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STMicroelectronics STM32F429AIH6

Name: STM32F429AIH6
Brand: STMicroelectronics
SKU: STM32F429AIH6
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STM32F429AIH6

Manufacturer:: STMicroelectronics

Category:: Microcontrollers

Package:: 169-UFBGA

Datasheet:: STM32F429AIH6.pdf

Description:: IC MCU 32BIT 2MB FLASH 169UFBGA

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Product details

Overview

STM32F429AIH6 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 dual USB OTG (FS + HS) with dedicated DMA. It targets high-resolution embedded HMI systems requiring real-time graphics, industrial control panels, and connected medical displays.

For engineers reviewing the STM32F429AIH6 datasheet, STM32F429AIH6 pinout, STM32F429AIH6 application, or STM32F429AIH6 equivalent, key selection considerations include its Chrom-ART Accelerator™ (DMA2D) for zero-CPU-load graphic composition, hardware IEEE 1588v2 Ethernet MAC support, triple 12-bit ADCs (7.2 MSPS interleaved), and 168 I/Os with 90 MHz toggle rate and 5 V tolerance - critical for mixed-voltage industrial interfacing.

Technical Context

The STM32F429AIH6 integrates an Adaptive Real-time Accelerator (ART Accelerator™) enabling zero-wait-state execution from flash memory, eliminating instruction cache penalties in deterministic real-time applications. Its nested vectored interrupt controller (NVIC) supports 240 interrupts with programmable priority levels, and the multi-AHB bus matrix enables concurrent access to flash, SRAM, peripherals, and external memory via the Flexible Memory Controller (FMC).

It features dual USB controllers: OTG_FS with on-chip PHY and OTG_HS with ULPI interface and dedicated DMA, plus a 10/100 Ethernet MAC with IEEE 1588v2 hardware timestamping and MII/RMII support. The LCD-TFT controller (LTDC) operates independently of the CPU core and supports RGB, YUV, and ARGB8888 formats with programmable layer blending and alpha channel mixing.

Key Specifications

Parameter	Value and Actual Design Meaning
CPU Core	Arm® Cortex®-M4 with FPU and DSP instructions; enables floating-point math and signal processing without software emulation.
Max Clock Frequency	180 MHz; delivers 225 DMIPS (1.25 DMIPS/MHz), sufficient for real-time motor control + GUI rendering simultaneously.
Flash / RAM	2 MB dual-bank flash (read-while-write); 256 KB main SRAM + 4 KB backup SRAM + 64 KB CCM; supports code/data partitioning for latency-critical routines.
LCD Interface	Integrated LTDC with 8-layer composition, up to 4096×2048 resolution, 83 MHz pixel clock; eliminates need for external display controller in HMI designs.
Analog Peripherals	Three 12-bit ADCs (2.4 MSPS each, 7.2 MSPS interleaved), two 12-bit DACs, temperature sensor, and true RNG; supports high-speed sensor acquisition and waveform generation.
Communication Interfaces	2×CAN 2.0B, 3×I²C, 4×USART/UART, 6×SPI (45 Mbit/s), 1×SAI, 1×SDIO, USB OTG FS/HS, 10/100 Ethernet MAC; enables full-stack connectivity in edge gateways.
Graphics Acceleration	Chrom-ART Accelerator™ (DMA2D) performs 2D raster operations (copy, fill, blend) autonomously; reduces CPU load by >40% in GUI frame composition.

Pinout & Package

STM32F429AIH6 uses a 169-ball UFBGA package (7 × 7 mm, 0.5 mm pitch), optimized for high-density PCB layouts while maintaining thermal performance. Pin assignment follows ST's standardized STM32F429xx ballout with dedicated power/ground banks, separate analog/digital supply domains (VDDA/VSSA), and configurable alternate functions per pin.

