Item specifics
Description
STM32H753IIT6 Product Overview
STM32H753IIT6 is a Cortex-M7 MCU at 480 MHz with double-precision FPU, LQFP-176. 2 MB dual-bank Flash, 1 MB SRAM, LCD-TFT controller (up to XGA), Chrom-ART accelerator (DMA2D), hardware JPEG codec, Ethernet MAC, USB OTG HS/FS (HS requires external ULPI PHY), CAN FD, advanced HW crypto (AES-128/192/256, 3DES, HASH incl. SHA-1/SHA-2, TRNG), dual Quad SPI, FMC (SDRAM), three 16-bit ADCs (5 Msps, 20 ch), two 12-bit DACs, two comparators, two op-amps, advanced motor control timers, GP/LP timers, RTC, 8×USART/UART, 5×SPI/I2S, 4×I2C, SDIO, SAI, SPDIF-Rx. Up to 140 x 5 V-tolerant I/Os. 1.62–3.6 V, -40–85 °C. Compared to the H743 series, the H753 offers a more comprehensive hardware security suite including SHA-2 hash algorithm, providing robust data protection for security-demanding graphics display, real-time control, and industrial networking applications.
STM32H753IIT6 Core Features
Core: Cortex-M7 480 MHz, DPFPU + L1 cache (16 KB I-cache + 16 KB D-cache)
Memory: 2 MB Dual-Bank Flash, 1 MB SRAM (incl. large DTCM and ITCM)
Graphics & Multimedia: LCD-TFT controller (up to XGA), Chrom-ART accelerator (DMA2D), HW JPEG codec
Connectivity: Ethernet MAC, USB OTG HS/FS (HS needs external ULPI PHY), CAN FD, SDIO, SAI, SPDIF-Rx, 8×USART/UART, 5×SPI/I2S, 4×I2C
Security: HW AES-128/192/256, 3DES, HASH (SHA-1/SHA-2/MD5), True Random Number Generator (TRNG)
Analog: 3×16-bit ADCs (5 Msps, 20 ch), 2×12-bit DACs, 2×Comparators, 2×Op-Amps
Motor Control: 2×Advanced Timers (PWM/Deadtime/Brake), multiple GP/LP timers
Memory Expansion: FMC (SDRAM/PSRAM/NOR/NAND), Dual Quad SPI
I/Os: 140 (5 V-tolerant)
Package: LQFP-176
Temperature Range: -40°C to 85°C
STM32H753IIT6 Applications
Secure Industrial HMI: Industrial touchscreens, graphical dashboards requiring data encryption
Real-Time Control & Secure Networking: Safety PLCs, servo drives, industrial Ethernet security gateways
Encrypted Communication & Data Protection: Secure communication nodes, financial POS terminals, data encryption terminals
Multimedia Processing: JPEG image processing, digital audio equipment
Portable Medical & Instrumentation: High-performance handheld devices requiring secure data acquisition
STM32H753IIT6 Key Advantages
480 MHz Cortex-M7 + DPFPU: Ultimate real-time processing and floating-point performance
2 MB Flash + 1 MB SRAM: Massive storage for complex code and large data buffers
LCD-TFT + Chrom-ART + JPEG: Full hardware graphics and image acceleration for smooth displays and fast image processing
Ethernet + CAN FD + Advanced Security: Single-chip for secure industrial networking, real-time communication, and robust data protection
SHA-2 Hash Algorithm Support: Meets higher security standards for data integrity and authentication
140 I/Os in LQFP-176 Package: Rich pin count, high integration for complex systems
Dual Quad SPI + FMC: Flexible external memory expansion
1.62–3.6 V Wide Supply: Adaptable to various power scenarios
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FAQ
1. The Cortex‑M7 core on the STM32H753IIT6 runs at up to 480 MHz. What performance leap does this represent over the STM32F4/F7 families?
The STM32H753 is built around a Cortex‑M7 core with double‑precision FPU and DSP extensions, delivering up to 1027 DMIPS and 2400 CoreMark at 480 MHz. This is several times the processing power of the STM32F4 (up to 180 MHz) or F7 (up to 216 MHz) series. Combined with 1 MB of on‑chip SRAM and large Flash, it can handle complex real‑time control, DSP, and graphics rendering on a single chip without external processors.
2. How is the 1 MB on‑chip SRAM organized, and what benefits does it bring for high‑speed computation and DMA?
The 1 MB SRAM is divided into multiple independent domains, including DTCM (Data Tightly Coupled Memory), ITCM (Instruction Tightly Coupled Memory), AXI SRAM, and several AHB SRAMs. DTCM and ITCM provide zero‑wait‑state CPU access for the most demanding real‑time tasks. The multi‑bank architecture allows DMA and CPU to access different memory regions simultaneously without blocking each other, greatly boosting throughput for high‑speed data acquisition, image processing, and audio streaming.
