STMicroelectronics STM32F469NIH6

Overview

STM32F469NIH6 from STMicroelectronics is a high-performance Arm® Cortex®-M4 MCU with FPU and ART Accelerator™, operating at up to 180 MHz (225 DMIPS), featuring 2 MB flash, 384+4 KB SRAM, integrated Chrom-ART Accelerator™ for GUI rendering, MIPI DSI host controller (720p@30 Hz), and dual Quad-SPI interfaces. It targets embedded graphical HMI applications requiring real-time display control, camera interface (DCMI, 54 MB/s), and industrial connectivity via Ethernet MAC and dual CAN 2.0B.

For engineers reviewing the STM32F469NIH6 datasheet, STM32F469NIH6 pinout, STM32F469NIH6 application, or STM32F469NIH6 equivalent, key selection criteria include its MIPI DSI host capability, LCD-TFT controller with XGA support, dual-bank flash for read-while-write, 161 I/Os (159 5 V-tolerant), and dedicated USB HS/FS OTG with ULPI and on-chip PHYs across full 1.7–3.6 V supply range.

Technical Context

This MCU integrates a tightly coupled memory subsystem: 64 KB CCM SRAM for time-critical code/data, dual-bank flash enabling seamless firmware updates, and flexible external memory controller supporting SDRAM, PSRAM, NOR/NAND. Its graphics pipeline combines LTDC (LCD-TFT controller) with DMA2D (Chrom-ART Accelerator™) to offload CPU-intensive bitmap blending and layer composition.

The clock architecture includes three PLLs - main PLL for CPU/system clocks, PLLI2S for audio, and PLLSAI for LCD/DSI pixel clocks - enabling independent, jitter-optimized timing domains. The MIPI D-PHY block supports DSI host operation with programmable lane count (1–4), LP/HS mode switching, and hardware-calibrated termination.

Key Specifications

Pinout & Package

STM32F469NIH6 uses the UFBGA176 (10 × 10 mm, 0.8 mm pitch) package with 169 balls (176-pin signal count including power/ground). Pin functions are validated per ST's DS11189 Rev 8, Section 3 ("Pinouts and pin description"), Table 10 ("STM32F469xx pin and ball definitions").

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F469NIH6, STM32F769NIH6 trades DSI integration for higher clock speed and cache, while STM32H743VIT6 shifts focus to M7 performance and security features at the cost of DCMI and DSI - making the F469 uniquely balanced for cost-sensitive, camera-equipped DSI display systems.

Availability

STM32F469NIH6 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, long-term lifecycle assurance, and qualified traceable sourcing.

Supply support for STM32F469NIH6 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 STM32F4 Series targets high-performance embedded applications demanding real-time responsiveness, rich peripheral integration, and graphical user interface capability - optimized for cost-effective, single-chip HMI and connectivity solutions.

FAQ

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

The STM32F469NIH6 MIPI DSI host controller supports up to 720p (1280×720) at 30 Hz with 4-lane configuration. Pixel clock derivation uses PLLSAI, and timing parameters comply with MIPI D-PHY v1.2 specifications. Frame rate is constrained by D-PHY lane speed (max 500 Mbps per lane) and internal LTDC bandwidth limits.

Does STM32F469NIH6 support hardware JPEG encoding/decoding?

No, the STM32F469NIH6 does not include dedicated JPEG codec hardware. Image compression/decompression must be implemented in software using CPU or DMA-accelerated libraries. The Chrom-ART Accelerator™ (DMA2D) supports only 2D graphics operations - blending, format conversion, and layer composition - not entropy coding.

Can the dual Quad-SPI interfaces operate simultaneously in memory-mapped mode?

Yes, both QUADSPI peripherals support independent memory-mapped mode, enabling concurrent access to two external flash devices. However, they share the AHB bus arbitration, so true parallel execution depends on access pattern and AHB matrix priority settings. Each interface supports up to 133 MHz clock and octal DDR mode for peak bandwidth.

What is the purpose of the 4 KB backup SRAM and how is it powered?

The 4 KB backup SRAM retains data during Stop/Standby modes and is powered by VBAT (1.65–3.6 V). It is enabled via PWR_CR register and survives main supply removal. Unlike the 20×32-bit backup registers, this SRAM supports byte/word access and is commonly used for logging fault data or preserving cryptographic context across deep-sleep cycles.