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STM32F446RCT6

ARM Cortex-M4 180MHz、256KB 闪存、128KB SRAM、FPU+DSP、USB HS、双 QSPI、FMC、3ADC+2DAC、LQFP-64

38000

有效库存
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制造商零件：

STM32F446RCT6

包装：

LQFP-64（10 x 10 x 1.4 毫米，0.5 毫米间距）

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说明

意法半导体的 STM32F446RCT6 是一款高性能 ARM Cortex-M4 微控制器，工作频率高达 180 MHz，具有 256 KB 闪存、128 KB SRAM 和带 DSP 指令的单精度 FPU。它具有用于零等待状态闪存执行的 ART 加速器、三个 12 位 ADC（2.4 MSPS）、两个 12 位 DAC、多达 20 个通信接口（包括 USB 2.0 HS/FS OTG、2× CAN、4× SPI、4× I²C、6× USART/UART、2× SAI）、双 QuadSPI、支持 SDRAM 的 FMC 和 17 个定时器。它采用 64 引脚 LQFP 封装（10×10 毫米），有 50 个 GPIO，工作电压为 1.7 V 至 3.6 V，工作温度为 -40°C 至 +85°C。.

STM32F446RCT6 是意法半导体 STM32F4 系列的高性能微控制器，基于 ARM Cortex-M4 32 位 RISC 内核，具有单精度浮点运算单元 (FPU) 和完整的 DSP 指令集。它的工作频率高达 180 MHz，提供 225 DMIPS 和 608 CoreMark 性能。.

STM32F446 在 F4 系列中的关键差异在于其丰富的连接性：它是唯一一款具有双 QuadSPI（支持内存映射模式，可进行经济高效的外部闪存扩展）、支持 SDRAM 的灵活内存控制器 (FMC) 和两个带专用音频 PLL 的串行音频接口 (SAI)的 F4 变体。这些特性使其对消费音频、工业 HMI 和物联网网关应用特别有吸引力。.

ART 加速器（自适应实时加速器）采用 128 位宽闪存接口，带有指令预取和高速缓存，能以 180 MHz 的频率通过闪存实现零等待状态执行，消除了通常会影响从非高速缓存闪存运行的 Cortex-M4 器件的性能损失。.

RCT6 变体提供 256 KB 闪存和 128 KB SRAM（外加 4 KB 备用 SRAM），采用 64 引脚 LQFP 封装，带 50 个 GPIO。这是中等密度选项；RET6 变体在相同的 LQFP-64 封装中提供 512 KB 闪存，适用于需要更多代码空间的应用。.

运行模式下的功耗为 200 µA/MHz（典型值），闪存频率为 180 MHz，停止模式下的功耗为 50 µA。该器件支持多种低功耗模式（睡眠、停止、待机），并为 RTC 和备份寄存器保留 VBAT 供电。.

外设集包括三个 12 位 ADC（每个 2.4 MSPS，三重交错模式下 7.2 MSPS）、两个 12 位 DAC、两个 CAN 2.0B 控制器、带片上物理层的 USB 2.0 全速和高速 OTG、SPDIF-Rx 输入、摄像头接口和 HDMI-CEC。.

** 带 FPU 的 Cortex-M4 内核：** 32 位 ARM Cortex-M4 内核以 180 MHz 的频率执行 Thumb-2 指令。单精度 FPU 可加速浮点运算（1 周期 MAC、硬件除法），这对传感器融合和音频 DSP 至关重要。内存保护单元（MPU）允许隔离操作系统任务，以实现可靠的嵌入式软件。.

**自适应实时加速器由指令缓存、数据缓存和 Cortex-M4 与嵌入式闪存之间的预取队列组成。由于闪存访问时间（25 ns）限制了零等待执行速度，在没有高速缓存的情况下只能达到 ~40 MHz，因此 ART 加速器对指令和数据访问都进行了高速缓存，从而实现了线性代码路径 180 MHz 的零等待性能。缓存缺失会增加 1-3 个等待状态。.

**总线矩阵和 DMA：** 32 位多 AHB 总线矩阵通过独立的 AHB/APB 总线连接 Cortex-M4、DMA 控制器和外设。两个 DMA 控制器（共 16 个数据流）具有 FIFO 和突发支持功能，可卸载数据传输（ADC 到内存、内存到 SPI 等），无需 CPU 干预。FMC 和 QuadSPI 都有专用的 AHB 主端口，用于零延迟外部存储器访问。.

