Overview
The STM32H745ZIT6 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 a floating-point unit (FPU) and support DSP instructions, enhancing the device's computational capabilities and security with a memory protection unit (MPU).
This microcontroller is designed for applications requiring high processing power, low power consumption, and a wide range of peripherals. It includes extensive memory options, advanced communication interfaces, and robust security features, making it suitable for complex embedded systems.
Key Specifications
| Parameter | Specification |
|---|---|
| Cores | Arm® Cortex®-M7 (up to 480 MHz) and Arm® Cortex®-M4 (up to 240 MHz) |
| Flash Memory | Up to 2 Mbytes with read-while-write support |
| RAM | Up to 1 Mbyte (192 Kbytes of TCM RAM, 864 Kbytes of user SRAM, and 4 Kbytes of backup SRAM) |
| ADCs | 3 ADCs with 16-bit max. resolution (up to 36 channels, up to 3.6 MSPS) |
| DACs | 2 × 12-bit DACs (1 MHz) |
| Timers | 12 × 16-bit timers, 2 × 32-bit timers |
| Communication Peripherals | 4 × I2Cs, 4 × USARTs/UARTs, 6 × SPIs, 2 × CAN controllers with CAN FD, 2 × USB OTG interfaces, Ethernet MAC interface |
| Power Supply | 1.62 to 3.6 V application supply and I/Os, low-power modes: Sleep, Stop, Standby, and VBAT |
| Operating Temperature | -40°C to 125°C |
Key Features
- Dual-core architecture with Arm® Cortex®-M7 and Cortex®-M4 cores, each with an FPU and DSP instructions.
- High-speed embedded memories: up to 2 Mbytes of flash memory and up to 1 Mbyte of RAM.
- Extensive range of peripherals including ADCs, DACs, timers, and communication interfaces (I2C, USART, SPI, CAN, USB, Ethernet).
- Advanced security features: ROP, PC-ROP, active tamper, and memory protection unit (MPU).
- Low-power modes: Sleep, Stop, Standby, and VBAT with battery charging capability.
- High power-efficiency SMPS step-down converter regulator and embedded regulator (LDO) for digital circuitry.
- Clock management with internal and external oscillators, and three PLLs with Fractional mode.
Applications
- Industrial automation and control systems.
- Medical devices requiring high processing power and low power consumption.
- Automotive systems, including advanced driver-assistance systems (ADAS) and vehicle control units.
- Consumer electronics, such as smart home devices and high-end appliances.
- IoT devices that require robust security and communication capabilities.
Q & A
- What are the core frequencies of the STM32H745ZIT6?
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 STM32H745ZIT6 have?
It has up to 2 Mbytes of flash memory and up to 1 Mbyte of RAM.
- What types of communication peripherals are available on the STM32H745ZIT6?
The device includes I2C, USART, SPI, CAN, USB, and Ethernet interfaces.
- Does the STM32H745ZIT6 support low-power modes?
Yes, it supports low-power modes such as Sleep, Stop, Standby, and VBAT with battery charging capability.
- What is the operating temperature range of the STM32H745ZIT6?
The operating temperature range is -40°C to 125°C.
- What security features are included in the STM32H745ZIT6?
The device includes ROP, PC-ROP, active tamper, and a memory protection unit (MPU).
- How many ADCs and DACs does the STM32H745ZIT6 have?
It has 3 ADCs with 16-bit max. resolution and 2 × 12-bit DACs.
- Does the STM32H745ZIT6 support external memory interfaces?
Yes, it supports Quad-SPI memory interface and flexible external memory controller for SRAM, PSRAM, SDRAM, and flash memory.
- What is the purpose of the SMPS step-down converter regulator in the STM32H745ZIT6?
The SMPS step-down converter regulator is used to directly supply V_CORE and/or external circuitry, enhancing power efficiency.
- Can the STM32H745ZIT6 be used in automotive applications?
Yes, it is suitable for automotive systems due to its robust features, including advanced communication interfaces and low power consumption.
