STMicroelectronics STM32F779AIY6TR

Overview

STM32F779AIY6TR from STMicroelectronics is an 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 720p@30 Hz, and cryptographic acceleration for AES-128/192/256, SHA-2, and RNG. It targets high-performance embedded graphics and connectivity applications such as industrial HMIs and medical imaging front-ends.

For engineers reviewing the STM32F779AIY6TR datasheet, STM32F779AIY6TR pinout, STM32F779AIY6TR application, or STM32F779AIY6TR equivalent, key selection criteria include DSI interface capability, dual-bank flash RWW support, TCM RAM allocation for real-time tasks, and hardware crypto engine integration - all confirmed in DS11243 Rev 8.

Technical Context

The device integrates a Cortex-M7 core with ART Accelerator and 16 KB I/D cache enabling zero-wait-state execution from flash or external memory. Its AXI-AHB bus matrix supports concurrent high-bandwidth access to flash, SRAM, FMC, and peripherals including dual USB OTG (FS + HS), 10/100 Ethernet MAC with IEEE 1588v2, and three CAN 2.0B controllers.

Graphics subsystem includes Chrom-ART Accelerator (DMA2D) for GUI rendering acceleration, LCD-TFT controller up to XGA, and MIPI DSI Host with D-PHY compliant timing (145–500 Mbps per lane). The cryptographic unit implements dedicated hardware for AES, HASH, HMAC, and true random number generation - not software-emulated.

Key Specifications

Pinout & Package

STM32F779AIY6TR is packaged in WLCSP180 (0.4 mm pitch, 13 × 13 mm footprint), optimized for space-constrained portable and wearable HMI designs. Pin count: 180 terminals.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-performance graphics and connectivity applications.

Compared with STM32F769NIH6, STM32F779AIY6TR adds native DSI support for thinner displays and lower EMI, while STM32H743VIT6 trades DSI for higher compute density and dual-core flexibility - neither offers identical DSI+crypto+Ethernet integration in WLCSP form factor.

Availability

STM32F779AIY6TR is available at Aetrix Electronics and suitable for industrial HMIs, medical imaging front-ends, and smart building gateways requiring stable component supply, long-term lifecycle assurance, and qualified automotive-grade traceability.

Supply support for STM32F779AIY6TR 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 since 1987.

The STM32F7 series targets high-end embedded applications demanding real-time performance, rich graphics, and secure connectivity - specifically engineered for industrial automation, medical devices, and premium consumer electronics where integrated DSI and hardware crypto reduce system complexity.

FAQ

What is the maximum operating frequency and corresponding performance metric for STM32F779AIY6TR?

The STM32F779AIY6TR operates at up to 216 MHz with its Arm Cortex-M7 core, achieving 462 DMIPS (Dhrystone 2.1) and 2.14 DMIPS/MHz. This performance level is sustained across all memory regions - flash, TCM RAM, and external memory - thanks to the ART Accelerator and 16 KB I/D cache, which eliminate wait states during instruction fetch and data access.

Does STM32F779AIY6TR support MIPI DSI with hardware PHY, and what resolutions are achievable?

Yes, STM32F779AIY6TR integrates a full MIPI DSI Host controller with compliant D-PHY physical layer, supporting up to four high-speed data lanes and one clock lane. It achieves 720p resolution at 30 Hz (1280×720) in video mode, with configurable lane count, bit rate (145–500 Mbps per lane), and LP/HS transition timing per MIPI D-PHY v1.2 specification.

How does the cryptographic acceleration block differ from software-based implementations?

The hardware crypto engine provides dedicated circuits for AES-128/192/256, triple DES, SHA-1/SHA-2, HMAC, and true random number generation - executing operations in constant time with no software overhead. Unlike software libraries, it prevents timing side-channel attacks and delivers >10× faster throughput (e.g., AES-256 ECB at ~20 MB/s), validated per ST's AN4510 and DS11243 electrical characterization tables.

What package type and pin count does STM32F779AIY6TR use, and what are its layout implications?

STM32F779AIY6TR uses the WLCSP180 package: 180-ball wafer-level chip-scale package with 0.4 mm pitch and 13 × 13 mm body size. This requires microvia PCB design, solder mask defined pads, and strict impedance control for DSI differential pairs. The compact footprint supports ultra-thin portable HMI designs but mandates careful thermal relief and ground plane partitioning per ST's AN5029 layout guidelines.