STM32F446VET6TR - 180MHz Cortex-M4 512KB MCU | STMicroelectronics
MPN： STM32F446VET6TR ✓ 啟用中STM32F446VET6TR 概覽
An Arm Cortex-M4 microcontroller combines a 32-bit RISC processor core with tightly coupled peripherals, memory, and interrupt hardware on one integrated circuit. This MCU class is designed for embedded control, real-time signal processing, communications, audio, and industrial applications. The STM32F4 family hierarchy is Cortex-M4 processor, 32-bit RISC core, embedded microcontroller, and semiconductor.
Verified features for STM32F446VET6TR include an Arm Cortex-M4 core, 180 MHz maximum frequency, 512 KB Flash, 128 KB SRAM, 81 I/Os, DSP instructions, and an FPU. STMicroelectronics describes the STM32F446 family as offering 225 DMIPS and enhanced connectivity through dual Quad-SPI, SDRAM, and audio interfaces. The 100-LQFP package provides a substantial pin count for external memory, communication peripherals, and mixed-signal control systems.
The STM32F446 architecture is suited to applications that need more compute performance than general-purpose Cortex-M devices without moving to a higher-complexity microcontroller architecture. Its DSP and FPU resources can accelerate filter, control, and floating-point workloads, while the 512 KB Flash and 128 KB SRAM provide local storage for firmware and working data. Exact electrical limits, peripherals, pin names, and timing values must be taken from the manufacturer datasheet before hardware release.
Typical applications include industrial automation, audio and digital signal processing, communications infrastructure, motor and motion control, test and measurement, and connected embedded equipment. The 180 MHz operating rate and integrated memory make the MCU useful for real-time control tasks, while the 81 I/Os support sensors, actuators, displays, transceivers, and external peripheral devices.
A key design consideration is package-level planning: the 100-LQFP footprint requires careful routing of power, ground, high-speed signals, and decoupling. Firmware compatibility also depends on exact peripheral configuration, clock setup, startup sequence, pin multiplexing, and memory initialization; a same-family or pin-compatible designation alone does not guarantee a complete firmware drop-in replacement.
This product page combines verified manufacturer and distributor information with package, purchasing, comparison, and design guidance. Pricing and availability should be checked against the cited distributor listings as of 2026-10-22 before committing a production BOM.
直接替換替代品，適用於 STM32F446VET6TR — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： STM32F446VET6TR （相同外形與佔位） — 差異在於 Package, Flash Memory, SRAM, Operating Temperature, Communication Interfaces.
STM32F446VET6
✅ 直接替換聯絡詢價
查看資料表 →STM32F446VCT6TR
✅ 直接替換 ⚠️ 規格未經驗證✗ 缺貨
$18.3074 / 單位
查看資料表 →STM32F446RET6TR
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →STM32F405VGT6TR
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →STM32F429VGT6
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →STM32F446VET6TR 最大額定值與電氣特性
| Product Type | 32-bit ARM Cortex-M4 microcontroller |
| Processor Core | Arm Cortex-M4 |
| Maximum Operating Frequency | 180 MHz |
| Architecture | 32-bit RISC |
| Flash Memory | 512 KB (512K x 8) |
| SRAM | 128 KB |
| General-Purpose I/O | 81 I/Os |
| DSP Support | DSP instructions |
| FPU | Floating-point unit |
| Performance | 225 DMIPS |
| 封裝 | 100-LQFP (14 x 14 mm) |
| 安裝類型 | Surface mount |
| Core Family | STM32F4 |
| Connectivity Features | Dual Quad-SPI, SDRAM, and audio interfaces |
| Development Ecosystem | STM32 development boards, embedded software, and support |
STM32F446VET6TR 100-lqfp (14 x 14 mm) 腳位配置指南
STM32F446VET6TR（100-lqfp (14 x 14 mm) 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： STM32F446VET6TR.
請參閱 資料表 以查看完整腳位配置。
典型應用
STM32F446VET6TR 適用於 6 應用s: Industrial Automation Controller, Audio Signal Processing, Real-Time Motor and Motion Control, Communications Gateway, Test and Measurement Instrument, Embedded Data Acquisition System.
Industrial Automation Controller
STM32F446VET6TR fits an industrial controller that needs deterministic real-time computation alongside substantial local memory. Its verified 180 MHz Cortex-M4 core, 512 KB Flash, 128 KB SRAM, 81 I/Os, DSP instructions, and FPU provide resources for sensor sampling, digital filtering, state-machine control, communications, and actuator sequencing. The 100-LQFP 14 x 14 mm package provides a practical route to connect external sensors, drivers, communications transceivers, and status indicators without moving immediately to a larger package. The main design check is not performance alone: confirm the exact peripheral instances, electrical limits, clock tree, ESD protection, and environmental requirements in the manufacturer documentation.
推薦
Audio Signal Processing
STM32F446VET6TR is suitable for audio signal-processing subsystems because the verified Cortex-M4 implementation includes DSP instructions, an FPU, 180 MHz maximum frequency, and 512 KB Flash with 128 KB SRAM. Those resources can support digital filters, mixing, effects, buffer management, control loops, and communication with a codec or digital audio interface. STMicroelectronics identifies audio interfaces as part of the STM32F446 family capability set, making the device more relevant than a basic general-purpose MCU for real-time audio workloads. Actual suitability depends on required sample rate, channel count, latency, DMA behavior, memory footprint, clock accuracy, and analog front-end performance; these details must be validated in the target system.
