STMicroelectronics STM32F746IGK7

Overview

STM32F746IGK7 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 (XGA), dual CAN 2.0B, USB OTG HS/FS, and 10/100 Ethernet MAC - deployed in industrial HMI, medical imaging front-ends, and connected gateway edge nodes.

For engineers reviewing the STM32F746IGK7 datasheet, STM32F746IGK7 pinout, STM32F746IGK7 application, or STM32F746IGK7 equivalent, key selection criteria include TCM RAM allocation for real-time control loops, Chrom-ART Accelerator™ support for GUI rendering offload, IEEE 1588v2 hardware timestamping for time-sensitive networking, and dual-mode Quad-SPI for secure firmware update partitioning.

Technical Context

The STM32F746IGK7 implements an Arm Cortex-M7 core with adaptive real-time accelerator (ART Accelerator™), 4 KB instruction and 4 KB data L1 cache, enabling zero-wait-state execution from flash or external memory. It integrates dual-bank Flash with read-while-write capability and supports TrustZone-based secure boot via embedded ROM bootloader.

Its peripheral architecture features AXI/AHB bus matrix for concurrent high-bandwidth access to SRAM, FMC, and DMA2D; the LCD-TFT controller includes dedicated LTDC with alpha blending and layer composition, while the dual CAN interfaces operate independently with message RAM and flexible filtering.

Key Specifications

Pinout & Package

STM32F746IGK7 is housed in a UFBGA176 package (10 × 10 mm, 0.65 mm ball pitch) with 168 I/O terminals, including 166 5 V-tolerant pins and dedicated power/ground balls for noise isolation. Pin functions are validated per STMicroelectronics datasheet DS10916 Rev 5, Table 10.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F746IGK7, the STM32H743VIT6 offers higher compute throughput but requires external display logic, while the STM32F767ZIT6 trades IEEE 1588v2 and HDMI-CEC for larger Flash - making the IGK7 optimal for time-aware HMI gateways.

Availability

STM32F746IGK7 is available at Aetrix Electronics and suitable for industrial HMI, medical imaging front-ends, smart gateway edge nodes, and motor control drive interfaces requiring stable component supply across extended product lifecycles.

Supply support for STM32F746IGK7 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, sensors, and automotive ICs - headquartered in Geneva, Switzerland, with R&D centers across Europe, Asia, and the Americas.

The STM32F7 series targets high-end embedded applications demanding real-time performance, rich connectivity, and advanced graphics - designed specifically for industrial automation, medical devices, and IoT edge gateways.

FAQ

What is the maximum operating temperature range for STM32F746IGK7?

The STM32F746IGK7 is rated for industrial temperature range: –40 °C to +85 °C ambient. This is confirmed in Section 6.3.1 of DS10916 Rev 5, with thermal derating applied above 70 °C for sustained 216 MHz operation. The UFBGA176 package's θ_JA is 31.5 °C/W under standard JEDEC PCB conditions.

Does STM32F746IGK7 support secure boot and cryptographic acceleration?

Yes - it includes a ROM-based secure bootloader supporting signed firmware validation, and hardware accelerators for AES-128/192/256, SHA-1, and SHA-256. These are documented in Sections 3.42 and 3.43 of DS10916 Rev 5, with key provisioning handled via unique 96-bit ID and optional OTP memory.

Can the LCD-TFT controller drive RGB888 panels at 1024×768 resolution?

Yes - the LTDC supports XGA (1024×768) at 60 Hz with RGB888 format using its 24-bit parallel interface (PC0–PC11, PD0–PD7, PE0–PE12). Pixel clock generation is hardware-managed, and DMA2D handles layer composition without CPU intervention, per Section 3.10 and Table 30 in DS10916 Rev 5.

What debug interfaces are supported, and is SWO trace available?

The STM32F746IGK7 supports SWD and JTAG via dedicated pins (PA13/PA14, PB3/PB4), plus Cortex-M7 Trace Macrocell™ with 4-pin SWO output for real-time instruction and data trace. SWO bandwidth supports up to 100 MHz trace clock, as specified in Section 3.43 and Table 23 of DS10916 Rev 5.