The new STM32H723/733, STM32H725/735, and STM32H730 Value-Line MCUs are built on the Arm® Cortex®-M7 core and operate at 550 MHz. This is the fastest core speed in the market among MCUs with integrated on-chip Flash storage for embedded applications. These single-core devices are available with up to 1 Mbyte of Flash and deliver increased performance with affordability for cost-conscious applications.
This new STM32H7 series includes two product line groups:
Single-core lines: The single-core Cortex®-M7 offers either great performance at 550 MHz or a unique combination of performance and power saving at 280 MHz and 34 µA (typ) in STOP mode.
• STM32H723/733: 550 MHz, TFT-LCD, Ethernet, dual Octo-SPI with on-the-fly decryption
• STM32H725/735: 550 MHz, TFT-LCD, Ethernet, dual Octo-SPI with on-the-fly decryption, SMPS
Value lines: With an embedded 128 Kbytes Flash memory, the STM32H750/B0 MCUs are cost-effective STM32H7 devices.
• STM32H730: 550 MHz, 128 Kbytes of Flash, 564 Kbytes RAM, Ethernet, dual Quad-SPI, SMPS on some versions
STM32H733/723/735/725/730 Product Lines Summary
| Cortex®-M7 |
Core, Memories and acceleration • Single core Cortex-M7 550MHz • Flash and RAM acceleration • RAM re-map capability • DP-FPU • 4xDMA Connectivity • 1 x USB2.0 OTG FS/HS • 2xSDMMC • USART, UART, SPI,I2C • 3xCAN (2xFD and 1xTT) • HDMI-CEC • FMC, Dual OctoSPI • Ethernet MAC IEEE1588 • Camera I/F • Analog (comp, AOP) Audio • 4 x I2S + audio PLL • 2 x SAI • 2 x 12-bit DAC • SPDIF-RX Graphic • TRT-LCD controller • Chrom-ART AcceleratorTM Others • Crypto/Hash (*) • Security services : SFI and SBSFU (*) • TRNG • DFSDM • 16 and 32-bit timers • 2 x 16-bit ADC (up to 3.6 Msps) • 1 x 12-bit ADC (up to 5Msps) • Mathematical acceleration • Voltage range 1.62 to 3.6V • SMPS and LDO • Multi power domains |
Product Line | FCPU | SB FLASH (bytes) | RAM (KB) | Power Supply | T° Range |
| STM32H725 and STM32H735 (*) | 550 | Up To 1MB | 564 (incl. 128K DTCM, 432KB Syst + 4K bckup) | SMPS(****) + LDO | Standard 85°C (125°C Optional | ||
| STM32H723 and STM32H733 (*) | 550 | Up To 1MB | 564 (incl. 128K DTCM, 432KB Syst + 4K bckup) | LDO | Standard 85°C | ||
| STM32H730 STM32H730Q 
|
550 | 128K | 564 (incl. 128K DTCM, 432KB Syst + 4K bckup) | SMPS(***) + LDO | Standard 85°C |
These devices can also interact with off-chip storage while ensuring full execution performance and security. Their benchmark performance figures of 2778 CoreMark®1 and 1177 DMIPS are realized whether working from internal or external memory, aided by features such as the Flexible Memory Controller (FMC) and Octal SPI memory interface. This allows designers to tackle memory-hungry applications that demand a large frame buffer—including high-resolution, full-color graphics and video— to create new products that deliver more sophisticated and immersive user experiences.
Further assisting the creation of full-color user interfaces, the TouchGFX graphic framework STM32Cube Expansion Package (X-CUBE-TOUCHGFX) and TouchGFX Designer programming tool are available free of charge.
Advanced features powered by AI technology can be developed thanks to STM32Cube ecosystem and STM32Cube.AI (X-CUBE-AI) to port neural networks and leverage computer vision through the parallel camera interface. By connecting the STM32H7 to one or multiple sensors, condition monitoring and other machine learning techniques will also help bringing added value to the STM32-based product.
As part of the STM32Trust security suite, cyber-protection is enhanced with support for on-the-fly decryption (OTFDEC) and secure firmware install (SFI). OTFDEC enables encrypted code to be executed from external memory. SFI lets OEMs order standard products anywhere in the world, to be programmed only with encrypted code. These two solutions effectively safeguard OEM intellectual property in Flash memory. Out-of-the-box security features include support for secure boot, symmetric (by hardware or software library) encryption, and cryptographic key provisioning. Asymmetric encryption (by software library) is also available. Cryptographic processing is handled with a true random number generator, hardware acceleration for AES-128, AES-192 and AES-256 encryption, and support for GCM and CCM , Triple DES, and hash (MD5, SHA-1 and SHA-2) algorithms.
Several key features deliver important advantages in industrial applications, including an integrated switched-mode power supply (SMPS) that overcomes dissipation constraints to allow extended-temperature operation up to 125°C. In addition, fault-resilience is provided through error correction (ECC) for all memories.
Flexible prototyping and demonstrations can leverage the STM32H735G-DK Discovery kit, while the NUCLEO-H723ZG Nucleo-144 board provides an affordable option for quickly building prototypes and proof-of-concept models. The latest STM32H7 MCUs are also supported in the STM32Cube ecosystem, which comprises tools, embedded software, and middleware including graphics libraries, communication stacks, and application-code examples such as motor control, AI, and advanced security.
Shop STM32H735G-DK Discovery Kit
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