STMicroelectronics STM32F429NIH6TR

Overview

STM32F429NIH6TR from STMicroelectronics is a 32-bit Arm® Cortex®-M4 MCU with FPU, operating up to 180 MHz (225 DMIPS), featuring 2 MB flash, 256+4 KB SRAM (including 64 KB CCM), integrated 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 systems requiring real-time display control, camera interface (DCMI), and Ethernet connectivity.

For engineers reviewing the STM32F429NIH6TR datasheet, STM32F429NIH6TR pinout, STM32F429NIH6TR application, or STM32F429NIH6TR equivalent, key selection considerations include its dual USB OTG (FS/HS), 10/100 Ethernet MAC with IEEE 1588v2 support, triple 12-bit ADCs (7.2 MSPS in interleaved mode), LCD-TFT controller with parallel 8080/6800 interface, and UFBGA176 package with 166 5 V-tolerant I/Os.

Technical Context

The device 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 memory subsystem includes dual-bank flash for read-while-write operation and CCM RAM for time-critical code/data.

It features two independent CAN 2.0B controllers, dual USB OTG (one with on-chip FS PHY, one with ULPI HS interface), and a 10/100 Ethernet MAC with hardware timestamping for industrial time-sensitive networking. The DCMI supports 8–14-bit parallel camera input at up to 54 MB/s, synchronized with LTDC for direct frame buffering.

Key Specifications

Pinout & Package

STM32F429NIH6TR is housed in a 176-ball Ultra Fine Pitch Ball Grid Array (UFBGA176) package with 0.65 mm ball pitch and 10 mm × 10 mm body size. Pin assignments follow ST's standard STM32F429xx ballout for UFBGA176 (package code A0E7), including dedicated LTDC, DCMI, FMC, and USB/Ethernet signal groups.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F429ZIT6, the STM32F429NIH6TR offers superior display integration (full LTDC + DCMI) and higher I/O count in a smaller footprint; versus STM32F767ZIT6, it trades raw CPU throughput for purpose-built HMI peripherals and lower system-level design complexity.

Availability

STM32F429NIH6TR 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 across long-lifecycle deployments.

Supply support for STM32F429NIH6TR 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 STM32F4 Series targets high-performance embedded applications demanding real-time processing, rich connectivity, and advanced graphics - specifically engineered for human-machine interface, industrial automation, and medical devices with integrated display and imaging requirements.

FAQ

What is the maximum supported LCD resolution and interface type for STM32F429NIH6TR?

The STM32F429NIH6TR's integrated LTDC supports resolutions up to 4096 pixels wide by 2048 lines tall, with pixel clock up to 83 MHz. It natively drives RGB parallel interfaces (24-bit) and supports 8080/6800 MPU modes. No external display controller is needed for direct TFT panel connection, and YUV format overlay is hardware-accelerated via Chrom-ART.

Does STM32F429NIH6TR support camera input, and what are its timing limits?

Yes - it includes a dedicated Digital Camera Interface (DCMI) supporting 8–14-bit parallel input with PCLK, HSYNC, VSYNC, and embedded sync. Maximum throughput is 54 MB/s, corresponding to ~27 MHz PCLK with 14-bit data. Frame capture is DMA-managed and synchronizable with LTDC for zero-copy display pipelines, validated per DS9405 Section 6.3.27.

How does the UFBGA176 package of STM32F429NIH6TR differ electrically from LQFP variants?

The UFBGA176 (A0E7) offers identical electrical specifications to LQFP144/LQFP176 variants - same voltage ranges (1.7–3.6 V), I/O drive strength, and peripheral functionality. Key differences are mechanical: smaller footprint (10×10 mm vs. 20×20 mm), 176 balls vs. 144 pins, and enhanced thermal performance due to exposed die pad and shorter interconnects, critical for sustained 180 MHz operation in compact enclosures.

Can STM32F429NIH6TR run both USB OTG Full-Speed and High-Speed simultaneously?

No - the two USB OTG controllers share certain resources and cannot operate concurrently in host/device mode. However, the device supports independent operation: OTG_FS (PA11/PA12) can act as full-speed device/host while OTG_HS (PB12–PB13 + PH12–PH15) operates as high-speed peripheral or host via ULPI. Simultaneous use requires careful resource arbitration in software, and HS mode mandates external ULPI PHY.