Built-in Neochrome VG GPU… Supports hardware accelerated vector operations
STM32U5 devices add large SRAM for on-chip video storage

STMicroelectronics (ST) has introduced a microcontroller (MCU) based on an ultra-small technology that can deliver more powerful user experiences in cost-sensitive, small products.

ST announced on the 20th that it has released a new STM32 MCU with a dedicated graphics accelerator.

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

It also features ST's NeoChromVG GPU, which handles the graphics effects typically found on high-end, high-cost microprocessor-based products.

These MCUs with NeoChromeVG are the first STM32 MCUs to support hardware-accelerated vector computation, useful for SVG and vector font rendering.

Advanced perspective image effects such as rotation, alpha blending, and texture mapping are also possible via the dedicated GPU.

It also has a JPEG codec that can handle MJPEG movies.
> These features enable product developers to use techniques such as animated logos, different font sizes, zoomable maps, and video playback in smart appliances, smart home controllers, electric bicycles, and industrial terminals.

Designers can implement high-performance graphics subsystems without using external memory ICs through high-density and large-capacity RAM, while saving PCB space and eliminating high-speed off-chip signaling.

It provides ample non-volatile storage for code and data with 4MB of on-chip flash memory along with 3MB of SRAM.

All circuits are integrated into an economical 100-pin QFP (Quad-Flat Package) MCU, allowing for a simple four-layer PCB design, avoiding common problems associated with signal routing and electromagnetic compatibility (EMC).

ST has demonstrated its approach with the STM32U5G9J-DK2, a graphics development kit dedicated to these MCUs, which developers can use as a hardware reference design to accelerate time to market.

The new MCUs belong to the STM32U5 ultra-low-power product line that features the efficient, advanced Arm® Cortex®-M33 core.

It also delivers up to 240 DMIPS at 160MHz and earned a ULPMark-CP (CoreProfile) score of 464.

Optimizes power savings and performance with flexibility provided by 200nA standby mode, multiple Suspend modes with partial RAM retention and fast wake-up, and efficient 16µA/MHz run mode.

Developers can take advantage of proven STM32 peripherals and IoT hardware security features, as well as software tools, middleware, andYou can also leverage the STM32Cube ecosystem, which includes libraries and code examples.

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

“By leveraging the latest STM32 MCUs, which deliver premium graphics features in an economical single-chip, we were able to launch a competitively priced 5-inch display module,” said Kamil Kozłowski, Co-CEO of Reverdy. “Our new STM32U5F9/G9-based embedded displays are fully supported by ST’s TouchGFX GUI design framework, so customers can immediately start developing their own UIs using the new displays.”