STMicroelectronics STM32F746IGT7

Overview

STM32F746IGT7 from STMicroelectronics is a high-performance ARM Cortex-M7 microcontroller with FPU, 216 MHz max CPU frequency, 1 MB Flash, 320+16+4 KB RAM, USB OTG HS/FS, 10/100 Ethernet MAC, LCD-TFT controller, and dual CAN 2.0B interfaces - deployed in industrial HMI, medical imaging front-ends, and connected gateway controllers.

For engineers reviewing the STM32F746IGT7 datasheet, STM32F746IGT7 pinout, STM32F746IGT7 application, or STM32F746IGT7 equivalent, key selection factors include LQFP176 package compatibility, 216 MHz real-time execution with ART Accelerator™ and L1 cache, triple-interleaved 7.2 MSPS ADC performance, and hardware IEEE 1588v2 support for deterministic Ethernet timing.

Technical Context

The STM32F746IGT7 integrates an Arm Cortex-M7 core with FPU, adaptive real-time accelerator (ART Accelerator™), and 4 KB instruction + 4 KB data L1 caches enabling zero-wait-state execution from Flash or external memory. It supports up to 216 MHz operation with 462 DMIPS and DSP instructions.

Its memory subsystem includes 320 KB SRAM (64 KB DTCM + 16 KB ITCM + 4 KB backup), flexible external memory controller (FMC) for SDRAM/NOR/NAND, and dual-mode Quad-SPI. Peripherals include two SAIs, SPDIFRX, HDMI-CEC, DCMI (54 MB/s), Chrom-ART Accelerator™ (DMA2D), and dual USB OTG (FS + HS with dedicated DMA).

Key Specifications

Pinout & Package

LQFP176 (24 × 24 mm) package with 0.5 mm pitch, exposed thermal pad, and standard JEDEC-compliant footprint for industrial reflow assembly.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-performance Cortex-M7 MCU applications.

Compared with STM32F746IGT7, the STM32F767IGT6 trades integrated Ethernet PHY for doubled memory capacity in identical packaging, while the STM32H743VIT6 delivers higher clock speed and dual-core capability but abandons display and imaging peripherals - making STM32F746IGT7 uniquely balanced for embedded vision and HMI applications requiring integrated connectivity and graphics acceleration.

Availability

STM32F746IGT7 is available at Aetrix Electronics and suitable for industrial HMI, medical imaging front-ends, and smart energy gateways requiring stable component supply, long-term lifecycle assurance, and full production traceability.

Supply support for STM32F746IGT7 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 headquartered in Geneva, designing and manufacturing microcontrollers, power ICs, sensors, and analog devices for industrial, automotive, and consumer markets.

The STM32F7 series targets high-end real-time embedded applications demanding both computational performance and rich peripheral integration - especially where graphics, connectivity, and deterministic timing converge.

FAQ

What is the maximum operating frequency and how is it achieved?

The STM32F746IGT7 achieves 216 MHz maximum CPU frequency using its Arm Cortex-M7 core with FPU, supported by the ART Accelerator™ and 4 KB instruction/data L1 caches. This configuration enables zero-wait-state execution from embedded Flash memory, verified under 1.7–3.6 V supply and industrial temperature range (–40°C to +85°C).

Does STM32F746IGT7 include an integrated Ethernet PHY?

Yes, the STM32F746IGT7 integrates a 10/100 Ethernet MAC with hardware IEEE 1588v2 timestamping, but requires an external PHY chip for physical layer signaling. It supports both MII and RMII interfaces, with dedicated DMA and register-level timestamping for sub-100 ns precision in time-sensitive networking.

How does the Chrom-ART Accelerator™ improve GUI performance?

The Chrom-ART Accelerator™ (DMA2D) performs hardware-accelerated 2D graphics operations - including memory-to-memory copy, pixel format conversion, and alpha-blending - without CPU intervention. This reduces CPU load by up to 70% during GUI rendering, enabling smooth 60 FPS animation on XGA-resolution displays using internal SRAM buffers.

What are the key low-power capabilities of this MCU?

The STM32F746IGT7 supports Sleep, Stop, and Standby modes with VBAT-powered RTC and 4 KB backup SRAM. In Stop mode with regulator ON, typical current is 80 µA; with regulator OFF, it drops to 12 µA. Wake-up from Stop mode takes ≤5 µs, and the low-power timer (LPTIM1) remains active for precise periodic wake-up scheduling.