** 时钟和电源管理：** 内部 16 MHz RC（精度为 1%）可在无外部晶体的情况下启动。外部 4-26 MHz 晶体或谐振器可将主 PLL 驱动至 180 MHz。每个外设的动态电压缩放和时钟门控可最大限度地降低功耗。当主电源断开时，VBAT 域可保持 RTC 和 4 KB 后备 SRAM。.

别针组 名称 类型 说明
电源 VDD、VDDA、VBAT P VDD=1.7-3.6V 数字电源（4 个引脚）；VDDA=模拟电源；VBAT=RTC/备份 SRAM 的备用电池；VSS/VSSA=接地基准（4+1 个引脚）
靴子 BOOT0 I 启动模式选择；复位时采样；0=闪存，1=系统内存（启动加载程序）；为闪存启动添加 10kΩ 下拉电阻
NRST I 低电平有效复位；带内部上拉的开漏；施密特触发器输入；连接 100nF 电容至接地端和可选复位按钮
GPIO PA0-PA15，PB0-PB15，PC0-PC15，PD0-PD2 输入/输出 50 个 GPIO 引脚；大多数 5V 耐压；外设备用功能映射；高达 90 MHz 的切换速度；8 MHz 外部中断能力
OSC ph0/osc_in, ph1/osc_out 输入/输出 4-26 MHz 外部晶体振荡器；在使用内部 RC 或通过 MCO 使用外部时钟时，可用作 GPIO
调试 PA13/SWDIO、PA14/SWCLK 输入/输出 串行线调试端口；必须用于编程和调试；PA13=SWDIO，PA14=SWCLK；JTAG 引脚（PA15、PB3、PB4）与 GPIO 共享
USB PA11/USB_DM、PA12/USB_DP 输入/输出 USB 2.0 全速数据引脚（片上 PHY）；直接连接至 USB 连接器，DP 上有 1.5kΩ 上拉，用于 FS 设备
应用 说明
带外部存储器的物联网网关 双 QuadSPI 用于外部 NOR 闪存（固件 + OTA 存储），FMC 用于 SDRAM（网络缓冲器）；USB HS 用于主机模式外设连接；180MHz + FPU 用于 TLS 加密；20 多个接口用于多协议桥接（CAN、UART、SPI、I²C）。
音频处理设备 SAI 和专用音频 PLL 提供 I²S/TDM 音频接口；FPU 加速 FFT 和滤波器算法；DAC 生成模拟音频输出；SPDIF-Rx 接收数字音频；USB HS 传输音频数据流；256KB 闪存可容纳音频编解码器和应用程序
带通信功能的电机控制 先进的 TIM1/TIM8 PWM 定时器，用于三相电机驱动；2× CAN，用于工业网络；ADC，用于电流感应；TIM2/5 上的编码器接口；DSP 指令，用于面向现场的控制；FMC，用于 HMI 显示缓冲器
工业人机界面控制器 FMC 驱动并行 TFT LCD（8080/6800 模式）；SDRAM 存储帧缓冲器；通过 ADC 进行触摸感应；USB 用于配置；CAN 用于 PLC 通信；LQFP-64 适合紧凑型面板安装机箱
模型 制造商 兼容性 主要区别
STM32F446RET6 ST 针脚兼容升级 相同的 LQFP-64 引脚布局；512KB 闪存（相对于 256KB）；相同的 SRAM 和外设；适用于需要更多闪存的代码繁重型应用。
STM32F407VGT6 ST 功能等效 LQFP-100（较大）；1MB 闪存、192KB SRAM；以太网 MAC（缺少 F446）；无双 QSPI 或 SAI；更多 GPIO；需要以太网和更多 I/O 时使用
STM32G474VET6 ST 竞争性替代方案 LQFP-100；170MHz Cortex-M4；512KB 闪存；用于电机控制的高分辨率 PWM；数学加速器 (CORDIC)；无 USB HS；更好的模拟外设；用于以电机为重点的设计
LPC4337JBD100 恩智浦 竞争性替代方案 LQFP-100；双核 M4+M0；204MHz M4；1MB 闪存；以太网；更多输入/输出；成本更高；需要双核处理时使用
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质量保证

Quality is the core foundation of our long-term global cooperation. With over 20 years of experience in the electronic component industry, Materialparts has built a strict and standardized quality management system covering component sourcing, incoming inspection, full-batch testing, packaging and delivery. We are committed to delivering 100% genuine, high-reliability electronic components for industrial control, automotive electronics, consumer electronics and medical device industries, and fully safeguarding your production and R&D projects.

1. Authorized & Genuine Sourcing Promise

All of our electronic components are procured from official authorized distributors and original manufacturers. We strictly reject counterfeits, refurbished parts, disassembled components and gray-market goods. Every product is guaranteed to be brand-new original parts and fully consistent with the original technical parameters. For branded products such as NXP IC series, we maintain complete supply channel documents to realize full product traceability.

