STM32H745/755 Arm Cortex-M7+M4 Dual Core Microcontrollers (MCU)

The STM32H7x5 lines of microcontrollers combine the performance of the Arm® Cortex®-M7 (with double-precision floating point unit) up to 480 MHz and the Arm® Cortex®-M4 core (with single-precision floating point unit) up to 240 MHz, with optional extended ambient temperature range up to 125 °C.

Performance

480 MHz f_CPUon the Cortex-M7 and 240 MHz on the Cortex-M4, 3224 CoreMark / 1327 DMIPS executing from Flash memory, with 0-wait states thanks to its L1 cache.
L1 cache (16 Kbytes of I-cache +16 Kbytes of D-cache) boosting execution performance from external memories.

Security

STM32H755 MCUs include the following additional security features:

Crypto/hash hardware acceleration
Secure Firmware Install (SFI) embedded security services to authenticate and protect your software IPs while performing initial programming.
Secure Boot Secure Firmware Update (SBSFU)

Power efficiency

Multi-power domain architecture enables different power domains to be set in low-power mode to optimize the power efficiency.
Embedded SMPS to scale down the supply voltage. It can also be used to supply external circuitry and can also be combined with the LDO for specific use cases.
USB regulator to supply the embedded physical layer (PHY).
145 µ/MHz typical @VDD = 3.3 V and 25 °C in Run mode (peripherals off) and SMPS
2.43 µA typical in Standby mode (low-power mode)
460 nA typical in VBAT mode with RTC (low-power mode)

Graphics

LCD-TFT controller interface with dual-layer support
Chrom‑ART Accelerator™ boosts graphical content creation while saving core processing power, thus freeing up the MCU for other application needs
JPEG hardware accelerator for fast JPEG encoding and decoding, off-loading the CPU

Embedded peripherals

Up to 35 communication interfaces including FD-CAN, USB 2.0 high-speed/full-speed, Ethernet MAC, camera interface
Easily extendable memory range using the flexible memory controller with a 32-bit parallel interface, or the Dual-mode Quad-SPI serial Flash memory interface
Analog: 12-bit DACs, fast 16-bit ADCs
Multiple 16- and 32-bit timers running at up to 480 MHz on the 16-bit high-resolution timer

The STM32H7x5 provides from 1 to 2 Mbytes of Flash memory, 1 Mbyte of SRAM with the following architecture: 192 Kbytes of TCM RAM (including 64 Kbytes of ITCM RAM and 128 Kbytes of DTCM RAM for time-critical routines and data), 64, 288 or 512 Kbytes of user SRAM, and 4 Kbytes of SRAM in backup domain to keep data in the lowest power modes and 144- to 240-pin packages in BGA and LQFP profiles.

*Maximum extended temperature range: 125 °C ambient / 140 °C junction temperature. Dedicated part numbers

STM32H755BI
High-performance and DSP with DP-FPU, Arm Cortex-M7 + Cortex-M4 MCU with 2MBytes of Flash memory, 1MB RAM, 480 MHz CPU, Art Accelerator, L1 cache, external memory interface, large set of peripherals including a Crypto accelerator, SMPS
STM32H745BI
High-performance and DSP with DP-FPU, Arm Cortex-M7 + Cortex-M4 MCU with 2MBytes of Flash memory, 1MB RAM, 480 MHz CPU, Art Accelerator, L1 cache, external memory interface, large set of peripherals, SMPS
STM32H745XG
High-performance and DSP with DP-FPU, Arm Cortex-M7 + Cortex-M4 MCU with 1MBytes of Flash memory, 1MB RAM, 480 MHz CPU, Art Accelerator, L1 cache, external memory interface, large set of peripherals, SMPS
STM32H745XI
High-performance and DSP with DP-FPU, Arm Cortex-M7 + Cortex-M4 MCU with 2MBytes of Flash memory, 1MB RAM, 480 MHz CPU, Art Accelerator, L1 cache, external memory interface, large set of peripherals, SMPS
STM32H755XI
High-performance and DSP with DP-FPU, Arm Cortex-M7 + Cortex-M4 MCU with 2MBytes of Flash memory, 1MB RAM, 480 MHz CPU, Art Accelerator, L1 cache, external memory interface, large set of peripherals including a Crypto accelerator, SMPS
STM32H745ZG
High-performance and DSP with DP-FPU, Dual core Arm Cortex-M7+ Cortex-M4 MCU with 1MBytes of Flash memory, 1MB RAM, 480 MHz CPU, Art Accelerator, L1 cache, external memory interface, large set of peripherals, SMPS
STM32H745IG
High-performance and DSP with DP-FPU, Arm Cortex-M7 + Cortex-M4 MCU with 1MBytes of Flash memory, 1MB RAM, 480 MHz CPU, Art Accelerator, L1 cache, external memory interface, large set of peripherals, SMPS
STM32H755II
High-performance and DSP with DP-FPU, Arm Cortex-M7 + Cortex-M4 MCU with 2MBytes of Flash memory, 1MB RAM, 480 MHz CPU, Art Accelerator, L1 cache, external memory interface, large set of peripherals including a Crypto accelerator, SMPS
STM32H745ZI
High-performance and DSP with DP-FPU, Dual core Arm Cortex-M7+ Cortex-M4 MCU with 2MBytes of Flash memory, 1MB RAM, 480 MHz CPU, Art Accelerator, L1 cache, external memory interface, large set of peripherals, SMPS
STM32H745II
High-performance and DSP with DP-FPU, Arm Cortex-M7 + Cortex-M4 MCU with 2MBytes of Flash memory, 1MB RAM, 480 MHz CPU, Art Accelerator, L1 cache, external memory interface, large set of peripherals, SMPS
STM32H745BG
High-performance and DSP with DP-FPU, Arm Cortex-M7 + Cortex-M4 MCU with 1MBytes of Flash memory, 1MB RAM, 480 MHz CPU, Art Accelerator, L1 cache, external memory interface, large set of peripherals, SMPS
STM32H755ZI
High-performance and DSP with DP-FPU, Arm Cortex-M7 + Cortex-M4 MCU with 2MBytes of Flash memory, 1MB RAM, 480 MHz CPU, Art Accelerator, L1 cache, external memory interface, large set of peripherals including a Crypto accelerator, SMPS