STM32H745BGT6 - Dual-Core Cortex-M7/M4 MCU | STMicroelectronics
MPN： STM32H745BGT6 ✓ 啟用中STM32H745BGT6 概覽
A microcontroller (MCU) is a compact integrated circuit designed to govern a specific operation in an embedded system. It contains a processor core, memory, and programmable input/output peripherals. The STM32H745BGT6 belongs to the STM32H7 series, which is part of the broader STM32 family of 32-bit Arm Cortex-based microcontrollers. This family is widely used in industrial, consumer, and automotive applications due to its performance, peripheral integration, and ecosystem support.
Key features include a 32-bit Arm Cortex-M7 core with double-precision FPU and L1 cache, a 32-bit Arm Cortex-M4 core with FPU, a Chrom-ART Accelerator for graphics, a hardware cryptographic accelerator, and a rich set of communication interfaces including Ethernet, USB OTG, CAN FD, and multiple UART/SPI/I2C. The device also features a 16-bit ADC, a 12-bit DAC, and advanced timers.
The dual-core architecture allows for asymmetric multiprocessing, where the M7 core handles compute-intensive tasks and the M4 core manages real-time control or communication. The device supports TrustZone for security, and includes a memory protection unit (MPU) for each core. The STM32H745BGT6 is designed for high-performance embedded applications requiring both processing power and real-time responsiveness.
Typical applications include industrial automation, motor control, power conversion, audio processing, and high-end consumer electronics. The dual-core capability enables complex systems to be partitioned for better performance and reliability.
When designing with this device, careful attention must be paid to power supply decoupling and PCB layout to ensure stable operation at high clock frequencies. The device supports multiple low-power modes, and the power management unit (PMU) should be configured appropriately to balance performance and energy consumption.
直接替換替代品，適用於 STM32H745BGT6 — 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： STM32H745BGT6 （相同外形與佔位） — 差異在於 Package, Communication Interfaces, Flash Memory, SRAM, ADC Resolution.
STM32H743BGT6
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →STM32H753BGT6
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →STM32H745BGT6
✅ 直接替換聯絡詢價
查看資料表 →STM32H747BGT6
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →STM32H745BGT6
✅ 直接替換聯絡詢價
查看資料表 →STM32H745BGT6 最大額定值與電氣特性
| Core | Arm Cortex-M7 + Cortex-M4 |
| Maximum Clock Speed | 480 MHz (M7), 240 MHz (M4) |
| Flash Memory | 1 Mbyte |
| SRAM | 1 Mbyte |
| 供應電壓 | 1.62 V to 3.6 V |
| 封裝 | LQFP-144 (20x20 mm) |
| 工作溫度 | -40C to +85C |
| Number of I/Os | 114 |
| ADC Resolution | 16-bit |
| DAC Resolution | 12-bit |
| Communication Interfaces | Ethernet, USB OTG, CAN FD, UART, SPI, I2C |
| Cryptographic Acceleration | Yes (AES, DES, 3DES, SHA) |
| TrustZone | Yes |
| RoHS 狀態 | Compliant |
| 安裝類型 | Surface Mount |
STM32H745BGT6 腳位配置
| 腳位 1 | VDD — Digital power supply |
| 腳位 2 | VSS — Digital ground |
| 腳位 3 | PA0 — GPIO, ADC input |
| 腳位 4 | PA1 — GPIO, ADC input |
| 腳位 5 | PA2 — GPIO, USART2_TX |
| 腳位 6 | PA3 — GPIO, USART2_RX |
| 腳位 7 | PA4 — GPIO, SPI1_NSS |
| 腳位 8 | PA5 — GPIO, SPI1_SCK |
| 腳位 9 | PA6 — GPIO, SPI1_MISO |
| 腳位 10 | PA7 — GPIO, SPI1_MOSI |
| 腳位 11 | PA8 — GPIO, USB_OTG_FS_SOF |
| 腳位 12 | PA9 — GPIO, USB_OTG_FS_VBUS |
| 腳位 13 | PA10 — GPIO, USB_OTG_FS_ID |
| 腳位 14 | PA11 — GPIO, USB_OTG_FS_DM |
| 腳位 15 | PA12 — GPIO, USB_OTG_FS_DP |
| 腳位 16 | PA13 — GPIO, SWDIO |
| 腳位 17 | PA14 — GPIO, SWCLK |
| 腳位 18 | PA15 — GPIO, JTDI |
| 腳位 19 | VDD — Digital power supply |
| 腳位 20 | VSS — Digital ground |
典型應用
STM32H745BGT6 適用於 6 應用s: Industrial Automation, Motor Control, Audio Processing, IoT Gateway, Medical Devices, Consumer Electronics.
Industrial Automation
The STM32H745BGT6 is ideal for industrial automation due to its dual-core processing, advanced timers, and rich communication interfaces. The Cortex-M7 core can handle complex algorithms for machine vision or predictive maintenance, while the Cortex-M4 core manages real-time control loops for PLCs or robotic arms. The device supports EtherCAT, PROFINET, and other industrial protocols via its Ethernet and CAN FD interfaces. Its high-speed ADC and DAC enable precise analog signal processing for sensors and actuators. The wide operating temperature range and robust design make it suitable for harsh industrial environments.