Pin/Terminal	Circuit Role	Design Meaning
VDD, VDDA, VCAP1/2	Core, analog, and regulator decoupling supplies	VDD (1.7–3.6 V) powers digital logic; VDDA (1.7–3.6 V) isolates ADC/DAC reference; VCAP1/2 stabilize internal LDO output for consistent 180 MHz operation.
PA0–PA15, PB0–PB15, etc.	General-purpose I/O with AF capability	168 total I/Os; up to 164 support 90 MHz toggling; 166 are 5 V-tolerant - simplifies level-shifting in legacy industrial bus interfacing (e.g., RS-485, CAN transceivers).
PH8–PH15	LCD data/address bus (D0–D23, A0–A2)	Dedicated 24-bit parallel LCD interface supporting 8080/6800 modes; enables direct connection to TFT panels without glue logic.
PD0–PD7, PD8–PD15	FMC address/data bus (A0–A24, D0–D15)	Supports SRAM, PSRAM, NOR/NAND, SDRAM/LPSDR; allows expansion of framebuffer memory for high-res UIs or real-time data logging buffers.
PA11/PA12, PB14/PB15	USB OTG FS/HS physical layer	PA11/PA12: Full-speed PHY pins; PB14/PB15: ULPI interface for high-speed PHY - enables dual-role USB device/host operation with minimal external components.

Key Features

Feature	Design Value
ART Accelerator™	Eliminates flash wait states at 180 MHz, achieving deterministic 0-cycle instruction fetch - essential for hard real-time control loops.
Chrom-ART Accelerator™ (DMA2D)	Hardware-accelerated 2D graphics engine offloads CPU during GUI layer composition, alpha blending, and image rotation - cuts frame rendering time by 60% vs. software-only.
LCD-TFT Controller (LTDC)	Independent display controller with dual-layer overlay, programmable timing, and gamma correction; enables smooth video playback and animated UIs without CPU intervention.
Flexible Memory Controller (FMC)	32-bit external bus supporting SDRAM up to 100 MHz; allows external framebuffer allocation for 1080p UIs or large data buffers in test equipment and medical imaging.
IEEE 1588v2 Ethernet MAC	Hardware timestamping with sub-100 ns precision; enables precise time-synchronized control in industrial automation and power grid monitoring systems.

Applications

Industrial HMI Panel

Medical Imaging Display

Use Scenario: Touch-enabled operator interface for PLC-controlled machinery with real-time status visualization and alarm logging.

IC Role / Device Role / Timing Role: Primary application processor managing GUI rendering via LTDC + DMA2D, ADC-based sensor monitoring, and EtherCAT-over-Ethernet communication.

Use Value: Integrated graphics acceleration and deterministic 180 MHz execution eliminate need for external GPU or FPGA, reducing BOM cost and board area by 35%.

Use Scenario: Portable ultrasound or endoscopy display unit requiring low-latency video streaming and battery-efficient operation.

IC Role / Device Role / Timing Role: System-on-chip handling DCMI camera input (54 MB/s), real-time image enhancement, and high-fidelity LCD output with gamma correction.

Use Value: On-chip Chrom-ART and LTDC enable 60 fps 1280×1024 display with <5 ms end-to-end latency - meeting clinical responsiveness requirements.

Smart Energy Gateway

Automated Test Equipment (ATE)

Use Scenario: DIN-rail-mounted gateway aggregating Modbus, CAN, and M-Bus field data, with secure cloud upload via Ethernet and TLS acceleration.

IC Role / Device Role / Timing Role: Dual-network controller running FreeRTOS with TCP/IP stack, hardware crypto (RNG + CRC), and IEEE 1588 time synchronization for distributed metering.

Use Value: Integrated Ethernet MAC + 1588v2 hardware timestamping ensures ±50 ns time alignment across distributed sensors - critical for harmonic analysis accuracy.

Use Scenario: Rack-mounted test instrument performing high-speed analog stimulus/response measurement with synchronized multi-channel capture.

IC Role / Device Role / Timing Role: Precision timing hub coordinating 3×ADCs (7.2 MSPS interleaved), DAC waveform generation, and SPI-triggered DUT control.

Use Value: Triple ADC interleaving achieves effective 21.6 MSPS sampling with <1 ns inter-channel skew - enabling phase-accurate power electronics characterization.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STM32F767ZIT6	Higher clock (216 MHz), larger L1 cache (32 KB I/D), no LTDC; adds FPU-enhanced DSP libraries but lacks integrated TFT controller.	Better for compute-intensive algorithm execution (e.g., FFT-based spectral analysis), but requires external display controller for TFT interfaces.	Select when raw processing throughput outweighs integrated graphics needs - e.g., protocol analyzers or AI-edge inference nodes.
STM32H743VIT6	Dual-core (Cortex-M7 + M4), 480 MHz M7 core, 1 MB flash, no LTDC; includes DSI host for MIPI displays instead of parallel RGB.	Suited for asymmetric multiprocessing (e.g., M7 for control, M4 for comms), but incompatible with legacy 8080-mode TFT panels without bridge IC.	Choose for next-gen MIPI-DSI displays and ultra-low-latency control loops - not for drop-in replacement in existing parallel-LCD designs.

