Overview
The STM32H755IIK6 is a high-performance microcontroller from STMicroelectronics, based on the dual-core architecture of the Arm® Cortex®-M7 and Cortex®-M4 32-bit RISC cores. This device is designed to offer exceptional processing capabilities, extensive memory, and a wide range of peripherals and interfaces. The Cortex®-M7 core operates at up to 480 MHz, while the Cortex®-M4 core operates at up to 240 MHz, both featuring floating-point units (FPUs) and memory protection units (MPUs) to enhance application security and performance.
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 | 2 Mbytes with read-while-write support |
| RAM | 1 Mbyte (192 Kbytes of TCM RAM, 864 Kbytes of user SRAM, 4 Kbytes of backup SRAM) |
| Memory Interface | Dual mode Quad-SPI memory interface up to 133 MHz, flexible external memory controller 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 and power-off capability |
| Low-Power Modes | Sleep, Stop, Standby, and VBAT with battery charging support |
| Timers | 22 timers including high-resolution timer, general-purpose timers, and low-power timers |
| Communication Interfaces | Multiple I2Cs, USARTs, SPIs, SAIs, CAN controllers, USB OTG, Ethernet MAC, and more |
| Analog Peripherals | 3 ADCs, 2 DACs, ultra-low power comparators, operational amplifiers, and a temperature sensor |
| Cryptographic Acceleration | AES, HASH (MD5, SHA-1, SHA-2), HMAC, true random number generator |
| Package Options | UFBGA 176+25, LQFP 176 |
Key Features
- Dual-core architecture with Arm® Cortex®-M7 and Cortex®-M4 cores, each with an FPU and MPU.
- High-speed embedded memories including 2 Mbytes of Flash and 1 Mbyte of RAM.
- Extensive range of peripherals and interfaces such as ADCs, DACs, timers, and communication interfaces (I2C, USART, SPI, CAN, USB, Ethernet).
- Advanced security features including ROP, PC-ROP, active tamper, secure firmware upgrade support, and secure access mode.
- Low-power modes and power management capabilities with three separate power domains and a high power-efficiency SMPS step-down converter regulator.
- Cryptographic acceleration for AES, HASH, HMAC, and true random number generation.
- Graphics capabilities with LCD-TFT controller and Chrom-ART graphical hardware accelerator.
- Debug mode with SWD & JTAG interfaces and a 4-Kbyte Embedded Trace Buffer.
Applications
- Industrial automation and control systems.
- Medical devices requiring high processing power and low power consumption.
- Aerospace and defense applications needing robust security and reliability.
- Automotive systems, including advanced driver-assistance systems (ADAS) and infotainment.
- IoT devices that require a balance of performance and power efficiency.
- Consumer electronics such as smart home devices and wearables.
Q & A
- What are the core frequencies of the STM32H755IIK6?
The Cortex®-M7 core operates at up to 480 MHz, and the Cortex®-M4 core operates at up to 240 MHz.
- How much Flash and RAM does the STM32H755IIK6 have?
The device has 2 Mbytes of Flash memory and 1 Mbyte of RAM, including 192 Kbytes of TCM RAM and 864 Kbytes of user SRAM.
- What are the power supply and voltage ranges for the STM32H755IIK6?
The device operates with an application supply and I/Os ranging from 1.62 to 3.6 V.
- What are the low-power modes supported by the STM32H755IIK6?
The device supports Sleep, Stop, Standby, and VBAT modes with battery charging capability.
- What cryptographic acceleration does the STM32H755IIK6 offer?
The device includes cryptographic acceleration for AES, HASH (MD5, SHA-1, SHA-2), HMAC, and a true random number generator.
- What are the package options available for the STM32H755IIK6?
The device is available in UFBGA 176+25 and LQFP 176 packages.
- Does the STM32H755IIK6 support Ethernet communication?
Yes, the device includes an Ethernet MAC interface with DMA controller.
- What is the maximum resolution of the ADCs in the STM32H755IIK6?
The ADCs have a maximum resolution of 16 bits.
- Does the STM32H755IIK6 have any graphics capabilities?
Yes, it includes an LCD-TFT controller and a Chrom-ART graphical hardware accelerator.
- What debug interfaces are available on the STM32H755IIK6?
The device supports SWD & JTAG interfaces and has a 4-Kbyte Embedded Trace Buffer.
