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STMicroelectronics STM32L4R9I-DISCO

Name: STM32L4R9I-DISCO
Brand: STMicroelectronics
SKU: STM32L4R9I-DISCO
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STM32L4R9I-DISCO

Manufacturer:: STMicroelectronics

Category:: Embedded MCU, DSP Evaluation Boards

Package:

Datasheet:: STM32L4R9I-DISCO.pdf

Description:: DISCOVERY STM32L4R9 EVAL BRD

Quantity:: RFQ Add To RFQ list

Payment:

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Inventory:3,029

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Product details

Overview

STM32L4R9I-DISCO from STMicroelectronics is a fully integrated, production-ready discovery kit based on the STM32L4R9AI MCU - an ultra-low-power Arm® Cortex®-M4 with FPU, 2 MB Flash, 640 KB SRAM, MIPI DSI host controller, LCD-TFT controller, and Chrom-ART Accelerator (DMA2D). It supports real-time graphics rendering for embedded HMI applications including industrial control panels and portable medical displays.

For engineers reviewing the STM32L4R9I-DISCO datasheet, STM32L4R9I-DISCO pinout, STM32L4R9I-DISCO application, or STM32L4R9I-DISCO equivalent, this board provides immediate access to dual-bank Flash execution, hardware-accelerated 2D graphics, MIPI DSI interface validation, and ultra-low-power mode characterization down to 33 nA in Shutdown.

Technical Context

The STM32L4R9I-DISCO integrates the STM32L4R9AI MCU in UFBGA169 package, featuring a 120 MHz Cortex-M4 core with ART Accelerator enabling zero-wait-state Flash execution, and dual OctoSPI interfaces supporting external XIP memory expansion. Its system-level architecture includes an interconnect matrix for concurrent peripheral access and hardware firewall for secure boot.

It implements full low-power domain control: Batch Acquisition Mode (BAM) for sensor data aggregation, Stop 2 mode with RTC at 2.8 µA, and VBAT-powered RTC + 32×32-bit backup registers. The onboard ST-LINK/V2-1 debugger supports SWD/JTAG and Embedded Trace Macrocell (ETM) for real-time code profiling.

Key Specifications

Parameter	Value and Actual Design Meaning
MCU Core	Arm Cortex-M4 with FPU, 120 MHz max frequency, 150 DMIPS, adaptive real-time accelerator (ART) for zero-wait-state Flash execution
Memory	2 MB dual-bank Flash (read-while-write), 640 KB SRAM (64 KB with hardware parity), 2× OctoSPI, FSMC for NOR/PSRAM/NAND
Graphics Interface	MIPI DSI Host (2 lanes @ 500 Mbit/s each), LCD-TFT controller (LTDC), Chrom-ART Accelerator (DMA2D), Chrom-GRC (GFXMMU)
Low-Power Performance	33 nA Shutdown mode (5 wakeup pins), 420 nA Standby with RTC, 2.8 µA Stop 2 with RTC, 43 µA/MHz Run mode (SMPS)
Analog Peripherals	12-bit ADC @ 5 Msps (16-bit oversampling), 2× 12-bit DAC, 2× op-amps with PGA, 2× ultra-low-power comparators
Connectivity	USB OTG FS (LPM/BCD), CAN 2.0B, 6× USART, 4× I²C FM+, 3× SPI, 2× SAI, SDMMC, 8–14-bit DCMI camera interface

Availability

STM32L4R9I-DISCO is available at Aetrix Electronics and suitable for industrial HMI development, portable medical device prototyping, and battery-powered smart display evaluation requiring stable component supply and long-term toolchain continuity.

Supply support for STM32L4R9I-DISCO 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 STM32L4R9 series belongs to ST's ultra-low-power MCU product line, engineered specifically for high-performance, graphics-rich embedded applications where extended battery life, real-time responsiveness, and secure firmware execution are critical design requirements.

FAQ

What is the primary MCU on the STM32L4R9I-DISCO board?

The board features the STM32L4R9AI MCU in UFBGA169 package - a 120 MHz Arm Cortex-M4 with FPU, 2 MB Flash, 640 KB SRAM, MIPI DSI host, LCD-TFT controller, and Chrom-ART Accelerator. It operates across -40 °C to +125 °C and supports SMPS-based ultra-low-power operation down to 43 µA/MHz.

Does the STM32L4R9I-DISCO support external display interfaces beyond MIPI DSI?

No - the board is optimized for MIPI DSI connectivity via its onboard DSI-to-LVDS bridge and 4.3-inch capacitive touchscreen LCD. It does not include HDMI, RGB, or parallel RGB interface hardware; all display output routing is fixed to the DSI lane configuration validated in ST's AN5027 and UM2282 reference designs.

Can the onboard ST-LINK/V2-1 debug probe program external targets?

Yes - the ST-LINK/V2-1 is detachable via solder bridges (SB15/SB16) and can be reconfigured as a standalone debug adapter. In external mode, it supports SWD/JTAG programming and debugging of other STM32 devices at up to 4 MHz clock speed, with full CMSIS-DAP compatibility and Virtual COM port functionality.

Is the STM32L4R9I-DISCO compatible with STM32CubeMX and TouchGFX?

Yes - it is fully supported in STM32CubeMX v6.2+ and TouchGFX Designer v4.18+, with preconfigured project templates, BSP drivers, and HAL libraries. TouchGFX runtime leverages the Chrom-ART Accelerator and DMA2D for GPU-accelerated UI rendering, and the board's DSI interface is validated for 800×480@60 Hz with alpha blending and anti-aliasing enabled.

STM32L4R9I-DISCO Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: STM32L4

Packaging:: Bulk

Product Status:: Active

Type:: MCU 32-Bit

Core Processor:: ARM® Cortex®-M4

Platform:: Discovery

Utilized IC / Part:: STM32L4R9

Mounting Type:: Fixed

Contents:: Board(s), OLED

STM32L4R9I-DISCO FAQ

1.How can I place an order for STM32L4R9I-DISCO through Aetrix?

Please submit a Request for Quotation (RFQ) for STM32L4R9I-DISCO 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 STM32L4R9I-DISCO reliable?

The price and inventory of STM32L4R9I-DISCO are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32L4R9I-DISCO is usually 5 days.

3.What payment methods are accepted for STM32L4R9I-DISCO?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32L4R9I-DISCO transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STM32L4R9I-DISCO?

STM32L4R9I-DISCO orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STM32L4R9I-DISCO 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 STM32L4R9I-DISCO?

For technical support, including STM32L4R9I-DISCO datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32L4R9I-DISCO requirements.

6.How does Aetrix verify that STM32L4R9I-DISCO is sourced from the original manufacturer or authorized distributors?

All STM32L4R9I-DISCO 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 STM32L4R9I-DISCO meets industry standards.

7.What is the process for return or replacement of STM32L4R9I-DISCO?

All STM32L4R9I-DISCO units undergo pre-shipment inspection (PSI). If there is an issue with STM32L4R9I-DISCO, 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 STM32L4R9I-DISCO part is unused and in its original packaging.

Return procedure for STM32L4R9I-DISCO:

1.Submit a request within 90 days.

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

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