STMicroelectronics STM32F479AIY6TR

Overview

STM32F479AIY6TR from STMicroelectronics is a high-performance Arm® Cortex®-M4 32-bit MCU with FPU and ART Accelerator™, operating up to 180 MHz (225 DMIPS), featuring 2 MB flash (dual-bank), 384+4 KB SRAM (including 64 KB CCM), integrated Chrom-ART graphical accelerator, MIPI DSI host controller (720p@30 Hz), and dual CAN 2.0B interfaces - deployed in industrial HMI panels with TFT-LCD + touch interface and real-time Ethernet control.

For engineers reviewing the STM32F479AIY6TR datasheet, STM32F479AIY6TR pinout, STM32F479AIY6TR application, or STM32F479AIY6TR equivalent, key selection considerations include MIPI DSI timing compliance, dual Quad-SPI memory mapping, cryptographic acceleration (AES-256/HASH), FMC interface support for SDRAM/NOR, and 161 I/Os with 159 5 V-tolerant pins for mixed-voltage system integration.

Technical Context

The device integrates an adaptive real-time memory accelerator (ART Accelerator™) enabling zero-wait-state execution from flash at 180 MHz, alongside a dual-bank flash architecture supporting concurrent read-while-write operations. Its memory subsystem includes 64 KB core-coupled memory (CCM) for time-critical code/data and flexible external memory controller (FMC) supporting SDRAM, PSRAM, NOR/NAND, and SRAM with up to 32-bit data bus width.

Graphics processing is offloaded via the Chrom-ART Accelerator™ (DMA2D), enabling hardware-accelerated 2D composition (alpha blending, color format conversion) without CPU intervention. The MIPI DSI host controller implements D-PHY v1.2 compliant physical layer with programmable lane count (1–4 lanes), LP/HS mode switching, and embedded PLL meeting 720p@30 Hz video bandwidth requirements (up to 1 Gbps per lane).

Key Specifications

Pinout & Package

STM32F479AIY6TR is housed in a 10 × 10 mm UFBGA176 package with 0.8 mm ball pitch and 161 user I/Os (159 5 V-tolerant). Ball layout follows ST's standard STM32F479 pin mapping, including dedicated MIPI DSI lanes (CLKP/CLKN, DAT0P/DAT0N through DAT3P/DAT3N), FMC signals (A0–A25, D0–D31, NE1–NE4, NOE, NWE), and dual Quad-SPI interfaces (QUADSPI1/QUADSPI2).

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32H743VIT6, STM32F479AIY6TR delivers superior display integration with on-die MIPI DSI and Chrom-ART, while RA6M5GFP trades display capability for hardened security features and lower power in always-on monitoring roles - making STM32F479AIY6TR optimal for cost-sensitive, display-centric edge devices.

Availability

STM32F479AIY6TR is available at Aetrix Electronics and suitable for industrial HMI panels, medical imaging displays, smart energy gateways, and automotive diagnostic tools requiring stable component supply across extended product lifecycles.

Supply support for STM32F479AIY6TR 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 components for industrial, automotive, and consumer markets.

The STM32F479xx series belongs to ST's high-end F4 line, engineered specifically for graphics-rich, connectivity-intensive embedded applications - combining real-time control, advanced display interfaces, and hardware security in a single die.

FAQ

What is the maximum supported resolution for the MIPI DSI interface?

The STM32F479AIY6TR MIPI DSI host controller supports up to 720p (1280×720) at 30 Hz with 4-lane configuration, meeting MIPI D-PHY v1.2 electrical specifications. Frame rate scales inversely with resolution and lane count - e.g., 480p (720×480) achievable at 60 Hz using 2 lanes. Timing parameters (tHS-PREPARE, tHS-EXIT) are fixed per datasheet Section 5.3.13 and require matching DSI panel timing budget.

Does the FMC support SDRAM with hardware refresh control?

Yes, the Flexible Memory Controller (FMC) includes dedicated SDRAM timing logic with auto-refresh and self-refresh modes. It generates RAS/CAS commands and manages refresh intervals (64 ms/8192 rows = 7.8 µs row cycle) without CPU intervention. Configuration registers (FMC_SDCR1/2, FMC_SDTR1/2) allow precise tuning of tRP, tRCD, tWR, and tRC values per JEDEC standards for 16-/32-bit SDRAM parts.

How is cryptographic acceleration accessed in firmware?

The crypto engine is memory-mapped at 0x5006_0000 and accessed via dedicated peripheral registers (CRYP_CR, CRYP_SR, CRYP_DIN, CRYP_DOUT). ST provides HAL drivers (HAL_CRYP_Encrypt, HAL_HASHEx_SHA256_Start) and middleware (X-CUBE-CRYPTOLIB) with pre-certified algorithms. AES key derivation uses the hardware TRNG (RNG_CR/RNG_DR) for entropy seeding, and all operations complete in fixed cycles - e.g., AES-256 ECB encrypts 16-byte blocks in 52 cycles.

Can the ART Accelerator™ be disabled, and what is the impact?

Yes, the ART Accelerator™ can be disabled via SYSCFG_MEMRMP register (ARTEN bit). Disabling it increases flash access latency: at 180 MHz, instruction fetch requires 2 wait states instead of 0, reducing effective Dhrystone performance by ~18% (from 225 to ~184 DMIPS). This mode is used only for debug consistency or when executing code from RAM; production firmware always enables ART for deterministic timing.