STMicroelectronics STM32F479IIT6

Overview

STM32F479IIT6 from STMicroelectronics is a high-performance Arm® Cortex®-M4 32-bit MCU with FPU, operating 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 dual USB OTG (FS/HS) with dedicated DMA. It targets advanced human-machine interface (HMI) systems requiring real-time graphics, camera input, and industrial connectivity.

For engineers reviewing the STM32F479IIT6 datasheet, STM32F479IIT6 pinout, STM32F479IIT6 application, or STM32F479IIT6 equivalent, key selection considerations include its 176-pin LQFP package, 180 MHz CPU clock with ART Accelerator™ enabling zero-wait-state Flash execution, dual Quad-SPI support, hardware cryptographic acceleration (AES-128/192/256, SHA-1/2), and integrated LCD-TFT + MIPI DSI display subsystems.

Technical Context

The STM32F479IIT6 integrates an adaptive real-time memory accelerator (ART Accelerator™) that eliminates Flash wait states at 180 MHz, paired with a Memory Protection Unit (MPU) and dual-bank Flash supporting read-while-write operations. Its multi-AHB bus matrix enables concurrent access to peripherals including FMC, dual Quad-SPI, and Ethernet MAC.

Graphics processing is offloaded via the Chrom-ART Accelerator™ (DMA2D), which handles 2D composition, alpha blending, and color format conversion independently of the CPU. The MIPI DSI host controller implements D-PHY v1.2 with programmable PLL and regulator, supporting up to 720p@30 Hz video timing with hardware lane synchronization and error detection.

Key Specifications

Pinout & Package

LQFP176 package with 0.5 mm pitch, 24 × 24 mm body size, exposed thermal pad (EP), and standard JEDEC MO-207 footprint. Pin count: 176 leads; I/O count: up to 161 general-purpose pins (157 fast I/Os @ 90 MHz, 159 5 V-tolerant).

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F479IIT6, the STM32F769NIH6 offers higher CPU throughput but sacrifices native MIPI DSI support, while the STM32H743VIT6 provides dual-core flexibility at the cost of display subsystem integration - both require external components to match the F479's single-chip DSI+TFT+GPU acceleration capability.

Availability

STM32F479IIT6 is available at Aetrix Electronics and suitable for industrial HMI panels, medical imaging terminals, smart building gateways, and automotive infotainment prototypes requiring stable component supply across extended production lifecycles.

Supply support for STM32F479IIT6 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 analog devices for industrial, automotive, and consumer markets.

The STM32F479xx series belongs to ST's high-end F4 line, engineered specifically for resource-intensive embedded graphics applications - integrating display controllers, hardware accelerators, and rich connectivity to eliminate external glue logic in HMI designs.

FAQ

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

The STM32F479IIT6 achieves 180 MHz CPU frequency using its adaptive real-time accelerator (ART Accelerator™), which caches Flash accesses to enable zero-wait-state execution. This is validated across voltage (1.7–3.6 V) and temperature (–40°C to +105°C) ranges per DS11118 Rev 8 Section 5.3.11, with PLL configuration supporting 180 MHz output from HSE or HSI sources.

Does the MIPI DSI interface support command mode or only video mode?

The STM32F479IIT6's MIPI DSI host controller supports both video mode (burst/non-burst) and command mode, as confirmed in Section 2.12 of DS11118 Rev 8. Command mode enables low-power partial screen updates and register-level display configuration, with DCS (Display Command Set) packet generation handled in hardware via the DSIHOST peripheral.

How many independent clock domains does the F479 support for peripheral operation?

The device implements five independent clock domains: AHB1 (GPIO/DMA/ETH), AHB3 (FMC/QUADSPI), APB1 (timers/USART/I2C), APB2 (ADC/SPI/SAI), and dedicated audio/LCD/DSI PLLs. Each domain has configurable prescalers and can be gated individually, allowing precise power/performance tuning - detailed in Section 2.16 and Table 11 of DS11118 Rev 8.

Is the 4 KB backup SRAM retained during Standby mode with VBAT supplied?

Yes - when VBAT is applied and the PWR_CR register's DBP bit is set, the 4 KB backup SRAM remains powered and retains data during Standby mode, as specified in Section 2.21 and Table 30 (page 105) of DS11118 Rev 8. This SRAM is accessible only by the CPU (not DMA) and survives full power loss if VBAT > 1.8 V.