated in software. For a BOM cost engineer, this means you can skip an external DSP or FPGA for many signal-chain tasks, consolidating the BOM. The 128 KB of RAM is sized for moderate frame buffers and protocol stacks. If your application streams audio or runs a TCP/IP stack with large windows, budget the RAM against the heap and stack requirements early — the 128 K x 8 is generous for a 64-pin MCU but not unlimited. ## Lifecycle and supply outlook ST continues to manufacture this part as a current-production line item in the STM32F4 series. For a storeroom keeper, this means the part is safe to stock for new designs and spares planning — no urgent cross-reference needed. The 50 I/O pins include multiple alternate functions, so a layout engineer should check the pin assignment against the peripheral mix before routing.","metaTitle":"STM32F446RCT6 STM32F4 MCU, ARM Cortex-M4 180MHz, 256KB Flash","metaDescription":"STM32F446RCT6 32-bit ARM Cortex-M4 MCU at 180MHz with 256KB Flash and 128KB RAM. Industrial temp range, USB OTG, CAN, SPI, I2C.","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":"256KB (256K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"64-LQFP (10x10)","Voltage - Supply (Vcc/Vdd)":"1.7V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.73763","priceTiers":[{"qty":1,"price":"$7.73763","currency":"USD"},{"qty":10,"price":"$7.59757","currency":"USD"},{"qty":30,"price":"$7.50424","currency":"USD"},{"qty":100,"price":"$7.41078","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/cd1250ee9b471f9370d29b0641a72b62.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32F446RCT6/alternatives.json"},"ai":{"faq":[{"question":"Does the STM32F446RCT6 support USB OTG?","answer":"Yes, USB OTG is listed in the connectivity set, alongside CANbus, SPI, I2C, UART/USART, SAI, and SPDIF-Rx. This makes it suitable for dual-role USB applications such as data logging to a flash drive or direct connection to a host PC."},{"question":"What is the difference between STM32F446RCT6 and STM32F446RET6?","answer":"The difference is Flash memory density. The STM32F446RCT6 has 256 KB of Flash, while the STM32F446RET6 has 512 KB. Both share the same 64-LQFP package, 180 MHz core, and peripheral set. Choose the RET6 variant if your firmware image exceeds 256 KB or you need OTA update staging space."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32F446RCT6","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32F446RCT6 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-13T09:47:47.394Z","lastPublished":"2026-08-13T09:47:47.394Z","indexable":true}}