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The high performance STM32H743/753 MCU line from STMicroelectronics offer the performance of the Cortex-M7 core running up to 400 MHz. Combined with a smart architecture based on a multipower domain, developers can always use the best configuration to optimize data transfers and CPU load while staying gentle on the power budget when needed. The embedded hardware accelerators and the extensive digital and analog peripheral set make the STM32H743/753 very well suited for industrial applications where fast reaction time is key or HMI applications where the graphic and audio support will allow an unprecedented user experience with an embedded microcontroller.

Smart architecture with new generation of peripherals set

The STM32H7 series unleashes the Cortex-M7 core:

• AXI and multi-AHB bus matrixes for interconnecting core, peripherals and memories
• 16 Kbytes +16 Kbytes of I-cache and D-cache
• Up to 2 Mbytes of embedded dual-bank Flash memory, with ECC and Read-While-Write capability
• A high-speed master direct memory access (MDMA) controller, two dual-port DMAs with FIFO and request router capabilities for optimal peripheral management, and one additional DMA
• Chrom-ART acceleration for efficient 2D image copy and double-precision FPU are also part of the acceleration features available in the device
• Peripheral speed independent from CPU speed (dual-clock support) allowing system clock changes without any impact on peripheral operations
• Even more peripherals, such as four serial audio interfaces (SAI) with SPDIF output support, three full-duplex I²S interfaces, a SPDIF input interface supporting four inputs, two USB OTG with dedicated power supply and Dual-mode Quad-SPI interface, two FD-CAN controllers, a high-resolution timer, a TFT-LCD controller, a JPEG codec, two SDIO interfaces and many other analog peripherals including three fast 14-bit ADCs, two comparators and two operational amplifiers
• 1 Mbyte of SRAM with a scattered architecture:
  • 192 Kbytes of TCM RAM (including 64 Kbytes of ITCM RAM and 128 Kbytes of DTCM RAM for time-critical routines and data), 512 Kbytes, 288 Kbytes and 64 Kbytes of user SRAM, and 4 Kbytes of SRAM in backup domain to keep data in the lowest power modes

Performance

At 400 MHz f_CPU, the STM32H743/753 lines deliver 2020 CoreMark /856 DMIPS performance executing from Flash memory, with 0-wait states thanks to its L1 cache. The DSP instructions and the double-precision FPU enlarge the range of addressable applications. External memory can be used with no performance penalty thanks to the L1 cache (16 Kbytes +16 Kbytes of I-cache and D-cache).

Security

Authenticate and protect your software IP while performing initial programming or firmware upgrades in the field

Power efficiency:

• The multi-power domains architecture allows the different power domains to be set in low-power mode to optimize the power efficiency. In addition to the main regulator featuring voltage scaling to supply the core in different voltage ranges during Run and Stop modes, the device also embeds a USB regulator to supply the embedded physical layer (PHY) and a backup regulator.
• 278 µ/MHz typical @VDD = 3.3 V and 25 °C in Run mode (peripherals off)
• 7 µA in Standby mode (low-power mode)

Graphics

The new LCD-TFT controller interface with dual-layer support takes advantage of the Chrom ART Accelerator™. This graphics accelerator creates content twice as fast as the core alone. As well as efficient 2-D raw data copy, additional functions are supported by the Chrom-ART Accelerator such as image format conversion or image blending (image mixing with some transparency). As a result, the Chrom-ART Accelerator boosts graphics content creation and saves the processing bandwidth of the MCU core for the rest of the application. In addition, the STM32H743/753 lines embed a JPEG hardware accelerator for fast JPEG encoding and decoding, off-loading the CPU which remains available for other tasks.

Integration

• Audio: Two dedicated audio PLLs, three full-duplex I²S interfaces, a new serial audio interface (SAI) supporting time-division multiplex (TDM) mode and a DFSDM (Digital filters for sigma-delta modulators or MEMS microphone).
• Up to 35 communication interfaces including four USARTs in addition to four UARTs running at up to 12.5 Mbit/s, one low-power UART, six SPIs running at up to 100 Mbit/s, four I²C interfaces running at up to 1 MHz with a new optional digital filter capability, two FD-CAN, two SDIO, USB 2.0 full-speed device/host/OTG controller with an on-chip PHY and a USB 2.0 high-speed/full-speed device/host/OTG controller, on-chip full-speed PHY and ULPI, Ethernet MAC, SPDIF-IN, HDMI-CEC, camera interface, single wire protocol interface and MDIO slave.
• Analog: Two 12-bit DACs, three fast ADCs reaching 14-bit maximum resolution (2 Msamples/s), 22 16- and 32-bit timers running at up to 400 MHz on the 16-bit high-resolution timer. Easily extendable memory range using the flexible memory controller with a 32-bit parallel interface, and supporting Compact Flash, SRAM, PSRAM, NOR, NAND and SDRAM memories or using the Dual-mode Quad-SPI to allow code execution from external serial Flash memory. An analog true random number generator.

Click on the video below for an overview of the STM32H7 key features and a demonstration

The STM32H7 MCU line is supported by the STM32 Nucleo-144 board (NUCLEO-H743ZI) which provides an affordable and flexible way for users to try out new concepts and build prototypes with the STM32H7 microcontroller, choosing from the various combinations of performance, power consumption, and features.

The ST Zio connector, which is an extension of Arduino™ Uno V3, provides access to more peripherals while ST morpho headers provide an easy means of expanding the functionality of the Nucleo open development platform with a wide choice of specialized shields. The STM32 Nucleo-144 board does not require any separate probe. This board integrates the ST-LINK/V2-1 debugger / programmer and comes with the STM32 comprehensive software HAL library, together with various packaged software examples, as well as a direct access to the ARM^® mbed™ online resources at http://mbed.org

To celebrate the launch of the high performance STM32H7 MCU line, Anglia are offering customers a FREE NUCLEO-H743ZI Development Board from STMicroelectronics, please fill in the form below to register your interest now.