STMicroelectronics STM32U5G9J-DK1
- Part No.:
- STM32U5G9J-DK1
- Manufacturer:
- STMicroelectronics
- Category:
- Embedded MCU, DSP Evaluation Boards
- Package:
- Datasheet:
-
STM32U5G9J-DK1.pdf
- Description:
- DISCOVERY STM32U5G9NJ EVAL BRD
- Quantity:
- Payment:

- Shipping:

Inventory:2,670
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Product details
Overview
STM32U5G9J-DK1 from STMicroelectronics is a Discovery kit development platform built around the STM32U5G9NJH6Q ultra-low-power Arm® Cortex®-M33 MCU with TrustZone®, featuring 4 Mbytes flash, 3 Mbytes SRAM, integrated SMPS, and a 2.47" round RGB 480×480 TFT LCD with MIPI DSI® 2-lane interface and capacitive touch - designed for rapid prototyping of energy-efficient, graphics-rich embedded applications including smart wearables and portable HMI.
For engineers reviewing the STM32U5G9J-DK1 datasheet, STM32U5G9J-DK1 pinout, STM32U5G9J-DK1 application, or STM32U5G9J-DK1 equivalent, this board delivers verified hardware integration of Octo-SPI NOR, Hexadeca-SPI PSRAM, 4-Gbyte eMMC, ST's VL53L4CD Time-of-Flight sensor, temperature sensor, USB Type-C® sink-only interface, STLINK-V3E debugger, and audio MEMS daughterboard expansion - all accessible via dual 2.54 mm pitch expansion headers and MIPI10/Tag-Connect™ interfaces.
Technical Context
The STM32U5G9J-DK1 implements a complete evaluation system for the STM32U5G9NJH6Q MCU, which integrates Arm TrustZone for secure firmware execution, a high-efficiency SMPS for sub-1.8 V operation, and dedicated graphics acceleration features enabling optimized rendering on its round TFT display. It supports dual-bank flash execution and real-time memory protection units (MPUs) for robust firmware partitioning.
Hardware peripherals are fully exposed and preconfigured: MIPI DSI® drives the 480×480 LCD at 60 Hz with 16.7M color depth; the VL53L4CD provides gesture detection and proximity sensing within Class 1 laser safety limits per IEC 60825-1:2014; and the STLINK-V3E provides mass storage, Virtual COM port, and debug capabilities over USB re-enumeration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | Arm Cortex-M33 with TrustZone security extension and FPU - enables secure, isolated firmware execution and deterministic floating-point math for sensor fusion. |
| Memory Resources | 4 Mbytes embedded flash + 3 Mbytes SRAM - supports large RTOS-based applications with dual-bank updates and zero-wait-state execution. |
| Display Interface | MIPI DSI® 2-lane, 480×480 resolution, 16.7M colors - delivers smooth UI rendering on round TFT without external GPU offload. |
| Power System | On-board SMPS with 1.8 V fixed VDD - reduces system power by >30% vs. LDO-based designs in active and low-power modes. |
| Sensor Integration | VL53L4CD ToF + STTS22H temperature sensor - enables contactless gesture control and thermal compensation in compact wearable form factors. |
| Expansion Capability | Dual 2.54 mm pitch 2×20-pin headers + MIPI10 + Tag-Connect™ 10-pin footprint - allows direct connection to custom daughterboards for SAI, SDMMC, ADC, timers, and multiple I²C/SPI/USART peripherals. |
| Debug Interface | STLINK-V3E with USB re-enumeration (mass storage, VCP, debug) - eliminates need for external debugger and enables drag-and-drop firmware updates. |
Availability
STM32U5G9J-DK1 is available at Aetrix Electronics and suitable for smart wearable development, portable medical HMI design, and ultra-low-power industrial edge node prototyping requiring stable component supply and full ecosystem support.
Supply support for STM32U5G9J-DK1 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, delivering silicon solutions across automotive, industrial, power, and microcontroller markets with strong emphasis on energy efficiency and security.
The STM32U5 series targets ultra-low-power, secure, and graphics-capable embedded applications - combining advanced process technology, TrustZone isolation, and integrated power management to enable battery-operated devices with rich user interfaces.
FAQ
What distinguishes STM32U5G9J-DK1 from STM32U5A9J-DK?
The STM32U5G9J-DK1 includes an audio MEMS daughterboard expansion connector and targets the STM32U5G9NJH6Q MCU with 3 Mbytes of SRAM, while the STM32U5A9J-DK uses the STM32U5A9NJH6Q with 2.5 Mbytes SRAM and lacks the audio MEMS interface. Both share identical core architecture, display, and debug subsystems but differ in memory capacity and peripheral expansion focus.
Does STM32U5G9J-DK1 support USB Type-C® host functionality?
No - the board implements USB Type-C® as sink-only, compliant with USB 2.0 High-Speed specifications. It draws power and communicates via USB-C but does not provide VBUS sourcing or host controller capability. External host interaction requires connection to a PC or USB host device using a standard USB-C cable.
Can the onboard STLINK-V3E be used to program third-party STM32 boards?
Yes - the STLINK-V3E firmware supports programming and debugging of other STM32 microcontrollers via SWD interface when connected through the 20-pin STDC14 or Tag-Connect™ footprint. It operates independently of the target board's MCU and is compatible with STM32CubeProgrammer and OpenOCD toolchains.
Is the round TFT display replaceable or configurable for different resolutions?
The 2.47" round 480×480 TFT is soldered and calibrated for MIPI DSI® 2-lane operation with the STM32U5G9NJH6Q; it is not user-replaceable. Resolution and timing parameters are fixed in firmware and hardware design - no alternate resolution modes or panel swaps are supported without redesigning the display interface circuitry and driver stack.
STM32U5G9J-DK1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- STM32U5
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- MCU 32-Bit
- Core Processor:
- ARM® Cortex®-M33
- Platform:
- Discovery
- Utilized IC / Part:
- STM32U5G9NJ
- Mounting Type:
- Fixed
- Contents:
- Board(s)
STM32U5G9J-DK1 FAQ
1.How can I place an order for STM32U5G9J-DK1 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32U5G9J-DK1 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 STM32U5G9J-DK1 reliable?
The price and inventory of STM32U5G9J-DK1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32U5G9J-DK1 is usually 5 days.
3.What payment methods are accepted for STM32U5G9J-DK1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32U5G9J-DK1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32U5G9J-DK1?
STM32U5G9J-DK1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32U5G9J-DK1 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 STM32U5G9J-DK1?
For technical support, including STM32U5G9J-DK1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32U5G9J-DK1 requirements.
6.How does Aetrix verify that STM32U5G9J-DK1 is sourced from the original manufacturer or authorized distributors?
All STM32U5G9J-DK1 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 STM32U5G9J-DK1 meets industry standards.
7.What is the process for return or replacement of STM32U5G9J-DK1?
All STM32U5G9J-DK1 units undergo pre-shipment inspection (PSI). If there is an issue with STM32U5G9J-DK1, 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 STM32U5G9J-DK1 part is unused and in its original packaging.
Return procedure for STM32U5G9J-DK1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM32U5G9J-DK1 Tags

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