STMicroelectronics STM32F429AGH6TR

Overview

STM32F429AGH6TR from STMicroelectronics is a 32-bit Arm® Cortex®-M4 MCU with FPU, operating up to 180 MHz (225 DMIPS), featuring 1 MB flash, 256+4 KB SRAM (including 64 KB CCM), LCD-TFT controller supporting up to 4096×2048 resolution at 83 MHz pixel clock, and Chrom-ART Accelerator™ for hardware-accelerated 2D graphics. It targets high-resolution embedded HMI applications such as industrial panel displays and medical imaging interfaces.

For engineers reviewing the STM32F429AGH6TR datasheet, STM32F429AGH6TR pinout, STM32F429AGH6TR application, or STM32F429AGH6TR equivalent, key selection criteria include integrated LCD-TFT controller capability, dual CAN 2.0B support, USB OTG HS/FS with dedicated DMA, Ethernet MAC with IEEE 1588v2 hardware timestamping, and 168 I/Os with 5 V tolerance - all in a compact UFBGA169 (7 × 7 mm) package.

Technical Context

This MCU integrates an Adaptive Real-time Accelerator (ART Accelerator™) enabling zero-wait-state execution from flash memory, and a dedicated LCD-TFT controller (LTDC) with full programmability for RGB, YUV, and AHB master interfaces. Its dual-bank flash architecture supports read-while-write operations critical for over-the-air firmware updates.

The device implements a multi-AHB bus matrix with separate DMA channels for peripherals including DCMI (54 MB/s camera interface), SAI, SDIO, and two independent USB OTG controllers - one full-speed with on-chip PHY, one high-speed with ULPI support and dedicated DMA - ensuring concurrent high-bandwidth data paths without CPU intervention.

Key Specifications

Pinout & Package

STM32F429AGH6TR uses the UFBGA169 (7 × 7 mm, 0.5 mm pitch) package with 169 solder balls. Pin assignments follow ST's standard STM32F429xx ballout for this package variant, including dedicated LTDC data/control signals (LCD_Rx, LCD_Gx, LCD_Bx, LCD_HSYNC, LCD_VSYNC, LCD_CLK), DCMI interface (DCMI_Dx, DCMI_HSYNC, DCMI_VSYNC, DCMI_PCLK), and dual USB OTG PHY connections.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-performance ARM Cortex-M4 microcontroller applications.

Compared with STM32F429IGT6, the AGH6TR offers superior board-level integration density and 5 V-tolerant I/Os for mixed-voltage systems; versus STM32F767ZIT6, it retains native parallel RGB support essential for cost-sensitive TFT panels, trading raw compute for display subsystem fidelity.

Availability

STM32F429AGH6TR is available at Aetrix Electronics and suitable for industrial HMI panels, medical imaging displays, building automation gateways, and test & measurement equipment requiring stable component supply across extended production lifecycles.

Supply support for STM32F429AGH6TR 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 automotive-grade components since 1987.

The STM32F4-series targets high-performance embedded applications demanding real-time responsiveness, rich graphics, and multi-protocol connectivity - specifically engineered for human-machine interfaces, industrial control, and medical devices requiring integrated display and communication subsystems.

FAQ

What is the maximum resolution supported by the LCD-TFT controller in STM32F429AGH6TR?

The LTDC supports total display resolutions up to 4096 pixels wide and 2048 lines tall, with pixel clock frequencies up to 83 MHz. This enables native support for WXGA (1280×800), SXGA (1280×1024), and HD+ (1600×900) panels using RGB666 or RGB888 interfaces, subject to bandwidth limits of the configured pixel clock and data bus width.

Does STM32F429AGH6TR support hardware JPEG encoding/decoding?

No, the STM32F429AGH6TR does not include dedicated JPEG acceleration hardware. Image compression/decompression must be implemented in software using the Cortex-M4 FPU and DMA, or offloaded to external co-processors. The Chrom-ART Accelerator™ supports only 2D raster operations (copy, fill, blend), not codec-specific transforms.

Can the USB OTG HS interface operate without an external ULPI transceiver?

No - the USB OTG HS interface requires an external ULPI-compliant PHY (e.g., SMSC USB3343 or Microchip USB3320). The chip provides only the digital ULPI interface and dedicated DMA; it lacks an integrated HS PHY. In contrast, the USB OTG FS interface includes a fully integrated PHY and requires no external components.

How many independent CAN interfaces does STM32F429AGH6TR provide?

The STM32F429AGH6TR integrates two independent bxCAN 2.0B controllers, each with its own message RAM, filter banks, and dedicated APB1 clock domain. Both support programmable bit timing, automatic retransmission, and loopback/self-test modes - enabling dual-network isolation for safety-critical or redundant communication architectures.