STMicroelectronics STM32F746IGT6

Overview

STM32F746IGT6 from STMicroelectronics is a high-performance ARM Cortex-M7 microcontroller with FPU, 216 MHz max clock, 1 MB Flash, 320+16+4 KB RAM, integrated Ethernet MAC, USB OTG HS/FS, LCD-TFT controller, and dual CAN 2.0B interfaces - deployed in industrial HMI, medical imaging front-ends, and real-time motor control systems.

For engineers reviewing the STM32F746IGT6 datasheet, STM32F746IGT6 pinout, STM32F746IGT6 application, or STM32F746IGT6 equivalent, key selection criteria include its 216 MHz deterministic execution with ART Accelerator™, dual-bank Flash for seamless firmware updates, hardware-accelerated Chrom-ART DMA2D graphics engine, IEEE 1588v2-capable Ethernet MAC, and 168-pin LQFP package with 166 5 V-tolerant I/Os.

Technical Context

The STM32F746IGT6 implements a tightly coupled Arm Cortex-M7 core with dual 4 KB L1 caches (instruction/data), adaptive real-time accelerator (ART) enabling zero-wait-state execution from Flash, and Memory Protection Unit (MPU) for secure task isolation in RTOS environments.

Its peripheral architecture features an AXI-AHB bus matrix supporting concurrent high-bandwidth access to Flash, SRAM, and external memory via Flexible Memory Controller (FMC), plus dedicated DMA channels for Ethernet, USB OTG HS, SAI, and LCD-TFT - enabling simultaneous real-time video capture, network streaming, and GUI rendering without CPU bottlenecks.

Key Specifications

Pinout & Package

LQFP176 (24 × 24 mm, 0.5 mm pitch) package with exposed thermal pad; 176 pins arranged in quad flat configuration, RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F746IGT6, the STM32H743VIT6 offers higher compute density but requires external Ethernet PHY and adds software complexity for dual-core coordination, while the STM32F429ZIT6 reduces cost and power at the expense of deterministic real-time networking and hardware-accelerated graphics capabilities.

Availability

STM32F746IGT6 is available at Aetrix Electronics and suitable for industrial HMI, medical imaging front-ends, and networked motor control applications requiring stable component supply across multi-year production cycles.

Supply support for STM32F746IGT6 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, Switzerland, designing and manufacturing microcontrollers, power ICs, sensors, and automotive-grade components since 1987.

The STM32F7 series targets high-end embedded applications demanding real-time determinism, rich multimedia capability, and industrial connectivity - bridging the gap between traditional MCUs and application processors.

FAQ

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

The STM32F746IGT6 achieves 216 MHz maximum CPU frequency using the Arm Cortex-M7 core with ART Accelerator™ and dual 4 KB L1 caches. The ART Accelerator eliminates Flash wait states by prefetching and caching instructions, while the L1 caches reduce memory access latency - enabling sustained 0-wait-state execution even with complex code branches and data-intensive algorithms.

Does STM32F746IGT6 support hardware encryption or secure boot?

No, the STM32F746IGT6 does not integrate hardware cryptographic accelerators (AES, SHA, PKA) or tamper-detection circuitry. It lacks ROM-based secure boot or TrustZone support. For secure firmware validation, external secure elements or software-based signature verification using its 96-bit unique ID and CRC unit are required - unlike later STM32H7 or STM32L5 series with built-in crypto engines.

Can the LCD-TFT controller drive high-resolution displays without external memory?

Yes, the integrated LCD-TFT controller supports XGA (1024×768) resolution using internal SRAM, but only for static or low-frame-rate content. For smooth animation or video playback, external SDRAM via the Flexible Memory Controller (FMC) is required - the controller itself has no dedicated frame buffer memory and relies on DMA2D to read pixel data from system RAM or external memory.

What are the key differences between STM32F746IGT6 and STM32F746VGT6?

The STM32F746IGT6 uses LQFP176 (24×24 mm) packaging with 176 pins, enabling full peripheral access including all Ethernet MII signals, dual CAN, and complete DCMI interface. The STM32F746VGT6 uses LQFP100 (14×14 mm) with only 100 pins, omitting Ethernet MII, second CAN, and 32+ I/Os - making it suitable for space-constrained designs where those peripherals are unused.