3. Does the STM32H753IIT6 include a Chrom‑ART graphics accelerator? What kind of display can it drive?
It includes the hardware Chrom‑ART (DMA2D) graphics accelerator, which is dedicated to accelerating 2D graphics operations such as fills, copies, blending, and pixel‑format conversion. Paired with the on‑chip TFT‑LCD controller, it can directly drive a 24‑bit RGB display at resolutions up to 1024×768, delivering smooth user interfaces and animations. Chrom‑ART performs graphics tasks without loading the CPU, freeing the Cortex‑M7 to focus on core application logic—ideal for industrial HMIs, smart‑home panels, and instrumentation.
4. What external memory types can be connected via the dual Quad SPI and FMC parallel interfaces?
The dual Quad SPI interfaces support up to 200 MHz DDR mode and can connect high‑speed NOR Flash or HyperRAM for code execution, data storage, or graphics asset buffering. The Flexible Memory Controller (FMC) can interface with parallel NOR/NAND Flash, SDRAM, and even TFT displays. These high‑bandwidth memory interfaces allow designers to flexibly balance on‑chip and off‑chip storage to meet different capacity and speed requirements.
5. What advanced security features are integrated? Does it support secure boot and firmware protection?
It is equipped with a hardware true‑random‑number generator (TRNG), AES‑256, SHA‑1/SHA‑2, and HMAC hardware accelerators for efficient encryption and hashing. Additionally, the chip supports secure boot from external Flash, combined with readout protection (RDP) and a Memory Protection Unit (MPU), to establish a complete chain of trust from silicon to application. This makes it an excellent choice for security‑sensitive applications such as IoT gateways and payment terminals.
6. What high‑speed communication interfaces does the STM32H753 offer? Can Ethernet, USB, and CAN FD be used simultaneously?
It integrates a 10/100M Ethernet MAC (with IEEE 1588 precision time protocol), a USB 2.0 OTG high‑speed controller (up to 480 Mbps), and multiple FDCAN (Flexible Data‑Rate CAN) controllers. All of these can operate concurrently without conflicts, making it well‑suited for industrial gateways, vehicle data loggers, and distributed control systems that require multi‑protocol networking. The Ethernet MAC also supports DMA transfers to significantly reduce CPU overhead.
7. How capable are the built‑in 12‑bit ADC and 12‑bit DAC? Can they meet the demands of high‑speed control loops?
It features up to three 12‑bit successive‑approximation ADCs with a maximum sampling rate of 5 Msps, supporting interleaved mode to boost the effective sampling rate even further. Together with two 12‑bit DACs, they form a complete digital control loop. Both ADCs and DACs can be tightly coupled with timers via DMA for precisely timed triggering and automatic data transfer, making them ideal for motor control, digital power, and audio processing applications that require high accuracy and low latency.
8. What about power consumption and thermal performance? Is it suitable for long‑term operation in industrial temperature ranges?
This chip is specified for the commercial temperature range (0 °C–85 °C). At 480 MHz full load, power consumption typically ranges from a few hundred milliwatts to around 1 W. With proper PCB thermal design—such as using the exposed thermal pad and copper pours—stable operation can be maintained without an external fan or heatsink. For applications that require higher junction temperatures or extreme environments, industrial‑grade or high‑temperature variants from the STM32H7 family can be selected.
9. What software tools are needed to develop for the STM32H753, and is it compatible with previous STM32 ecosystems?
It is fully compatible with the STM32Cube ecosystem, including the free STM32CubeMX graphical configuration tool, STM32CubeIDE integrated development environment, and the feature‑rich STM32CubeH7 firmware package. When migrating from STM32F4 or F7, a large portion of HAL code can be reused, with the main adjustments being peripheral configuration and memory mapping. ST also provides extensive example projects and middleware such as FreeRTOS, LWIP, and FatFS to accelerate project development.
10. If I need even more memory or a higher security level, what upgrade options are available?
If 2 MB of Flash or 1 MB of SRAM is insufficient, you can upgrade to the pin‑compatible STM32H750, which offers larger SRAM and supports code execution from external Quad SPI Flash. For higher security requirements, consider models within the STM32H7 family that include enhanced cryptographic accelerators and Secure Firmware Installation (SFI). All these migration paths stay within the same STM32Cube ecosystem, enabling seamless reuse of the vast majority of your code.