STMicroelectronics STM32F469BIT6

Overview

STM32F469BIT6 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 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 LCD-TFT controller (XGA). It targets embedded HMI systems requiring real-time graphics, camera interface (DCMI, 54 MB/s), and industrial connectivity (dual CAN, Ethernet MAC, USB OTG HS/FS).

For engineers reviewing the STM32F469BIT6 datasheet, STM32F469BIT6 pinout, STM32F469BIT6 application, or STM32F469BIT6 equivalent, key selection criteria include its dual-bank Flash read-while-write capability, hardware-accelerated 2D graphics (DMA2D), MIPI DSI timing compliance, 180 MHz real-time performance with ART Accelerator™, and support for external SDRAM/LPSDR via FMC - critical for display-intensive edge devices.

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 architecture supporting seamless firmware updates. Its clock system includes three PLLs (main, audio, SAI) and dedicated MIPI D-PHY PLL with regulator for stable DSI link operation.

The peripheral subsystem features a flexible memory controller (FMC) with 32-bit data bus for NOR/NAND/SDRAM, dual Quad-SPI interfaces, and a parallel DCMI supporting 8–14-bit YUV/RGB formats at up to 54 MB/s. The Chrom-ART Accelerator™ (DMA2D) performs 2D raster operations (copy, blend, format conversion) independently of the CPU, reducing GUI rendering load by >70% in typical XGA displays.

Key Specifications

Pinout & Package

LQFP176 package: 24 mm × 24 mm body, 0.5 mm pitch, exposed thermal pad (EP), RoHS-compliant, rated for -40°C to +105°C ambient operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F469BIT6, the STM32F769NI trades MIPI DSI for higher compute throughput and cache, while the RA6M5G sacrifices DSI for certified security and different display interface options - making the F469BIT6 uniquely balanced for cost-sensitive, DSI-based embedded displays needing real-time graphics acceleration.

Availability

STM32F469BIT6 is available at Aetrix Electronics and suitable for industrial HMI panels, medical imaging terminals, smart building gateways, and automotive diagnostic tools requiring stable component supply, long-term lifecycle support, and qualified production volumes.

Supply support for STM32F469BIT6 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 ICs, sensors, and analog products for industrial, automotive, and consumer markets.

The STM32F4-series targets high-performance embedded applications demanding real-time signal processing, rich graphical user interfaces, and multi-protocol connectivity - with the F469 variant specifically optimized for display-rich edge devices using MIPI DSI or parallel TFT.

FAQ

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

The STM32F469BIT6 MIPI DSI host controller supports up to 720p (1280×720) at 30 Hz in video mode, compliant with MIPI DSI v1.1 specifications. This requires configuration of D-PHY lane count (1–4), bit rate (up to 500 Mbps/lane), and timing parameters per the connected DSI panel's datasheet - validated in ST's AN4861 application note.

Does the FMC support DDR SDRAM or only SDR SDRAM?

The Flexible Memory Controller (FMC) supports only single-data-rate (SDR) SDRAM, not DDR SDRAM. It implements the JEDEC-standard SDR SDRAM interface with programmable CAS latency, burst length, and refresh timing - confirmed in Section 2.9 of DS11189 Rev 8 and validated on ST's STM32469I-EVAL board using Micron MT48LC4M32B2.

Can the Chrom-ART Accelerator™ perform alpha blending between two frame buffers in external SDRAM?

Yes - the DMA2D engine supports source and destination addresses in external SDRAM via FMC, enabling alpha-blending of ARGB8888 layers stored in separate SDRAM regions. This is demonstrated in ST's STM32CubeF4 firmware package (LCD_DSI_RGB565_Blending example), requiring proper FMC timing configuration and cache coherency management.

What is the minimum VDD supply voltage for guaranteed 180 MHz operation?

Guaranteed 180 MHz operation requires VDD ≥ 2.7 V, as specified in Table 17 (General operating conditions) of DS11189 Rev 8. At 1.7–2.7 V, maximum frequency is derated to 168 MHz; operation below 1.7 V violates absolute maximum ratings and risks functional failure.