Overview
The STM32H745XIH6U is a high-performance microcontroller from STMicroelectronics, part of the STM32H7 series. It features a dual-core architecture with a 32-bit Arm® Cortex®-M7 core and a 32-bit Arm® Cortex®-M4 core. The Cortex®-M7 core operates at up to 480 MHz, while the Cortex®-M4 core operates at up to 240 MHz. Both cores include floating-point units (FPUs) and support DSP instructions, enhancing the device's computational capabilities and security through a memory protection unit (MPU).
Key Specifications
| Parameter | Specification |
|---|---|
| Cores | 32-bit Arm® Cortex®-M7 and 32-bit Arm® Cortex®-M4 |
| Core Frequencies | Cortex®-M7: up to 480 MHz, Cortex®-M4: up to 240 MHz |
| Flash Memory | Up to 2 Mbytes with read-while-write support |
| RAM | 1 Mbyte (including 192 Kbytes of TCM RAM, 864 Kbytes of user SRAM, and 4 Kbytes of backup SRAM) |
| Quad-SPI Memory Interface | Dual mode, up to 133 MHz |
| External Memory Controller | Up to 32-bit data bus, supporting SRAM, PSRAM, SDRAM/LPSDR SDRAM, NOR/NAND flash memory |
| ADCs | Three 16-bit ADCs |
| DACs | Two 12-bit DACs |
| Timers | 12 general-purpose 16-bit timers, 2 general-purpose 32-bit timers |
| Communication Interfaces | Four I2Cs, six SPIs, four USARTs/UARTs, one LPUART, two CAN controllers, 100Mbps Ethernet (IEEE 1588) |
| Power Modes | Sleep, Stop, Standby, VBAT with battery charging capability |
| Power Consumption | 2.95 µA in Standby mode (Backup SRAM OFF, RTC/LSE ON) |
| Package | TFBGA240+25 (14x14 mm) |
Key Features
- Dual-core architecture with Arm® Cortex®-M7 and Cortex®-M4 cores, each with an FPU and DSP instructions.
- High-speed embedded memories including dual-bank flash memory and extensive SRAM options.
- Advanced communication interfaces such as I2Cs, SPIs, USARTs/UARTs, CAN controllers, and Ethernet.
- Multiple timers and PWM timers for motor control, along with low-power timers.
- Integrated op-amps, comparators, and a true random number generator (RNG).
- Support for various power modes and low-power consumption features.
- Clock management with internal and external oscillators and PLLs with fractional mode.
- Interconnect matrix and DMA controllers to optimize data transfer and reduce CPU load.
Applications
- Industrial automation and control systems.
- Medical devices requiring high computational power and low power consumption.
- Automotive systems, including advanced driver-assistance systems (ADAS) and infotainment.
- IoT devices that require robust communication and processing capabilities.
- Consumer electronics such as smart home devices and wearables.
- Motor control and power management systems.
Q & A
- What are the core frequencies of the STM32H745XIH6U?
The Cortex®-M7 core operates at up to 480 MHz, and the Cortex®-M4 core operates at up to 240 MHz.
- How much flash memory and RAM does the STM32H745XIH6U have?
It has up to 2 Mbytes of flash memory and 1 Mbyte of RAM, including 192 Kbytes of TCM RAM and 4 Kbytes of backup SRAM.
- What communication interfaces are available on the STM32H745XIH6U?
The device includes four I2Cs, six SPIs, four USARTs/UARTs, one LPUART, two CAN controllers, and a 100Mbps Ethernet interface.
- What are the power consumption characteristics of the STM32H745XIH6U?
The device consumes 2.95 µA in Standby mode (Backup SRAM OFF, RTC/LSE ON) and supports various low-power modes.
- What is the package type of the STM32H745XIH6U?
The device is packaged in TFBGA240+25 (14x14 mm).
- Does the STM32H745XIH6U support external memory?
Yes, it supports external memory through a flexible external memory controller with up to 32-bit data bus, including SRAM, PSRAM, SDRAM/LPSDR SDRAM, and NOR/NAND flash memory.
- What are the key security features of the STM32H745XIH6U?
The device includes a memory protection unit (MPU) and supports various security features like ROP and PC-ROP.
- Can the STM32H745XIH6U be used in industrial automation?
Yes, it is suitable for industrial automation due to its high-performance cores, extensive memory options, and robust communication interfaces.
- Does the STM32H745XIH6U support USB and Ethernet?
Yes, it supports USB OTG FS and HS, as well as a 100Mbps Ethernet interface with IEEE 1588 support.
- What development tools are available for the STM32H745XIH6U?
Development tools include the STM32H745I-DISCO and STM32H750B-DK Discovery kits, which provide a comprehensive platform for development and testing.
