Overview
The STM32H745IIT6 is a high-performance microcontroller from STMicroelectronics, part of the STM32H7 series. It is based on the dual-core architecture of the Arm® Cortex®-M7 and Cortex®-M4 32-bit RISC cores. The Cortex®-M7 core operates at up to 480 MHz, while the Cortex®-M4 core operates at up to 240 MHz. Both cores feature floating-point units (FPUs) and support Arm® single- and double-precision operations, along with a full set of DSP instructions and a memory protection unit (MPU) for enhanced security.
The device includes up to 2 Mbytes of flash memory with read-while-write support, 1 Mbyte of RAM, and a dual-mode Quad-SPI memory interface. It also features a wide range of peripherals, including multiple ADCs, DACs, timers, and communication interfaces such as USB, Ethernet, and CAN.
Key Specifications
| Parameter | Specification |
|---|---|
| Cores | 32-bit Arm® Cortex®-M7 and 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) |
| Memory Interface | Dual-mode Quad-SPI memory interface up to 133 MHz |
| Power Supply | 1.62 to 3.6 V application supply and I/Os |
| Package | LQFP 176 (24x24x1.4 mm) |
| Operating Temperature | -40°C to 125°C |
| Communication Interfaces | USB OTG, Ethernet, CAN, I2C, SPI, USART, etc. |
| Analog Peripherals | 3 ADCs, 2 DACs, 2 ultra-low power comparators, 2 operational amplifiers |
| Timers | 12 general-purpose 16-bit timers, 2 PWM timers, 5 low-power timers, 2 SysTick timers |
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 up to 2 Mbytes of flash memory and 1 Mbyte of RAM.
- Dual-mode Quad-SPI memory interface and flexible external memory controller.
- Extensive range of peripherals including ADCs, DACs, timers, and communication interfaces.
- Advanced security features such as ROP, PC-ROP, and active tamper detection.
- Low-power modes including Sleep, Stop, Standby, and VBAT supporting battery charging.
- High power-efficiency SMPS step-down converter regulator and voltage scaling in Run and Stop modes.
- Graphics capabilities including LCD-TFT controller and Chrom-ART graphical hardware accelerator.
Applications
The STM32H745IIT6 is suitable for a wide range of applications due to its high performance, extensive peripherals, and advanced security features. Some key applications include:
- Industrial automation and control systems.
- Medical devices requiring high precision and reliability.
- Automotive systems, including advanced driver-assistance systems (ADAS).
- IoT devices that require robust security and low power consumption.
- Consumer electronics such as smart home devices and wearables.
Q & A
- What are the core frequencies of the STM32H745IIT6?
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 STM32H745IIT6 have?
The device includes up to 2 Mbytes of flash memory and 1 Mbyte of RAM.
- What types of communication interfaces are available on the STM32H745IIT6?
The device features USB OTG, Ethernet, CAN, I2C, SPI, USART, and other communication interfaces.
- What are the power supply and operating temperature ranges of the STM32H745IIT6?
The device operates with a power supply of 1.62 to 3.6 V and an operating temperature range of -40°C to 125°C.
- Does the STM32H745IIT6 support low-power modes?
Yes, it supports low-power modes including Sleep, Stop, Standby, and VBAT supporting battery charging.
- What security features are included in the STM32H745IIT6?
The device includes advanced security features such as ROP, PC-ROP, and active tamper detection.
- What is the package type of the STM32H745IIT6?
The device is available in an LQFP 176 (24x24x1.4 mm) package.
- Does the STM32H745IIT6 have graphics capabilities?
Yes, it includes an LCD-TFT controller and a Chrom-ART graphical hardware accelerator.
- What types of analog peripherals are available on the STM32H745IIT6?
The device features 3 ADCs, 2 DACs, 2 ultra-low power comparators, and 2 operational amplifiers.
- How many timers does the STM32H745IIT6 have?
The device includes 12 general-purpose 16-bit timers, 2 PWM timers, 5 low-power timers, and 2 SysTick timers.
