Overview
The STM32H745IIK3 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, making them suitable for demanding applications requiring high processing power and efficiency.
Key Specifications
| Specification | Details |
|---|---|
| Cores | Dual 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: 192 Kbytes of TCM RAM, 864 Kbytes of user SRAM, and 4 Kbytes of backup SRAM |
| Memory Interfaces | Dual mode Quad-SPI memory interface up to 133 MHz, Flexible external memory controller with up to 32-bit data bus |
| Power Supply | 1.62 to 3.6 V application supply and I/Os |
| Power Domains | 3 separate power domains (D1, D2, D3) with independent clock-gating or switch-off capability |
| Low-Power Modes | Sleep, Stop, Standby, and VBAT supporting battery charging |
| Communication Peripherals | Up to 35 interfaces including I2C, USART, SPI, CAN, USB, Ethernet, and more |
| Analog Peripherals | 3x ADCs, 2x DACs, 2x ultra-low-power comparators, 2x operational amplifiers |
| Timers and Watchdogs | Up to 22 timers and watchdogs including high-resolution timer and motor control timers |
| Graphics and Display | LCD-TFT controller up to XGA resolution, Chrom-ART graphical hardware Accelerator, Hardware JPEG Codec |
Key Features
- Dual-Core Architecture: Combines the performance of Arm® Cortex®-M7 and Cortex®-M4 cores.
- High-Performance Processing: Cortex®-M7 core with double-precision FPU and L1 cache, operating up to 480 MHz.
- Memory and Storage: Up to 2 Mbytes of flash memory and 1 Mbyte of RAM with various memory interfaces.
- Power Efficiency: Multi-power domain architecture, high power-efficiency SMPS, and low-power modes.
- Security Features: ROP, PC-ROP, active tamper, and secure firmware install/update capabilities.
- Communication and Interfaces: Extensive range of communication peripherals including USB, Ethernet, CAN, and more.
- Analog and Digital Peripherals: Multiple ADCs, DACs, comparators, operational amplifiers, and timers.
- Graphics and Display: LCD-TFT controller, Chrom-ART graphical hardware Accelerator, and Hardware JPEG Codec.
Applications
The STM32H745IIK3 is versatile and can be used in a variety of applications, including:
- Industrial Automation: Motor control, power management, and communication in industrial environments.
- Medical Devices: High-performance processing for medical imaging, diagnostics, and patient monitoring.
- Automotive Systems: Advanced driver-assistance systems (ADAS), infotainment, and vehicle control units.
- Consumer Electronics: Smart home devices, wearables, and other consumer electronics requiring high processing power and low power consumption.
- Aerospace and Defense: Secure and high-reliability applications in aerospace and defense sectors.
Q & A
- What are the core frequencies of the STM32H745IIK3?
The Cortex®-M7 core operates up to 480 MHz, and the Cortex®-M4 core operates up to 240 MHz. - How much flash and RAM does the STM32H745IIK3 have?
Up to 2 Mbytes of flash memory and 1 Mbyte of RAM. - What are the power supply requirements for the STM32H745IIK3?
The application supply and I/Os range from 1.62 to 3.6 V. - Does the STM32H745IIK3 support low-power modes?
Yes, it supports Sleep, Stop, Standby, and VBAT modes with battery charging capability. - What security features are included in the STM32H745IIK3?
ROP, PC-ROP, active tamper, and secure firmware install/update capabilities. - What types of communication peripherals are available on the STM32H745IIK3?
Up to 35 interfaces including I2C, USART, SPI, CAN, USB, Ethernet, and more. - Does the STM32H745IIK3 have analog peripherals?
Yes, it includes 3x ADCs, 2x DACs, 2x ultra-low-power comparators, and 2x operational amplifiers. - What is the maximum resolution of the LCD-TFT controller?
Up to XGA resolution. - Does the STM32H745IIK3 support JPEG encoding and decoding?
Yes, it includes a Hardware JPEG Codec. - What is the maximum temperature range for the STM32H745IIK3?
Optional extended ambient temperature range up to 125 °C.