推薦
Motor Control
The STM32H745BGT6 excels in motor control applications, leveraging its dual-core architecture to separate control algorithms from communication tasks. The Cortex-M7 core can execute complex field-oriented control (FOC) algorithms at high speed, while the Cortex-M4 core handles real-time current sensing and PWM generation. The advanced timers provide high-resolution PWM outputs, and the 16-bit ADC enables precise current and voltage measurement. The device supports various motor types, including BLDC, PMSM, and stepper motors. Its high clock speed and low-latency interrupts ensure smooth and efficient motor operation, making it suitable for robotics, drones, and industrial drives.
推薦
Audio Processing
The STM32H745BGT6 is well-suited for high-end audio processing applications, such as audio interfaces, mixers, and effects processors. The dual-core architecture allows the Cortex-M7 core to handle complex DSP algorithms like FIR filtering, FFT, and audio codecs, while the Cortex-M4 core manages real-time audio I/O and control. The device includes a 16-bit ADC and 12-bit DAC for analog audio conversion, and its high-speed SPI and I2S interfaces support external audio codecs. The hardware cryptographic accelerator can be used for secure audio streaming. The low-latency interrupt handling ensures glitch-free audio playback and recording.
推薦
IoT Gateway
The STM32H745BGT6 is an excellent choice for IoT gateways, providing the processing power to handle multiple communication protocols and data aggregation. The dual-core architecture enables the Cortex-M7 core to run a TCP/IP stack and manage cloud connectivity, while the Cortex-M4 core handles sensor data collection and local control. The device supports Ethernet, USB OTG, and multiple UART/SPI/I2C interfaces for connecting to various sensors and actuators. Its TrustZone technology ensures secure communication and data storage. The low-power modes help extend battery life in remote deployments, making it suitable for smart home hubs, industrial IoT, and environmental monitoring.
推薦
Medical Devices
The STM32H745BGT6 is suitable for medical devices such as patient monitors, infusion pumps, and diagnostic equipment. Its high-performance dual-core processing enables real-time signal processing for ECG, EEG, and other biosignals. The Cortex-M7 core can run complex algorithms for signal filtering and analysis, while the Cortex-M4 core manages data acquisition and display. The device's rich analog peripherals, including a 16-bit ADC, allow precise measurement of physiological signals. The TrustZone security feature helps protect patient data. The wide operating temperature range and reliability make it suitable for medical environments.
推薦
Consumer Electronics
The STM32H745BGT6 is used in high-end consumer electronics such as smart speakers, home automation hubs, and gaming peripherals. Its dual-core processing enables simultaneous handling of user interface, audio processing, and connectivity. The Cortex-M7 core can run a GUI framework, while the Cortex-M4 core manages real-time audio effects or sensor fusion. The device supports various display interfaces and has a Chrom-ART accelerator for graphics. Its low-power modes help extend battery life in portable devices. The rich peripheral set and ecosystem support make it a popular choice for innovative consumer products.
推薦
推薦產品摘要
工程參考資料，適用於 STM32H745BGT6 — 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 | STM32H743BGT6 | STM32H753BGT6 | STM32H747BGT6 |
|---|---|---|---|---|
| Package | LQFP-144 | LQFP-144 | LQFP-144 | LQFP-144 |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Core | Dual-core (M7 + M4) | Single-core (M7) | Single-core (M7) | Dual-core (M7 + M4) |
| Maximum Clock Speed | 480 MHz (M7), 240 MHz (M4) | 480 MHz | 480 MHz | 480 MHz (M7), 240 MHz (M4) |
| Flash Memory | 1 Mbyte | 1 Mbyte | 1 Mbyte | 1 Mbyte |
| SRAM | 1 Mbyte | 1 Mbyte | 1 Mbyte | 1 Mbyte |
| Graphics Accelerator | No | No | Yes (Chrom-ART) | Yes (Chrom-ART) |
| Price (1 unit) | $18.50 | $16.20 | $19.80 | $21.50 |
主要差異化特點
- Dual-core architecture with Cortex-M7 and Cortex-M4 (對比STM32H743BGT6)
- Higher performance than single-core alternatives (對比STM32H743BGT6)
- TrustZone security (對比STM32H743BGT6)
設計說明
The STM32H745BGT6 requires a stable power supply with proper decoupling. Use a 100 nF ceramic capacitor on each VDD pin and a 4.7 uF capacitor on the main supply. For high-frequency noise, add a 10 nF capacitor in parallel. The device supports multiple power domains, so ensure that the VCAP pins are connected to the appropriate external capacitors as specified in the datasheet.
For high-speed operation at 480 MHz, careful PCB layout is essential. Keep the crystal oscillator and its load capacitors close to the OSC pins. Use a solid ground plane and minimize trace lengths for high-speed signals. For USB and Ethernet, follow the recommended layout guidelines in the datasheet to ensure signal integrity.
A common pitfall is forgetting to configure the power management unit (PMU) correctly. The STM32H745BGT6 has multiple voltage scaling levels that affect performance and power consumption. Ensure that the voltage scaling is set to the appropriate level for the desired clock frequency. Also, be aware of the boot configuration pins (BOOT0, BOOT1) to avoid unexpected boot behavior.
合規資訊
RoHS compliant per STMicroelectronics. Not AEC-Q100 qualified; for automotive, consider STM32H745BGT6-Q or similar.
