1Gb OctaFlash memory for real-time XiP Execute-In-Place

1Gb OctaFlash memory for real-time XiP Execute-In-Place

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By Nick Flaherty

STMicroelectronics (ST) is using a gigabit OctaFlash memory to add real time execute-in-place (XiP) to its latest microcontroller (MCU) platforms.

The Macronix MX25UW1G45G high-performance memory is embedded into selected STM32H7R/S Discovery Kits and Evaluation Boards, enabling XiP and a graphical user interface that simulates 3D-like GUIs and animations, for industrial, smart home, and medical applications.

The STM32H7R/S devices embed one Hexa-SPI and one Octal-SPI ports supporting the OctaBus interface, which comprises Macronixs OctaFlash 8 I/O NOR and OctaRAM memories. OctaBus memory devices have been designed to meet current and emerging trends of demanding applications that require extremely high performance, reliability and  enhanced user experience.

The STM32H7R/S Discovery Kits and Evaluation Boards will be on display at the Embedded World exhibition in Nuremberg, Germany, next week.

“We rely on our years-long partnership with Macronix to ensure the flash memory we select for our MCU platforms meets our key criteria: performance, density and reliability,” said Daniel Colonna, marketing director of the General Purpose Microcontrollers Division at ST.

“Adhering to that criteria, we selected the high-density and -performance MX25UW1G45G in Macronix’s OctaFlash for our STM32H7R/S platform because that flash memory is an ideal complement to our microcontroller in demanding applications like 3D graphics.”

“Macronix enjoys a rich history of collaboration with ST in development platforms that enable designers to quickly and efficiently develop products featuring high-performance MCUs and industry-leading flash memory,” said F.L. Ni, vice president of marketing at Macronix.

The MX25UM/UW OctaFlash memories meet the growing demand for “instant-on” performance and real-time system responsiveness for external memories in automotive, industrial and consumer applications. The OctaBus memory products can perform up to an operational frequency of 250MHz with 500MB/s read throughput and the MX25LW/UW OctaBus memory family supports efficient management of over-the-air (OTA) software updates and data logging. Those features of the MX25LW/UW family are also a natural extension of the execute-in-place (XIP) memory for STM32 MCUs.

OctaBus memory offered in densities up to 2Gb can support the graphical user interfaces that leverage on the graphic accelerator embedded in STM32H7R/S. This ARM Cortex-M7-based STM32H7 MCU series combines ST’s NVM non-volatile memory with high performance, real-time capabilities, digital signal processing, low-power and low-voltage
operation, and connectivity, while maintaining full integration and ease of development.

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