STMicroelectronics STM32F429ZIY6JTR

Overview

STM32F429ZIY6JTR 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), LCD-TFT controller with 83 MHz pixel clock, and dual CAN 2.0B interfaces. It targets high-resolution embedded graphics systems such as industrial HMIs and medical display terminals.

For engineers reviewing the STM32F429ZIY6JTR datasheet, STM32F429ZIY6JTR pinout, STM32F429ZIY6JTR application, or STM32F429ZIY6JTR equivalent, key selection criteria include LCD-TFT controller bandwidth, dual USB OTG (FS/HS) support, Ethernet MAC with IEEE 1588v2 hardware timestamping, and Chrom-ART Accelerator™ DMA2D for real-time GUI rendering.

Technical Context

The device integrates an Adaptive Real-time Accelerator (ART Accelerator™) enabling zero-wait-state execution from flash at 180 MHz, alongside a dedicated LCD-TFT controller supporting resolutions up to 4096×2048 pixels and pixel clocks up to 83 MHz. Its memory architecture includes dual-bank flash for read-while-write operation and 64 KB of core-coupled memory (CCM) for time-critical code/data.

Communication subsystems feature two independent USB OTG controllers (one full-speed with on-chip PHY, one high-speed with ULPI interface and dedicated DMA), a 10/100 Ethernet MAC with MII/RMII support and IEEE 1588v2 hardware timestamping, and dual bxCAN 2.0B controllers with programmable message filtering and automatic retransmission.

Key Specifications

Pinout & Package

STM32F429ZIY6JTR uses a 144-pin LQFP package (20 × 20 mm, 0.5 mm pitch), RoHS-compliant and ECOPACK2 certified. Pin functions are validated per STMicroelectronics DS9405 Rev 13, Section 4 "Pinouts and pin description".

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F429ZIY6JTR, STM32F429VIH6 sacrifices I/O and memory interface flexibility for smaller footprint, while STM32F767ZIT6 trades integrated LCD-TFT control for raw processing power and DSI support - making the ZIY6JTR optimal for cost-sensitive, display-centric embedded systems needing guaranteed parallel RGB timing.

Availability

STM32F429ZIY6JTR is available at Aetrix Electronics and suitable for industrial HMI, medical imaging control panels, smart building gateways, and automotive diagnostic tools requiring stable component supply throughout product lifecycles.

Supply support for STM32F429ZIY6JTR 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.

This part belongs to the STM32F429xx series - a high-performance, graphics-optimized MCU line targeting embedded applications demanding integrated LCD-TFT control, rich connectivity, and deterministic real-time execution.

FAQ

What is the maximum pixel clock frequency supported by the LCD-TFT controller?

The STM32F429ZIY6JTR's integrated LCD-TFT controller supports a maximum pixel clock frequency of 83 MHz, enabling native QXGA (2048×1536) at 60 Hz or WUXGA (1920×1200) with margin. This is confirmed in Section 3.10 of DS9405 Rev 13 and verified in electrical characteristics Table 6.3.28.

Does this MCU support hardware-accelerated graphics rendering?

Yes - the Chrom-ART Accelerator™ (DMA2D) provides hardware acceleration for 2D graphics operations including memory-to-memory copy, alpha blending, and color format conversion. It operates independently of the CPU and is documented in Section 3.11 of DS9405 Rev 13.

Can both USB OTG interfaces operate simultaneously?

Yes - the STM32F429ZIY6JTR integrates two physically separate USB controllers: one full-speed (OTG_FS) with integrated PHY, and one high-speed (OTG_HS) with ULPI interface. They operate concurrently, enabling simultaneous USB device and host roles, as specified in Sections 3.33–3.34 of DS9405 Rev 13.

What is the purpose of the 64 KB CCM (core coupled memory)?

The 64 KB CCM SRAM is tightly coupled to the Cortex-M4 core and accessible only by the CPU (not DMA), ensuring zero-latency, deterministic access for critical code and data - ideal for interrupt service routines, real-time buffers, and safety-critical variables. This is detailed in Section 3.6 of DS9405 Rev 13.