Overview
The STM32H745BIT6 is a high-performance microcontroller from STMicroelectronics, part of the STM32H745xI/G 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 high-speed embedded memories, extensive I/Os, and a wide range of peripherals, making it suitable for demanding applications requiring high performance and low power consumption.
Key Specifications
| Specification | Details |
|---|---|
| Cores | 32-bit Arm® Cortex®-M7 core (up to 480 MHz) and 32-bit Arm® Cortex®-M4 core (up to 240 MHz) |
| Memory | Up to 2 Mbytes of flash memory, 1 Mbyte of RAM (including 192 Kbytes of TCM RAM, 864 Kbytes of user SRAM, and 4 Kbytes of backup SRAM) |
| Power Supply | 1.62 to 3.6 V application supply and I/Os |
| Power Domains | 3 separate power domains (D1, D2, D3) which can be independently clock-gated or switched off |
| Communication Interfaces | Up to 35 communication peripherals including I2Cs, USARTs, SPIs, CAN controllers, USB OTG interfaces, and Ethernet MAC interface |
| Analog Peripherals | 3 ADCs, 2 DACs, 2 ultra-low power comparators, 2 operational amplifiers, and other analog interfaces |
| Timers | 22 timers and watchdogs including high-resolution timer, general-purpose timers, and advanced motor control timers |
| Package | LQFP 208 28x28x1.4 mm |
| Operating Temperature | -40°C to 125°C |
Key Features
- Dual-core architecture with Arm® Cortex®-M7 and Cortex®-M4 cores, each with FPU and DSP instructions.
- High-speed embedded memories with dual-bank flash and extensive RAM options.
- Extensive range of I/Os and peripherals connected to APB, AHB, and AXI buses.
- Advanced security features including ROP, PC-ROP, and active tamper detection.
- Low-power modes including Sleep, Stop, Standby, and VBAT modes with battery charging capability.
- High power-efficiency SMPS step-down converter and embedded regulator (LDO).
- Multiple communication interfaces such as I2Cs, USARTs, SPIs, CAN, USB, and Ethernet.
- Analog peripherals including ADCs, DACs, comparators, and operational amplifiers.
- Graphics capabilities with LCD-TFT controller and Chrom-ART graphical hardware accelerator.
Applications
The STM32H745BIT6 is suitable for a wide range of applications that require high performance, low power consumption, and advanced features. These include:
- Industrial automation and control systems.
- Medical devices requiring high precision and reliability.
- Automotive systems, especially those needing advanced motor control and communication interfaces.
- Consumer electronics that demand high processing power and low energy consumption.
- IoT devices that require robust security and multiple communication protocols.
Q & A
- What are the core frequencies of the STM32H745BIT6?
The Cortex®-M7 core operates at up to 480 MHz, and the Cortex®-M4 core operates at up to 240 MHz.
- How much memory does the STM32H745BIT6 have?
It has up to 2 Mbytes of flash memory and 1 Mbyte of RAM.
- What are the power supply requirements for the STM32H745BIT6?
The device operates with an application supply and I/Os ranging from 1.62 to 3.6 V.
- What kind of security features does the STM32H745BIT6 offer?
The device includes ROP, PC-ROP, and active tamper detection for enhanced security.
- What are the low-power modes available on the STM32H745BIT6?
The device supports Sleep, Stop, Standby, and VBAT modes with battery charging capability.
- How many communication interfaces does the STM32H745BIT6 have?
The device includes up to 35 communication peripherals such as I2Cs, USARTs, SPIs, CAN controllers, USB OTG interfaces, and Ethernet MAC interface.
- What are the analog peripherals available on the STM32H745BIT6?
The device includes 3 ADCs, 2 DACs, 2 ultra-low power comparators, and 2 operational amplifiers.
- Does the STM32H745BIT6 support graphics capabilities?
Yes, it includes an LCD-TFT controller and a Chrom-ART graphical hardware accelerator.
- What is the operating temperature range of the STM32H745BIT6?
The device operates from -40°C to 125°C.
- What is the package type of the STM32H745BIT6?
The device is available in an LQFP 208 28x28x1.4 mm package.
