STM32F439IIT6 - 180MHz Cortex-M4 MCU | ST | Industrial
料号： STM32F439IIT6 ✓ 量产中STM32F439IIT6 概述
A microcontroller is a programmable integrated circuit containing a processor core, memory, peripherals, and interface controllers on one semiconductor device. The STM32F4 series belongs to the hierarchy of 32-bit RISC microcontroller, Arm Cortex-M4 processor, embedded control IC, and semiconductor. The Cortex-M4 architecture combines deterministic instruction execution with efficient digital signal processing, making it suitable for connected industrial equipment, control panels, communications equipment, and human-machine interfaces.
The STM32F439IIT6 provides 2 MB of Flash memory, 225 DMIPS of processing performance, and an Arm Cortex-M4 core operating up to 180 MHz. Its integrated connectivity includes Ethernet, USB OTG, and an LCD-TFT controller. These functions reduce the need for discrete communication and display interface components while supporting firmware-intensive networking, graphics, data acquisition, and supervisory-control applications.
The device supports 3.3 V and 5 V supply arrangements identified for this part, while its Arm Cortex-M4 processor includes a single-precision FPU and a complete set of DSP instructions. The 176-pin LQFP package exposes substantially more I/O than smaller microcontroller packages, supporting simultaneous peripheral connections and external memory or display interfaces. Exact pin functions, memory-map details, and electrical limits should be assigned from the STMicroelectronics pin-description table in datasheet DM00077036.
Typical uses include industrial Ethernet gateways, USB-connected data loggers, programmable logic controllers, motor and process controllers, medical monitoring equipment, and TFT-based human-machine interfaces. The 180 MHz core and DSP capability support real-time control loops, protocol processing, and signal filtering, while the large Flash capacity accommodates networking stacks, graphical interfaces, and field-upgradeable application firmware.
The primary design consideration is PCB density around the 176-pin LQFP footprint. Place decoupling capacitors at each appropriate supply pin, route high-speed communications away from sensitive analog inputs, and use solid ground-plane continuity beneath the device. Confirm oscillator, reset, boot, and programming interfaces against the manufacturer datasheet before schematic release or PCB layout.
This page consolidates the manufacturer specifications, exact-source pricing eligibility, same-package replacement analysis, interface comparisons, and practical design guidance needed to evaluate the STM32F439IIT6 for a new embedded platform.
直接替换替代料： STM32F439IIT6 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： STM32F439IIT6 （相同外形与封装尺寸） ——差异在于 Package, SRAM, Flash Memory, Mounting Type, ADC.
STM32F429IIT6
✅ 直接替换✗ 无现货
$8.3523 / 个
查看数据手册 →STM32F437IIT6
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →STM32F479IIT6
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →STM32F446IIT6
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
STM32F427IIT6
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →STM32F439IIT6 最大额定值与电气特性
| Product Type | 32-bit RISC microcontroller |
| Processor Core | Arm Cortex-M4 |
| 最大时钟频率 | 180 MHz |
| Word Size | 32 bit |
| Embedded Flash Memory | 2 MB (2M x 8 bit) |
| Performance | 225 DMIPS |
| Floating-Point Unit | Single precision |
| DSP Support | Arm Cortex-M4 DSP instruction set |
| 电源电压 | 3.3 V or 5 V |
| Ethernet Interface | Integrated Ethernet |
| USB Interface | USB OTG |
| Display Controller | Integrated LCD-TFT controller |
| Package Type | 176-pin LQFP |
| Package Dimensions | 24 mm x 24 mm |
| 安装类型 | Surface mount |
| RoHS Compliance | Compliant |
STM32F439IIT6 24 mm x 24 mm 引脚配置指南
STM32F439IIT6（24 mm x 24 mm 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： STM32F439IIT6.
请参阅 数据手册 以查看完整引脚配置。
典型应用
STM32F439IIT6 适用于 6 应用s: Industrial Ethernet Gateway, USB Data Logger, TFT Human-Machine Interface, Programmable Logic Controller, Medical Monitoring Equipment, Motor and Process Controller.
Industrial Ethernet Gateway
The STM32F439IIT6 fits an industrial Ethernet gateway because its 180 MHz Arm Cortex-M4 core provides deterministic processing capacity for protocol handling, local data collection, and supervisory logic. The integrated Ethernet block reduces the component count of a connected controller while 2 MB of Flash supports a TCP/IP stack, management services, and application firmware. Deploy the MCU on a multilayer PCB with a controlled-impedance Ethernet route, isolated magnetics or PHY interface where required, and separate analog and digital return paths to preserve signal integrity.
推荐
USB Data Logger
The STM32F439IIT6 is appropriate for a USB-connected data logger because USB OTG, 2 MB of Flash, and the 180 MHz Cortex-M4 core support buffering, file management, and high-rate sensor acquisition. Its DSP instructions can accelerate filtering and fixed-point processing, while the single-precision FPU supports control calculations without forcing software emulation. Keep USB routing away from analog inputs, use controlled-impedance routing for high-speed signals, and provide local decoupling at each regulator to prevent acquisition noise from appearing on the data bus.
