STMicroelectronics STM32F777IIT6

Overview

STM32F777IIT6 from STMicroelectronics is a high-performance Arm® Cortex®-M7 32-bit microcontroller with FPU, delivering 462 DMIPS at 216 MHz, 2 MB dual-bank flash (enabling read-while-write), 512 KB SRAM (including 128 KB data TCM + 16 KB instruction TCM), hardware JPEG codec, and MIPI DSI host controller supporting up to 720p@30 Hz - deployed in industrial HMI systems requiring real-time graphics, secure connectivity, and deterministic response.

For engineers reviewing the STM32F777IIT6 datasheet, STM32F777IIT6 pinout, STM32F777IIT6 application, or STM32F777IIT6 equivalent, key selection considerations include its dual-bank flash architecture for safe firmware updates, Chrom-ART Accelerator (DMA2D) for zero-CPU-load GUI rendering, cryptographic acceleration (AES-128/192/256, SHA-1/2, HMAC), and 3×CAN 2.0B interfaces for robust industrial networking.

Technical Context

The STM32F777IIT6 integrates an Arm Cortex-M7 core with tightly coupled memory (TCM) subsystems: 128 KB data TCM for time-critical variables and 16 KB instruction TCM for latency-sensitive routines, both operating at full 216 MHz CPU frequency. Its ART Accelerator and 16 KB I/D cache enable zero-wait-state execution from flash or external memories.

It features a dual-mode Quad-SPI interface for high-speed external memory expansion, a dedicated 10/100 Ethernet MAC with IEEE 1588v2 hardware timestamping, and three independent CAN 2.0B controllers - enabling concurrent real-time fieldbus communication, deterministic network timing, and secure over-the-air update capability via USB OTG HS/FS or SDMMC.

Key Specifications

Pinout & Package

LQFP176 (24 × 24 mm) package with 168 I/O pins - 164 fast I/Os rated up to 108 MHz, 166 of which are 5 V-tolerant, supporting mixed-voltage system interfacing and legacy peripheral compatibility.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F777IIT6, the STM32H743VIT6 offers higher raw performance but sacrifices integrated DSI and adds complexity with dual-core coordination, while the STM32F767ZIT6 reduces cost and feature set - making the F777IIT6 optimal for DSI-based HMIs needing triple CAN and deterministic TCM-based control.

Availability

STM32F777IIT6 is available at Aetrix Electronics and suitable for industrial HMI panels, programmable logic controllers (PLCs), medical imaging front-ends, and secure IIoT gateways requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for STM32F777IIT6 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 advanced connectivity - specifically engineered for industrial automation, medical devices, and human-machine interfaces where security, determinism, and display integration are critical.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating of the STM32F777IIT6?

The STM32F777IIT6 operates at up to 216 MHz with a measured performance of 462 DMIPS (Dhrystone 2.1), achieving 2.14 DMIPS/MHz. This rating is validated under conditions of ART Accelerator and L1 cache enabled, executing from flash memory with zero wait states - confirmed in ST's DS11243 Rev 8 datasheet Section 3.1.

Does the STM32F777IIT6 support hardware-accelerated cryptography, and which algorithms are implemented?

Yes, it integrates a dedicated cryptographic accelerator supporting AES-128/192/256 encryption/decryption, triple DES, HASH (MD5, SHA-1, SHA-224, SHA-256), HMAC, and a True Random Number Generator (TRNG). These are silicon-hardened blocks accessible via dedicated registers - detailed in Section 3.39 of DS11243 Rev 8.

What display interfaces does the STM32F777IIT6 natively support, and what resolutions are achievable?

It supports two native display interfaces: an LCD-TFT controller (LTDC) capable of XGA resolution (1024×768) and a MIPI DSI host controller supporting up to 720p (1280×720) at 30 Hz. Both operate concurrently, enabling dual-display systems - specifications verified in Sections 3.10 and 3.48 of the official datasheet.

How many CAN interfaces does the STM32F777IIT6 include, and what protocol versions are supported?

The STM32F777IIT6 integrates three independent bxCAN 2.0B controllers, each supporting full CAN 2.0B active protocol (29-bit identifiers, error confinement, and automatic retransmission). All three operate simultaneously at bit rates up to 1 Mbps - documented in Section 3.33 and Table 2 of DS11243 Rev 8.