2. Strict Full-batch Quality Inspection

We implement 100% full-batch quality control for all goods before shipment. Our professional QC team conducts multi-dimensional tests including appearance inspection, electrical parameter testing, performance verification and packaging check. Each batch of components is attached with complete inspection reports and batch records. We stick to zero-tolerance standards for defective products to ensure every piece of component meets industrial application requirements.

3. Industry Standard Compliance

Our products comply with a variety of international industry quality standards to adapt to high-standard application scenarios:
  • 汽车电子: All automotive-grade components pass AEC-Q series certification, featuring excellent stability and durability to adapt to complex vehicle operating environments.
  • 医疗设备: High-reliability components meet medical industry safety and compliance regulations, ensuring stable operation for medical equipment.
  • Industrial Control & Consumer Electronics: Products conform to universal international electronic industry standards, suitable for long-term continuous operation of various equipment.

4. Professional Reliability Control

For static-sensitive, moisture-sensitive and precision components such as ICs, PCBs, sensors and connectors, we carry out reliability screening in advance. Combined with standardized ESD anti-static packaging and vacuum moisture-proof packaging, we avoid component damage caused by static electricity, dampness or collision during storage and transportation, and retain the original performance of products.

5. Traceability Management System

We establish a complete product traceability system. Each batch of goods corresponds to independent batch number, sourcing record, inspection record and delivery record. Customers can query the whole lifecycle information of components at any time. This system effectively solves quality risks and facilitates after-sales handling and production quality control for your company.

6. After-sales Quality Guarantee

If any product is confirmed to have non-conformity quality problems due to our reasons after receipt, we provide free return, exchange and supplementary delivery services. Our professional quality team will also conduct root cause analysis to optimize our quality control process. We respond to quality feedback within 24 hours to resolve your worries efficiently.

联系我们

If you have inquiries about our quality standards, inspection procedures or product certification documents, please feel free to contact us:

 

Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China

 

发货与付款

Materialparts is a professional global supplier of electronic components with over 20 years of industry experience. We provide one-stop supply of passive components, integrated circuits, as well as parts for industrial control, automotive electronics, consumer electronics and medical devices. Below are the unified shipping and payment policies applicable to all orders, samples and bulk purchases worldwide.

1. Payment Terms

We offer a variety of secure and convenient payment methods to meet diverse business cooperation needs. Details are as follows:
  1. Accepted Payment Methods
  • T/T (Bank Wire Transfer): The primary settlement method for bulk orders and a widely used international payment channel.
  • PayPal: Ideal for small orders, sample orders and quick payments.

  1. Settlement Currency

     

    US Dollar (USD) is the default settlement currency. RMB is available for domestic customers.

  2. Bank Charges

     

    All transfer fees, intermediary bank charges and other remittance-related expenses shall be borne by the buyer.

  3. Payment Requirements
  • Sample and small orders: Shipment will be arranged upon full payment.
  • In-stock bulk orders: Goods will be delivered within 2 to 3 working days after full payment.

2. Shipping & Delivery

We partner with leading global logistics providers to ensure safe and fast delivery worldwide. Relevant details are listed below:
  1. Logistics Partners
  • International Express: DHL, FedEx, UPS, TNT
  • Economy Logistics: Air freight and sea freight for large-volume cargo
  • Domestic Delivery: SF Express, Yunda Express
  1. Order Processing Time
  • In-stock items: Orders confirmed and fully paid before 14:00 (GMT+8) will be shipped on the same day. All other orders will be dispatched within 1 to 2 working days.
  • Out-of-stock or sourced items: The delivery lead time will be confirmed separately according to brand and inventory status.
  1. Estimated Transit Time
  • International Express: 3 – 7 working days globally
  • Air Freight: 7 – 12 working days
  • Sea Freight: 25 – 40 working days for heavy and large bulk cargo
  1. Shipping Fee Rules
  • Shipping cost is calculated based on package weight, volume, destination and delivery method.
  • Both freight prepaid and freight collect are available. Please provide your courier account number in advance if you choose freight collect.
  • Free international express delivery is offered for large orders. Terms for long-term partners can be negotiated separately.
  1. Shipment Tracking
     

    Within 24 hours after dispatch, we will send the tracking number, commercial invoice, packing list and other documents to your email or communication account. You may check the shipment status online in real time.

3. General Order Rules & Notes

  1. MOQ & Sample Service

     

    We support flexible minimum order quantities for samples, small-batch and large-batch orders. All sample orders shall comply with the above shipping and payment policies.