推荐
TFT Human-Machine Interface
The STM32F439IIT6 supports a TFT human-machine interface by combining its LCD-TFT controller with a 180 MHz Cortex-M4 processor and 2 MB of Flash. The processor can update graphical content while the integrated display interface handles panel transactions, and the DSP capability supports responsive touch and control-loop processing. Match the MCU voltage level to the panel interface, route display signals away from switching supplies, and validate timing through the manufacturer LCD-TFT controller configuration and memory requirements.
推荐
Programmable Logic Controller
The STM32F439IIT6 is suitable for a programmable logic controller because its 180 MHz Cortex-M4 core, DSP instructions, extensive 176-pin I/O, and 2 MB Flash support deterministic machine control and configurable I/O expansion. Ethernet and USB OTG allow programming, diagnostics, and supervisory connectivity without multiple discrete interface controllers. Use short return paths for digital inputs, segregate relay and power-stage currents, and confirm all pin multiplexing and timing assignments against the STMicroelectronics reference manual and datasheet.
推荐
Medical Monitoring Equipment
The STM32F439IIT6 can serve as the control processor in medical monitoring equipment when its 180 MHz performance, DSP support, and 2 MB of Flash are needed for sensor acquisition, filtering, and a local user interface. The FPU assists with control calculations, while Ethernet and USB OTG enable encrypted data transfer and configuration workflows. Patient-connected circuits require separate isolation, protection, and safety architecture; this MCU should remain separated from direct patient-contact circuitry unless the complete system has been appropriately designed and validated.
推荐
Motor and Process Controller
The STM32F439IIT6 fits real-time motor and process control when the design benefits from its 180 MHz Cortex-M4 core, single-precision FPU, DSP instructions, and high I/O count. It can execute control loops while handling communications and supervisory tasks, and its 2 MB Flash provides room for parameter tables and application logic. Keep power-stage switching nodes separated from the MCU, use dedicated gate drivers and current sensing, and validate control timing and analog noise margins against the application’s operating conditions.
推荐
推荐产品汇总
工程参考数据： STM32F439IIT6 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | STM32F429IIT6 | STM32F437IIT6 | STM32F479IIT6 | STM32F446IIT6 | STM32F427IIT6 |
|---|---|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Package | 176-pin LQFP (24x24 mm) | 176-pin LQFP (24x24 mm) | 176-pin LQFP (24x24 mm) | 176-pin LQFP (24x24 mm) | 176-pin LQFP (24x24 mm) | 176-pin LQFP (24x24 mm) |
| Processor Core | Arm Cortex-M4 | Arm Cortex-M4 | Arm Cortex-M4 | Arm Cortex-M4 | Arm Cortex-M4 | Arm Cortex-M4 |
| Maximum Clock Frequency | 180 MHz | 180 MHz | 180 MHz | 180 MHz | 180 MHz | 180 MHz |
| Embedded Flash Memory | 2 MB | 2 MB | 2 MB | 2 MB | 128 KB | 256 KB |
| Ethernet Interface | Integrated Ethernet | Not available | Not available | Integrated Ethernet | Not available | Not available |
| USB Interface | USB OTG | USB OTG | USB OTG | USB OTG | USB OTG | USB OTG |
| LCD-TFT Controller | Integrated LCD-TFT controller | Integrated LCD-TFT controller | Integrated LCD-TFT controller | Integrated LCD-TFT controller | Integrated LCD-TFT controller | Integrated LCD-TFT controller |
| FPU | Single precision | Single precision | Single precision | Single precision | Single precision | Single precision |
关键差异点
- Integrated Ethernet in the 176-pin LQFP STM32F4 configuration （对比 STM32F429IIT6)
- Higher Flash capacity for network stacks and field firmware （对比 STM32F446IIT6)
- Larger local memory than the STM32F427IIT6 alternative （对比 STM32F427IIT6)
设计说明
Treat the 176-pin LQFP as a high-density mixed-signal layout. Follow the STMicroelectronics pin-definition table and package drawing for every power, ground, alternate-function, and debug connection. Place the required bypass capacitors adjacent to their supply pins with short ground returns, keep switching-node copper away from analog inputs, and maintain a continuous ground reference beneath the device where the recommended layout permits it.
Route Ethernet, USB, and other high-speed interfaces as controlled-impedance nets with continuous reference planes, short vias, and avoidance of right-angle transitions. Place Ethernet isolation or PHY circuitry according to the selected network architecture, and keep clock lines away from Ethernet magnetics and switching regulators. Validate signal integrity with the actual layer stack-up, connector, PHY, and cable configuration rather than relying only on nominal interface timing.
Do not treat the STM32F429IIT6 or STM32F437IIT6 as fully transparent substitutes for the STM32F439IIT6 when Ethernet is used. The missing Ethernet block can affect pin assignments, firmware initialization, clock configuration, driver selection, and board testing. Perform a peripheral-by-peripheral design review, rebuild the project for the selected device, and run communication, timing, brownout, and peripheral regression tests before releasing the substitution.
合规信息
RoHS compliance is identified for STM32F439IIT6. Other environmental and material declarations are not established by the available manufacturer and distributor records. AEC-Q100 status is recorded as not applicable because the part is not identified as an automotive-qualified ordering code.