推薦
Real-Time Motor and Motion Control
STM32F446VET6TR provides a strong compute platform for motor-control and motion-control systems that combine fast control calculations with external sensing and power-stage interfaces. The 180 MHz Cortex-M4 core and FPU can execute control loops and filtering, while the DSP instructions support common numerical operations. Its verified 81 I/Os and 100-LQFP package offer access to encoders, position sensors, PWM outputs, capture inputs, communications, and protection signals. The MCU is not a replacement for a dedicated gate driver or power stage, so the complete design must account for current sensing, timing margins, fault shutdown, isolation, thermal conditions, and safe-state behavior. Verify PWM, timer, ADC, and pin multiplexing details directly in the STM32F446 documentation.
推薦
Communications Gateway
STM32F446VET6TR can serve as the host processor in a communications gateway when the design needs local protocol handling, buffering, and real-time scheduling. Its verified Cortex-M4 core at 180 MHz, 512 KB Flash, and 128 KB SRAM provide capacity for firmware, protocol state, and data buffers, while the STM32F446 family is described as including dual Quad-SPI, SDRAM, and audio interfaces. The LQFP package can expose multiple serial, timer, debug, and general-purpose signals, although exact alternate-function availability must be checked against the package pinout. A production gateway design must separately verify transceiver interface voltage levels, protocol timing, DMA or cache effects, watchdog behavior, boot loading, cybersecurity requirements, and long-term component availability.
推薦
Test and Measurement Instrument
STM32F446VET6TR is a plausible controller for test and measurement equipment requiring precise sequencing, data acquisition, user-interface control, and communication. Its verified 180 MHz Cortex-M4 performance, DSP and FPU support, 512 KB Flash, 128 KB SRAM, and 81 I/Os allow the firmware to combine control logic with measurement processing and instrument communication. The 100-LQFP package offers enough external connectivity for sensors, display interfaces, USB or Ethernet transceivers, relays, and precision analog front ends. Measurement accuracy will depend mainly on the external signal chain, ADC architecture, reference quality, analog layout, calibration, and timing budget; the MCU itself does not establish measurement precision. Check the exact ADC, timer, DMA, and pin capabilities before selecting it.
推薦
Embedded Data Acquisition System
STM32F446VET6TR can support embedded data-acquisition systems that collect sensor information, execute filtering, and forward results through a local communications link. The 180 MHz Cortex-M4 core and DSP instructions are useful for time-critical sampling and digital signal conditioning, while the 512 KB Flash and 128 KB SRAM support firmware, calibration data, and short working buffers. The 81 verified I/Os provide a broad interface surface for sensor inputs, trigger signals, status LEDs, storage devices, and communications transceivers. For a production design, confirm the number and speed of usable timer, ADC, DMA, and serial resources; isolate analog and digital grounds appropriately; and budget memory for buffering. External SDRAM or storage may be needed for long captures.
推薦
推薦產品摘要
工程參考資料，適用於 STM32F446VET6TR — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | STM32F446VET6 | STM32F446VCT6TR | STM32F446RET6TR | STM32F405VGT6TR | STM32F429VGT6 |
|---|---|---|---|---|---|---|
| Package | 100-LQFP (14 x 14 mm) | 100-LQFP (14 x 14 mm) | 100-LQFP (14 x 14 mm) - requires verification | 100-LQFP (14 x 14 mm) - requires verification | 100-LQFP (14 x 14 mm) - requires verification | 100-LQFP (14 x 14 mm) - requires verification |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
主要差異化特點
- Higher verified compute performance than lower-speed general-purpose alternatives (對比STM32F411RET6TR)
- Larger verified memory resources (對比STM32F407VET6TR)
- Broad verified external interface capacity (對比STM32F429VGT6)
設計說明
Use the STM32F446VET6TR datasheet for the exact supply-voltage range, I/O limits, startup sequence, and decoupling requirements; those values are not present in the supplied snippets. Place the required input and output bypass capacitors immediately beside their associated power pins, keep high-current return paths short, and provide clean connections for analog and digital sections where applicable. Check startup and peripheral-load current against the selected regulator before layout release.
The 100-LQFP package has a 0.5 mm class fine-pitch footprint and requires careful fanout, solder-mask design, and assembly planning. Confirm land pattern dimensions from the manufacturer package drawing rather than relying on a generic LQFP footprint. Route oscillator, reset, boot, debug, and high-speed communications signals with short paths and continuous references to the appropriate ground plane. Validate the PCB with the selected assembler because pad length, solder mask, and paste volume can affect yield.
Do not treat a Cortex-M4 label or an LQFP-100 outline as proof of drop-in compatibility. For any substitute, compare pin-by-pin alternate functions, power pins, clock pins, reset and boot behavior, flash and SRAM capacity, peripheral instances, timer mappings, and required firmware initialization. The verified data confirms the STM32F446VET6TR package and core resources but does not provide a complete pin table, so schematic and firmware reviews remain mandatory.
Separate noisy switching or high-current paths from sensitive analog inputs and communication lines. Use a deliberate grounding strategy, keep decoupling return loops compact, and place protection components where their transient current will be diverted through a short, low-impedance path. If the MCU drives external sensors, displays, or transceivers, inspect signal direction and voltage compatibility against the exact alternate-function pin selected in the STM32F446 device documentation.
合規資訊
The supplied verified data does not explicitly state RoHS, REACH, lead-free, halogen-free, conflict-minerals, or AEC-Q100 status. No compliance claim is inferred from the STM32F4 family name. Obtain current material and qualification declarations from STMicroelectronics for the exact ordering code.