ST Microelectronics (ST) announced on the 20th the launch of a new STM32 microcontroller (MCU) with a dedicated graphics accelerator.
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 NeoChromVG graphics processor (GPU) is integrated to process graphics effects typically supported in expensive high-end microprocessor-based products.
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 the 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.
Designers can implement high-performance graphics subsystems without using external memory ICs through highly integrated, large-capacity RAM, 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 into an economical 100-pin Quad-Flat Package (QFP) MCU, allowing 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 dedicated graphics development kit for these MCUs, which developers can use as a hardware reference design to reduce time to market.
The new MCUs are part of the STM32U5 ultra-low-power product line with the advanced Arm Cortex-M33 core. It delivers performance up to 240 DMIPS at 160 MHz and has a ULPMark-CP (CoreProfile) score of 464. 200 nA standby mode, multiple sleep modes with partial RAM retention and fast wake, and 16 µA efficient operation /MHz in run mode improves flexibility to optimize power saving 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.
Hello tea reporter Lee Chang-hyeon |
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