Design win; ST MCU discovery kit uses Macronix QSPI memory for bandwidth

November 14, 2016 // By Graham Prophet
Non-volatile memory maker Macronix (Hsinchu, Taiwan) is supplying its 512-Mbit Quad-SPI Flash memory to STMicroelectronics for that company’s STM32F767/769 microcontroller (MCU) Discovery Kit; ST cites the high read bandwidth as the reason for selection of the memory component.

Macronix’s Quad-SPI Flash memory MX25L51245G provides high read bandwidth to enable faster access times in high-performance embedded systems. The MX25L51245G Quad SPI NOR Flash memory uses a 166-MHz single data rate (SDR) mode or 100-MHz double transfer rate (DTR) mode to deliver a read bandwidth of up to 100 MB/sec that enables fast program execution for high-performance systems. Available in industry-standard compact 8-land WSON, 16-pin SOP, and 24-ball BGA packages, the device saves board space and simplifies layout. The device provides a 0.25 msec 256-Bytes-page program time or 0.16 msec in factory-mode, increasing manufacturing throughput and enabling new data to be written quickly. Macronix MX25L51245G is manufactured on a 55 nm technology node with 10-years Macronix Product Longevity Program.


ST's STM32F767/769 microcontrollers have ARM Cortex-M7 cores for applications including portable or wearable consumer devices, smart-building and industrial controllers, smart appliances, and personal or point-of-care medical equipment. The STM32F767/769 features 512 kB of integrated RAM, as well as 16 kB Data and Instruction caches, while the Flexible Memory Controller (FMC) and Quad-SPI interface simplify off-chip memory expansion allowing practically unlimited application code size.


“Finding a memory solution that allows the STM32F7 and our complete ecosystem to show off the full range of its exceptional performance and features is key to the success of our industry-leading family of MCUs and particularly to the highest-performance F7 series,” said Renaud BOUZEREAU, MCU Marketing Manager, STMicroelectronics, who further comments that “Macronix’s Quad- SPI Flash memory solution enabled our designers to operate the STM32 MCUs to their full capability.”