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ST Microelectronics Launches New STM32 Microcontroller with Dedicated Graphics Accelerator

[테크월드뉴스=박규찬 기자] ST Microelectronics (ST) announced on the 20th the launch of a new STM32 microcontroller (MCU) with a dedicated graphics accelerator, which provides a more powerful user experience in small and cost-sensitive products.

[사진=ST]

The ultra-low-power STM32U5F9/G9 and STM32U5F7/G7 MCUs feature 3 MB of high-capacity dynamic memory (SRAM) to store multiple frame buffers for graphics display, reducing the use of external memory ICs.

Additionally, ST’s NeoChrome VG GPU is integrated to process graphics effects typically supported in products based on expensive high-end microprocessors.

These NeoChromeVG-equipped MCUs are the first STM32 MCUs to support hardware-accelerated vector operations, making them useful for SVG and vector font rendering. Advanced image perspective effects such as rotation, alpha blending and texture mapping are also possible through a dedicated GPU.

Additionally, it features a JPEG codec that can process MJPEG footage. These features allow product developers to use techniques such as animated logos, different font sizes, zoomable maps and video playback in smart home appliances, smart home controllers, electric bicycles and industrial terminals.

This enables the development of new, next-generation products that are more attractive, interesting and easier for consumers to understand and use.

High integration and large RAM capacity allow designers to implement high-performance graphics subsystems without using external memory ICs, saving PCB space and eliminating high-speed off-chip signaling. 4 MB of on-chip flash memory along with 3 MB of SRAM provide ample non-volatile storage for code and data.

All circuitry is integrated within an economical 100-pin Quad-Flat Package (QFP) MCU, which allows for a simple 4-layer PCB design, avoiding common issues associated with signal routing and electromagnetic compatibility (EMC).

ST demonstrated this approach with the STM32U5G9J-DK2, a graphics development kit dedicated to such MCUs, which developers can use as a hardware reference design to reduce time to market.

Reverdy, an ST Certified Partner, has developed new products with advanced graphics capabilities using the STM32U5F9/G9 MCU.

“We were able to launch a competitively priced 5-inch display module with the latest STM32 MCU, which provides premium graphics capabilities in a single, affordable chip,” said Kamil Kozłowski, co-CEO of Reverdy. We also provided an all-in-one professional visualization solution so you can implement an excellent user interface customized to our design.”

He added: “Riverdi’s new STM32U5F9/G9-based integrated display is fully supported by ST’s TouchGFX GUI design framework, so customers can immediately start developing their own user interface using the new display.”

The new MCUs are part of the STM32U5 ultra-low-power product line with the advanced and efficient Arm Cortex-M33 core, delivering up to 240 DMIPS at 160 MHz and achieving a ULPMark-CP (CoreProfile) score of 464.

200 nA standby mode, multiple sleep modes with partial RAM retention and fast wake, and efficient 16 µA/MHz operation in run mode enhance flexibility to optimize power savings and performance. Developers can leverage proven STM32 peripherals and IoT hardware security features, as well as the STM32Cube ecosystem, which includes software tools, middleware, libraries and code examples.

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