  2. Packaging Standard

     

    All electronic components are packed with professional anti-static and shockproof materials. Original factory packaging is available for branded chips and integrated circuits.

4. Customs & Liability Statement

  1. Import Duties & Taxes

     

    All import duties, customs clearance fees and local taxes incurred for international shipments shall be borne by the buyer. We will provide complete customs documents to assist you with clearance procedures.

  2. Handling of Lost or Damaged Goods
  • In case of loss or severe damage during transit, please contact us within 48 hours after receiving the tracking information. We will assist you in filing a claim with the logistics provider.
  • We shall not be liable for any losses caused by incorrect delivery address, wrong contact information or the buyer’s refusal to complete customs clearance.

5. Local Pickup in Shenzhen

Local pickup service is available for customers in Shenzhen and surrounding areas:
  • Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong Province, China
  • Business Hours: 09:00 – 18:00, Monday to Friday. Closed on weekends and official public holidays.
  • Notice: Please make an appointment via email or communication tools one day in advance, and present your order information upon pickup.

Contact Information

Email: info@materialparts.com

Tel / WhatsApp: +86 13760382860

服务与包装

Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

Core Services

1. One-stop Sourcing & BOM Support

We specialize in a full range of passive and active electronic components, including SMD resistors, power resistors, connectors, aviation connectors, LED beads, flexible circuit boards, printed circuit boards, and integrated circuits. Our professional team provides BOM list consolidation, component matching, and alternative model recommendation services. We support sample orders, small-batch trial production, and mass production orders with flexible MOQs to meet diverse procurement needs.

2. Genuine Product Guarantee & Full-process Quality Inspection

All products are sourced from official authorized channels and are 100% original genuine parts. Every batch of goods undergoes strict full-process quality inspection before delivery, with complete batch records and traceability documents provided. Our products comply with AEC-Q standards for automotive electronics and high-reliability specifications for medical devices. We eliminate counterfeits, refurbished parts and defective products from the source to secure your project production.

3. Fast Quotation & Order Processing

Our customer service team responds promptly to inquiries and quotation requests. All in-stock orders will be processed within one working day. We provide stocking reservation services for long-term cooperative customers, effectively solving problems such as component shortages and unstable supply chains.

4. Professional Technical Support

Our senior engineer team provides free technical consultation, model selection guidance and original manufacturer datasheets. We assist customers in solving problems related to product R&D, circuit design and component application, providing reliable technical support for project progress.

5. Sourcing for Special Components

Relying on our global supply chain network, we professionally source scarce components, obsolete parts and customized special components to efficiently solve your procurement difficulties.

6. Global Logistics & Document Services

We cooperate with mainstream international logistics providers including DHL, FedEx, UPS and TNT to achieve fast global delivery. We can provide complete export documents such as customs declaration files, commercial invoices and packing lists to ensure smooth customs clearance for international shipments. Local pickup is also available for customers in Shenzhen, China.

Professional Packaging Standards

Electronic components are sensitive to static electricity, collision, moisture and dust. We adopt industry-standard anti-static packaging solutions to fully ensure the integrity of goods during transportation and storage.

1. General Packaging Specifications

  • All components are packed separately to avoid damage caused by friction and collision;
  • Shockproof buffer materials are added for fragile products to ensure transportation safety;
  • Each package is clearly marked with part number, quantity, batch number and specifications for easy inventory counting and management.

2. Classified Professional Packaging

  • Anti-static Packaging: Static-sensitive components such as chips, circuit boards and sensors are packaged with anti-static bags, shielding boxes and conductive foam in strict accordance with international anti-static standards to prevent static damage.
  • Vacuum Moisture-proof Packaging: Moisture-sensitive components are vacuum-sealed with desiccants to isolate humid air, suitable for ocean transportation and long-term storage.
  • Original Factory Packaging: Integrated circuits of brands such as NXP are delivered with original reels, trays or tubes by default, retaining complete original packaging and adapting to automated SMT production lines.
  • Discrete Device Packaging: Discrete devices such as SMD resistors, power resistors and LEDs are quantitatively and classifiedly packaged with accurate quantity and clear marking.
  • Connector / Aviation Connector Packaging: Hard outer packaging is adopted to prevent pin bending and structural deformation.

3. Custom Packaging Services

We provide value-added services including personalized packaging, custom labeling and re-reeling according to customer requirements, fully matching your production and warehouse management standards.

Contact Information

For service consultation or packaging customization, please feel free to contact us:
Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

Online Inquiry Form

Support Excel, PDF, CSV format files for full BOM list quotation

Submit your component procurement and custom packaging needs via the form below. We will provide a detailed quotation and professional solution within 1–8 working hours.

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