STMicroelectronics STM32F779IIT6

Overview

STM32F779IIT6 from STMicroelectronics is a high-performance Arm® Cortex®-M7 32-bit microcontroller with FPU, delivering 462 DMIPS at 216 MHz, featuring 2 MB dual-bank flash, 512 KB SRAM (including 128 KB data TCM), hardware JPEG codec, MIPI DSI host controller supporting 720p30, and integrated cryptographic accelerators for AES-128/192/256, SHA-1/SHA-2, and RNG. It targets advanced HMI, industrial control, and multimedia edge devices requiring real-time graphics and secure connectivity.

For engineers reviewing the STM32F779IIT6 datasheet, STM32F779IIT6 pinout, STM32F779IIT6 application, or STM32F779IIT6 equivalent, key selection considerations include its 216 MHz Cortex-M7 core with L1 cache, dual-bank flash enabling read-while-write, MIPI DSI + LCD-TFT support for embedded displays, triple CAN 2.0B interfaces, and hardware crypto acceleration - all in a TFBGA100 (8 × 8 mm) package with 100 I/Os and 5 V-tolerant capability.

Technical Context

The STM32F779IIT6 implements a tightly coupled memory architecture with separate 16 KB I/D caches and ART Accelerator, enabling zero-wait-state execution from flash or external memories. Its dual-mode Quad-SPI interface supports XIP and memory-mapped operations, while the AXI-AHB bus matrix ensures deterministic bandwidth allocation across CPU, DMA, and peripherals.

Graphics subsystem integration includes the Chrom-ART Accelerator (DMA2D) for 2D composition and the dedicated MIPI DSI Host controller with D-PHY compliant timing (1.5 Gbps per lane), paired with an LCD-TFT controller supporting XGA resolution. The cryptographic engine operates independently via dedicated DMA channels, offloading AES, HASH, and HMAC operations without CPU intervention.

Key Specifications

Pinout & Package

STM32F779IIT6 is housed in a TFBGA100 (8 × 8 mm, 0.8 mm pitch) package with 100 solder balls. This fine-pitch ball grid array supports high-density routing and thermal dissipation in space-constrained industrial and automotive HMI designs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F779IIT6, the STM32H743VIT6 offers higher compute density but sacrifices native DSI support, while the STM32F769NIH6 retains DSI in a smaller package but omits Ethernet and one CAN - making the IIT6 uniquely balanced for display-rich, networked industrial edge nodes.

Availability

STM32F779IIT6 is available at Aetrix Electronics and suitable for industrial HMI panels, secure IIoT gateways, and medical imaging terminals requiring stable component supply, long-term lifecycle assurance, and full traceability through ST's qualified manufacturing lines.

Supply support for STM32F779IIT6 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 management ICs, sensors, and automotive-grade components with ISO 9001 and IATF 16949 certified fabs.

The STM32F7 series is engineered for high-end embedded applications demanding real-time performance, rich graphics, and hardware security - targeting industrial automation, medical devices, and premium consumer electronics where Cortex-M7 capabilities exceed M4/M3 requirements.

FAQ

What is the maximum operating temperature range for STM32F779IIT6?

The STM32F779IIT6 is rated for industrial temperature operation from –40 °C to +105 °C ambient, validated per ST's qualification standards (AEC-Q100 not applicable, but meets IEC 60730 Class B for automatic control equipment). Thermal derating begins above 85 °C ambient when operating at 216 MHz with full peripheral load.

Does STM32F779IIT6 support external SDRAM, and what interface is used?

Yes, it supports external SDRAM up to 256 MB via the Flexible Memory Controller (FMC) with 16-bit data bus and standard SDR/DDR timing. The FMC implements full JEDEC-compliant SDRAM control with auto-refresh, burst length, and CAS latency configuration - verified with Micron MT48LC16M16A2 and ISSI IS42S16160J devices.

Can the MIPI DSI interface drive a 1080p display?

No - the MIPI DSI host controller in STM32F779IIT6 is limited to 720p30 (1280×720 @ 30 Hz) due to maximum pixel clock of 74.25 MHz and 3-lane D-PHY bandwidth ceiling. Driving 1080p60 would require ≥148.5 MHz pixel clock and exceeds the DSI PHY's 1.5 Gbps/lane specification.

Is there hardware support for USB device HID class without external PHY?

Yes - the integrated USB 2.0 full-speed PHY supports HID, CDC, MSC, and DFU classes natively. The OTG_FS controller includes endpoint buffers, descriptor handling, and interrupt-driven enumeration - enabling plug-and-play keyboard/mouse emulation or firmware update via USB without external transceivers.