STMicroelectronics STM32H745IGK6

Overview

STM32H745IGK6 from STMicroelectronics is a dual-core 32-bit Arm® Cortex®-M7 (up to 480 MHz) and Cortex®-M4 (up to 240 MHz) microcontroller with 2 MB flash, 1 MB RAM (including 192 KB TCM), integrated SMPS regulator, and 168 GPIOs. It supports real-time deterministic execution via dual L1 caches (16 KB I-cache + 16 KB D-cache on M7), ART Accelerator for zero-wait-state flash access, and hardware JPEG codec for embedded vision applications.

For engineers reviewing the STM32H745IGK6 datasheet, STM32H745IGK6 pinout, STM32H745IGK6 application, or STM32H745IGK6 equivalent, key selection criteria include dual-core asymmetric processing capability, integrated SMPS for power efficiency, 16-bit ADC (3.6 MSPS) with DFSDM support, Ethernet MAC + dual CAN FD interfaces, and TFBGA240+25 package compatibility with high-density PCB layouts.

Technical Context

The device implements a three-domain power architecture (D1/D2/D3) enabling independent clock gating and voltage scaling across performance, communication, and control subsystems. Its interconnect matrix comprises one AXI and two AHB bus matrices with five AHB2-APB bridges, supporting concurrent high-bandwidth data flows between CPU cores, DMA controllers, and peripherals.

Dual-core operation is coordinated via shared memory with hardware semaphores and interrupt forwarding; the M7 core handles compute-intensive tasks (e.g., JPEG decode, motor control algorithms), while the M4 manages real-time I/O (CAN FD, USB OTG, SDMMC) and low-latency sensor fusion using its dedicated TCM RAM and ART-accelerated flash execution.

Key Specifications

Pinout & Package

STM32H745IGK6 is housed in a TFBGA240+25 package (14 × 14 mm, 0.8 mm ball pitch) with 240 solder balls plus 25 dedicated ground/power balls. The package complies with ECOPACK2 environmental standards and supports extended temperature operation up to 125 °C.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-core Arm Cortex-M microcontroller applications.

Compared with STM32H745IGK6, STM32H753IIK6 trades integrated power management for cryptographic acceleration, while i.MX RT1176DVMAA sacrifices analog integration and deterministic low-latency I/O for higher CPU throughput and multimedia features-making STM32H745IGK6 optimal for mixed-signal industrial edge nodes requiring both compute density and analog fidelity.

Availability

STM32H745IGK6 is available at Aetrix Electronics and suitable for industrial PLCs, medical imaging edge nodes, automotive ADAS camera hubs, and smart energy gateways requiring stable component supply across long product lifecycles.

Supply support for STM32H745IGK6 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader specializing in microcontrollers, power management, and analog/mixed-signal ICs for industrial, automotive, and consumer applications.

The STM32H7 series targets high-performance embedded systems demanding real-time determinism, rich peripheral integration, and energy efficiency-designed specifically for industrial automation, medical devices, and advanced driver-assistance systems.

FAQ

What is the maximum operating frequency of each core in the STM32H745IGK6?

The Arm Cortex-M7 core operates at up to 480 MHz with double-precision FPU and L1 cache (16 KB instruction + 16 KB data), delivering 1027 DMIPS. The Cortex-M4 core runs at up to 240 MHz with single-precision FPU and ART Accelerator, achieving 300 DMIPS. Both frequencies are validated under full voltage scaling and thermal conditions per DS12923 Rev 3 Section 6.3.14.

Does the STM32H745IGK6 support hardware JPEG encoding and decoding?

Yes, it integrates a dedicated hardware JPEG codec compliant with baseline JPEG standard (ISO/IEC 10918-1), supporting YUV422 and RGB565 formats. The codec handles full encode/decode operations independently of CPU cores, reducing typical image processing latency by 4.2× versus software implementations, as verified in Application Note AN5029.

How many analog-to-digital converters does the STM32H745IGK6 include, and what are their key specifications?

It features three independent 16-bit ADCs with up to 36 input channels and a maximum sampling rate of 3.6 MSPS per ADC. Each supports hardware oversampling, analog watchdogs, and injection/conversion sequencing. These ADCs are fully compatible with the DFSDM peripheral for sigma-delta modulator interfacing, as detailed in Section 3.17 and Table 21 of DS12923 Rev 3.

What power supply configurations are supported for the STM32H745IGK6's core voltage?

The device supports dual-regulator operation: an integrated SMPS step-down converter (configurable 0.6–1.2 V output) directly powers VCORE, or an external LDO can be used. Voltage scaling offers six configurable ranges (VOS0–VOS5) to balance performance and power consumption. Minimum VCORE is 0.6 V at 100 MHz; maximum is 1.2 V at 480 MHz, per Section 6.3.3 of the datasheet.