{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STM32F446ZET7","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STM32F446ZET7","canonicalUrl":"https://icboms.com/stmicroelectronics/STM32F446ZET7","factsUrl":"https://icboms.com/api/mcp/products/STM32F446ZET7","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STM32F4 series, 32-bit single-core ARM Cortex-M4 MCU, STM32F446ZET7, 180MHz, 512KB Flash, 128KB RAM, 114 I/O, 144-LQFP, -40 to 105°C, 1.7 to 3.6V.","salesMarkdown":"## 180 MHz ARM Cortex-M4 with FPU — the performance tier The 114 general-purpose I/Os in the 144-LQFP package give you room for a parallel LCD interface, a memory-mapped FPGA, or a bank of opto-isolated inputs on an industrial controller board. ## Connectivity and peripherals — what the bus carries This MCU integrates dual CANbus interfaces, USB OTG (host and device), an SPDIF-Rx input for digital audio, and a Serial Audio Interface (SAI) for I²S codecs. The EBI/EMI memory controller lets you map an external SRAM, NOR Flash, or FPGA directly into the 32-bit address space — useful when 512 KB of on-chip Flash is tight for a GUI image store or a data-logging buffer. Peripherals include brownout detect, POR, LVD, and a windowed watchdog — the kind of supervisory logic that keeps a motor controller from latching up on a sagging supply rail. The internal oscillator trims to within 1 % accuracy over temperature, so you can skip the external crystal on a cost-sensitive board as long as USB timing isn't required. ## Package and footprint — the 144-LQFP reality The 144-LQFP package (20x20 mm body) is a hand-solderable, rework-friendly quad flat pack with 0.5 mm pitch. No hidden balls, no X-ray inspection needed — a rework station with a hot-air nozzle and a flux pen can swap this part in under five minutes.","metaTitle":"STM32F446ZET7 STM32F4 ARM Cortex-M4 MCU, 180MHz, 512KB Flash","metaDescription":"STMicroelectronics STM32F446ZET7 32-bit ARM Cortex-M4 MCU at 180MHz with 512KB Flash, 128KB RAM, 114 I/O, 144-LQFP. Industrial temp -40 to 105°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Speed":"180MHz","title":"STM32F446ZET7","Series":"STM32F4","Package":"Tray","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":"114","Core Processor":"ARM® Cortex®-M4","Package / Case":"144-LQFP","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~105°C(TA)","Supplier Device Package":"144-LQFP (20x20)","Voltage - Supply (Vcc/Vdd)":"1.7V ~ 3.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$13.8600","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/cd1250ee9b471f9370d29b0641a72b62.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STM32F446ZET7/alternatives.json"},"ai":{"faq":[{"question":"Can STM32F446ZET7 replace STM32F446ZET6?","answer":"The STM32F446ZET7 is pin-compatible with the STM32F446ZET6 — same 144-LQFP footprint, same memory map, same peripheral set. If your board already runs a ZET6, the ZET7 drops in as a direct replacement with extended temperature margin."},{"question":"What is the maximum clock speed of STM32F446ZET7?","answer":"The STM32F446ZET7 runs at 180 MHz from the PLL. At this speed the Flash requires one wait state for zero-wait access, which the STM32F4 ART Accelerator handles transparently. The core delivers 225 DMIPS with the FPU enabled."},{"question":"What are equivalent or alternative parts to STM32F446ZET7?","answer":"Within the STM32F4 series, the STM32F446ZET6 is the closest pin-compatible alternative — same Flash, RAM, and peripherals, but with a commercial temperature range (-40 to 85 °C). For more Flash or RAM, the STM32F429 or STM32F7 series would require a PCB respin due to different pinouts and package options."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STM32F446ZET7","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STM32F446ZET7 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}}