Overview
The STM32H755XIH3 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 Arm® single- and double-precision operations, along with a full set of DSP instructions and a memory protection unit (MPU) for enhanced security.
This microcontroller is equipped with high-speed embedded memories, including a dual-bank Flash memory of 2 Mbytes and up to 1 Mbyte of RAM. It also features an extensive range of enhanced I/Os and peripherals connected to APB, AHB buses, and a multi-layer AXI interconnect.
Key Specifications
| Parameter | Specification |
|---|---|
| Clock Frequency | Up to 480 MHz (Cortex®-M7), up to 240 MHz (Cortex®-M4) |
| Memory | 2 Mbytes of dual-bank Flash, up to 1 Mbyte of RAM (including 192 Kbytes of TCM RAM, up to 864 Kbytes of user SRAM, and 4 Kbytes of backup SRAM) |
| Package | TFBGA 240+25 (14x14 mm) |
| Operating Temperature | -40°C to 125°C |
| Supply Voltage | 1.62 to 3.6 V |
| Number of I/Os | Up to 168 I/O ports with interrupt capability |
| Analog Peripherals | 3x ADCs (16-bit, up to 36 channels), 2x DACs (12-bit), 2x ultra-low-power comparators, 2x operational amplifiers |
| Communication Interfaces | 4x I2Cs, 4x USARTs/UARTs, 6x SPIs, 4x SAIs, 2x CAN controllers (CAN FD and TT-CAN), 2x USB OTG, Ethernet MAC interface |
| Timers | 12x 16-bit timers, 2x 32-bit timers, 5x low-power timers, 1x high-resolution timer |
| Cryptographic Acceleration | AES, TDES, HASH (MD5, SHA-1, SHA-2), HMAC, True Random Number Generator |
Key Features
- Dual-core architecture with Arm® Cortex®-M7 and Cortex®-M4 cores, each with an FPU and support for DSP instructions
- High-speed embedded memories: 2 Mbytes of Flash and up to 1 Mbyte of RAM
- Extensive range of I/Os and peripherals, including multiple communication interfaces (I2C, USART, SPI, CAN, USB, Ethernet)
- Advanced analog peripherals: ADCs, DACs, comparators, operational amplifiers
- Low-power modes: Sleep, Stop, Standby, and VBAT with battery charging capability
- Security features: ROP, PC-ROP, active tamper, secure firmware upgrade support, and secure access mode
- Graphics capabilities: LCD-TFT controller up to XGA resolution, Chrom-ART graphical hardware Accelerator™, and Hardware JPEG Codec
Applications
- Industrial automation and control systems
- Medical devices requiring high performance and low power consumption
- Automotive systems, including advanced driver-assistance systems (ADAS)
- IoT and smart home devices
- High-performance consumer electronics
Q & A
- What are the core frequencies of the STM32H755XIH3?
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 STM32H755XIH3 have?
The device has 2 Mbytes of dual-bank Flash memory and up to 1 Mbyte of RAM.
- What is the operating temperature range of the STM32H755XIH3?
The operating temperature range is -40°C to 125°C.
- What are the key analog peripherals of the STM32H755XIH3?
The device includes 3x ADCs, 2x DACs, 2x ultra-low-power comparators, and 2x operational amplifiers.
- Does the STM32H755XIH3 support low-power modes?
Yes, it supports Sleep, Stop, Standby, and VBAT modes with battery charging capability.
- What security features are available on the STM32H755XIH3?
The device features ROP, PC-ROP, active tamper, secure firmware upgrade support, and secure access mode.
- What communication interfaces are available on the STM32H755XIH3?
The device includes I2C, USART, SPI, CAN, USB, and Ethernet interfaces.
- Does the STM32H755XIH3 have cryptographic acceleration?
Yes, it supports AES, TDES, HASH (MD5, SHA-1, SHA-2), HMAC, and a True Random Number Generator.
- What is the package type of the STM32H755XIH3?
The device is packaged in a TFBGA 240+25 (14x14 mm).
- Does the STM32H755XIH3 support graphics capabilities?
Yes, it includes an LCD-TFT controller up to XGA resolution, Chrom-ART graphical hardware Accelerator™, and a Hardware JPEG Codec.
