STMicroelectronics STM32F746VGT6E

Overview

STM32F746VGT6E 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 LCD-TFT controller, Ethernet MAC, USB OTG HS/FS, dual CAN 2.0B, and hardware crypto acceleration - deployed in industrial HMI, medical imaging front-ends, and networked edge gateways.

For engineers reviewing the STM32F746VGT6E datasheet, STM32F746VGT6E pinout, STM32F746VGT6E application, or STM32F746VGT6E equivalent, key selection criteria include dual-bank Flash for safe firmware updates, Chrom-ART Accelerator™ for real-time GUI rendering, IEEE 1588v2 support for time-sensitive networking, and 168 I/Os with 5 V tolerance for mixed-voltage system interfacing.

Technical Context

This MCU implements a dual-bus AXI-AHB matrix architecture enabling concurrent access to Flash, SRAM, and peripherals without contention. Its ART Accelerator™ with 4 KB instruction/data caches delivers zero-wait-state execution at 216 MHz, while the L1 cache and TCM RAM (64 KB data + 16 KB instruction) ensure deterministic latency for real-time control loops.

The device integrates three independent 12-bit ADCs (2.4 MSPS each, up to 7.2 MSPS in triple interleaved mode), two 12-bit DACs, and a true random number generator (TRNG) compliant with NIST SP800-90B. Its dual-mode Quad-SPI supports XIP and memory-mapped execution from external flash, and the DCMI interface handles parallel camera input up to 54 MB/s.

Key Specifications

Pinout & Package

LQFP100 (14 × 14 mm, 0.5 mm pitch) package with exposed thermal pad; 100-pin quad flat configuration optimized for thermal dissipation and PCB routing density in space-constrained industrial designs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F746VGT6E, the STM32F767ZIT6 offers expanded memory in a larger package for complex firmware, while the STM32H743VIT6 doubles CPU frequency and adds dual-core capability at the cost of integrated display support - making it suitable for compute-bound rather than graphics-bound use cases.

Availability

STM32F746VGT6E is available at Aetrix Electronics and suitable for industrial HMIs, medical imaging front-ends, and networked edge gateways requiring stable component supply, long-term lifecycle assurance, and full traceability through ST's qualified manufacturing chain.

Supply support for STM32F746VGT6E 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 semiconductors since 1987.

The STM32F7 series targets high-end embedded applications demanding real-time performance, rich connectivity, and advanced graphics - specifically engineered for industrial automation, medical devices, and smart infrastructure where deterministic response and peripheral integration are critical.

FAQ

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

The STM32F746VGT6E achieves 216 MHz via its ARM Cortex-M7 core with ART Accelerator™ and 4 KB instruction/data caches. This eliminates wait states during Flash execution. The internal voltage regulator must be enabled, and VDD must be ≥2.7 V. External clock sources (4–26 MHz crystal or 16 MHz RC) feed PLLs that generate the system clock - validated per DS10916 Rev 5 Section 6.3.11.

Does this MCU support secure firmware updates?

Yes. It features dual-bank Flash memory enabling atomic firmware swaps, hardware AES-128/256 encryption, public-key acceleration (RSA, ECC), and tamper-detect circuitry. Secure boot verifies signature integrity before execution. These capabilities are documented in RM0385 Reference Manual and AN4751 application note for STM32F7-series secure firmware update.

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

Yes. The integrated LCD-TFT controller supports XGA (1024×768) resolution with RGB interface, programmable timing, and up to 24-bit color depth. It requires only passive termination resistors and a backlight driver - no external video RAM or timing ICs. Chrom-ART Accelerator™ handles pixel blending and rotation in hardware, as confirmed in Section 3.10 and 3.11 of DS10916.

What low-power modes are available and what is the lowest current draw?

It supports Sleep, Stop, and Standby modes. In Standby mode with RTC and backup SRAM active, typical current is 1.8 µA (max 9 µA) at 25°C per DS10916 Section 6.3.33. VBAT supply maintains RTC, 32×32-bit registers, and 4 KB backup SRAM. Wake-up latency from Standby is ≤10 µs via EXTI or RTC alarm.