Compared with STM32F429AIH6, the STM32F767ZIT6 trades integrated display control for higher CPU performance and cache, while the STM32H743VIT6 shifts to MIPI ecosystem support and dual-core architecture - neither provides the same combination of parallel LCD-TFT control, Chrom-ART acceleration, and 180 MHz deterministic real-time execution in a single UFBGA169 package.

Availability

STM32F429AIH6 is available at Aetrix Electronics and suitable for industrial HMI development, medical display integration, and smart energy gateway production requiring stable component supply and long-term lifecycle assurance.

Supply support for STM32F429AIH6 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 automotive semiconductors since 1987.

The STM32F4 series targets high-performance embedded applications demanding real-time responsiveness, rich peripheral integration, and graphics capability - specifically engineered for industrial control, medical devices, and human-machine interfaces where CPU efficiency and peripheral co-processing matter most.

FAQ

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

The LTDC supports total display dimensions up to 4096 pixels wide and 2048 lines tall, with pixel clock frequencies up to 83 MHz. This enables native support for WQXGA (2560×1600) at 60 Hz or dual-HD (1920×1080) panels with hardware layer blending and gamma correction - all without external display controller logic.

Does STM32F429AIH6 support hardware encryption or secure boot?

It includes a true random number generator (RNG) and CRC calculation unit, but no dedicated cryptographic accelerators (AES, SHA, PKA) or ROM-based secure boot. Secure firmware updates require external trusted execution environment or companion security ICs - ST recommends pairing with STSAFE-A110 for certified secure boot in regulated markets.

Can the USB OTG HS interface operate without an external PHY?

No - the OTG_HS interface requires an external ULPI-compliant PHY (e.g., USB334x or TUSB1210). Only the OTG_FS interface includes an integrated full-speed PHY; OTG_HS relies on PB14/PB15 for ULPI data/control signals and mandates external PHY for high-speed (480 Mbps) operation.

How many independent ADCs does STM32F429AIH6 have, and what is their combined sampling rate?

It contains three independent 12-bit ADCs, each capable of 2.4 MSPS. In triple interleaved mode, they achieve a combined sampling rate of 7.2 MSPS with synchronized conversion start and hardware-triggered sequencing - ideal for multi-phase motor current sensing or simultaneous vibration/acoustic analysis.

STM32F429AIH6 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Package/Case:: 169-UFBGA

Series:: STM32F4

Packaging:: Tray

Product Status:: Active

Programmable:: Not Verified

Core Processor:: ARM® Cortex®-M4

Core Size:: 32-Bit Single-Core

Speed:: 180MHz

Connectivity:: CANbus, EBI/EMI, Ethernet, I2C, IrDA, LINbus, SPI, UART/USART, USB OTG

Peripherals:: Brown-out Detect/Reset, DMA, I2S, LCD, POR, PWM, WDT

Number of I/O:: 130

Program Memory Size:: 2MB (2M x 8)

Program Memory Type:: FLASH

EEPROM Size:: -

RAM Size:: 256K x 8

Voltage - Supply (Vcc/Vdd):: 1.8V ~ 3.6V

Data Converters:: A/D 24x12b; D/A 2x12b

Oscillator Type:: Internal

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:

STM32F429AIH6 FAQ

1.How can I place an order for STM32F429AIH6 through Aetrix?

Please submit a Request for Quotation (RFQ) for STM32F429AIH6 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for STM32F429AIH6 reliable?

The price and inventory of STM32F429AIH6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F429AIH6 is usually 5 days.

3.What payment methods are accepted for STM32F429AIH6?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F429AIH6 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STM32F429AIH6?

STM32F429AIH6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STM32F429AIH6 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for STM32F429AIH6?

For technical support, including STM32F429AIH6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F429AIH6 requirements.

6.How does Aetrix verify that STM32F429AIH6 is sourced from the original manufacturer or authorized distributors?

All STM32F429AIH6 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STM32F429AIH6 meets industry standards.

7.What is the process for return or replacement of STM32F429AIH6?

All STM32F429AIH6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32F429AIH6, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The STM32F429AIH6 part is unused and in its original packaging.

Return procedure for STM32F429AIH6:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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