{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32F446ZET6","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32F446ZET6","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32F446ZET6","factsUrl":"https://icboms.com/api/mcp/products/STM32F446ZET6","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32F4 series, STM32F446ZET6, ARM Cortex-M4 32-bit MCU, 180MHz, 512KB Flash, 128K x 8 RAM, 114 I/O, CANbus, USB OTG, 1.7V-3.6V, -40°C to 85°C, 144-LQFP.","salesMarkdown":"## 180 MHz Cortex-M4 with DSP and FPU — the performance baseline The 114 available GPIOs in the 144-LQFP package give enough headroom for parallel buses, sensor arrays, and human-machine interface panels without needing port expanders. ## Peripheral set — how many external chips it replaces The connectivity block covers CANbus, USB OTG (host and device), multiple SPI and I²C buses, UART/USART with LIN and IrDA support, plus an SAI for serial audio and a SPDIF-Rx interface for digital audio input. The EBI/EMI memory controller can gluelessly attach external SRAM, NOR Flash, or LCD panels. Brown-out detect, POR, and a programmable voltage detector are built in, reducing the need for discrete supervisor ICs.","metaTitle":"STMicroelectronics STM32F446ZET6 MCU, ARM Cortex-M4, 180MHz","metaDescription":"STMicroelectronics STM32F446ZET6 32-bit ARM Cortex-M4 MCU, 180MHz core, 512KB Flash, 128KB SRAM, 114 I/O, industrial temp -40°C to 85°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":"114","Core Processor":"ARM® Cortex®-M4","Package / Case":"144-LQFP","Product Status":"Active","Data Converters":"A/D 24x12b; 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 ~ 85°C (TA)","Supplier Device Package":"144-LQFP (20x20)","Voltage - Supply (Vcc/Vdd)":"1.7V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$11.3000","priceTiers":[{"qty":1,"price":"$11.30000","currency":"USD"},{"qty":10,"price":"$10.38200","currency":"USD"},{"qty":60,"price":"$9.95150","currency":"USD"},{"qty":120,"price":"$8.76817","currency":"USD"},{"qty":240,"price":"$8.33779","currency":"USD"},{"qty":480,"price":"$7.79988","currency":"USD"},{"qty":960,"price":"$7.15438","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/cd1250ee9b471f9370d29b0641a72b62.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32F446ZET6/alternatives.json"},"ai":{"faq":[{"question":"What are the alternatives to STM32F446ZET6?","answer":"The STM32L151CBU6A is a lower-power ARM Cortex-M3 part from the STM32L1 series, but it runs at 32 MHz with 37 I/O and lacks the DSP/FPU, the 180 MHz core speed, the 512 KB Flash, and the 114 I/O count of the STM32F446ZET6. It is not a pin-compatible or performance-equivalent second source — it serves a different power-versus-performance trade-off."},{"question":"What development board supports STM32F446ZET6?","answer":"STMicroelectronics offers the NUCLEO-F446ZE and the STM32F446E-EVAL evaluation board for this MCU. Both provide access to the full peripheral set and are suitable for prototyping and firmware development."},{"question":"Is STM32F446ZET6 compatible with STM32F429?","answer":"Both are STM32F4 series Cortex-M4 MCUs, but the STM32F429 typically offers a higher memory density, a TFT-LCD controller, and a different pinout in the same 144-LQFP package. Software migration is straightforward within the STM32Cube ecosystem, but a board-level hardware review is required due to peripheral and pin assignment differences."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32F446ZET6","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32F446ZET6 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}}