STMicroelectronics STM32F479IIH6

Overview

STM32F479IIH6 from STMicroelectronics is a high-performance Arm® Cortex®-M4 32-bit MCU with FPU, operating at up to 180 MHz (225 DMIPS), featuring 2 MB dual-bank Flash, 384+4 KB SRAM (including 64 KB CCM), integrated Chrom-ART Accelerator™ for GUI rendering, MIPI DSI host controller (720p@30 Hz), and hardware crypto engine (AES-128/192/256, SHA-1/2, HMAC). It targets advanced HMI systems requiring real-time graphics, camera input, and secure connectivity.

For engineers reviewing the STM32F479IIH6 datasheet, STM32F479IIH6 pinout, STM32F479IIH6 application, or STM32F479IIH6 equivalent, key selection criteria include its dual Quad-SPI interface, LCD-TFT + MIPI DSI display support, 10/100 Ethernet MAC with IEEE 1588v2, USB OTG HS/FS with dedicated DMA, and cryptographic acceleration for secure boot and data integrity.

Technical Context

This MCU integrates an adaptive real-time memory accelerator (ART Accelerator™) enabling zero-wait-state execution from Flash at 180 MHz, alongside a Memory Protection Unit (MPU) and dual-bank Flash supporting read-while-write operations. Its multi-AHB bus matrix enables concurrent access to peripherals, Flash, and SRAM without contention.

The device features a dedicated flexible memory controller (FMC) supporting SDRAM, PSRAM, NOR/NAND flash, and SRAM, plus dual independent Quad-SPI interfaces for external XIP or memory-mapped code/data. The MIPI D-PHY PLL delivers precise clocking for DSI video transmission up to 720p@30 Hz with sub-pixel timing control.

Key Specifications

Pinout & Package

STM32F479IIH6 is housed in a UFBGA176 (10 × 10 mm) package with 176 I/O balls, rated for industrial temperature range (–40°C to +85°C). Pin functions are defined per ST's DS11118 Rev 8, Section 3 ("Pinouts and pin description").

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F479IIH6, the STM32F769NIH6 trades MIPI DSI for JPEG acceleration and higher CPU throughput, while the STM32H743VIT6 sacrifices display interface integration for dual-core flexibility and GPU-based rendering - neither matches the F479's balanced combination of camera input, MIPI DSI output, and hardware GUI acceleration in one UFBGA176 package.

Availability

STM32F479IIH6 is available at Aetrix Electronics and suitable for industrial HMI, medical imaging terminals, secure IoT gateways, and automotive infotainment prototypes requiring stable component supply across long production lifecycles.

Supply support for STM32F479IIH6 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, specializing in microcontrollers, power management, sensors, and automotive ICs.

The STM32F4-series targets high-performance embedded applications demanding real-time processing, rich graphical user interfaces, and integrated connectivity - designed specifically for industrial control, medical devices, and smart appliances where graphics, security, and peripheral integration are critical.

FAQ

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

The STM32F479IIH6 achieves 180 MHz maximum CPU frequency using its internal PLL with HSE (4–26 MHz) or HSI (16 MHz) as source. The ART Accelerator™ eliminates Flash wait states, and the adaptive real-time accelerator ensures deterministic execution. Voltage must be ≥2.7 V for full 180 MHz operation per DS11118 Section 5.3.1.

Does STM32F479IIH6 support MIPI DSI without external PHY?

Yes - it integrates a full MIPI D-PHY compliant transmitter (not just DSI protocol logic) with programmable drive strength, slew rate, and termination. The DSI host controller directly drives D-PHY lanes (CLKP/N, DAT0P/N–DAT3P/N) and supports LP/HS mode switching, eliminating need for external PHY ICs in standard DSI panel interfaces.

How does the dual-bank Flash architecture improve firmware reliability?

Dual-bank Flash allows one bank to be erased and reprogrammed while code executes from the other - enabling safe over-the-air (OTA) updates without system interruption. Bank swapping is controlled via FLASH_OPTCR register, and the option bytes support write protection per bank to prevent accidental corruption during field updates.

What is the role of the 64 KB CCM (core coupled memory)?

The 64 KB CCM RAM is tightly coupled to the Cortex-M4 core with zero-wait-state access, exclusively mapped to the CPU's data bus. It is used for time-critical variables, stack, and ISR buffers - avoiding cache misses and bus arbitration delays that occur with main SRAM, thereby improving worst-case interrupt latency by up to 3× in real-time control applications.