Ultra-High-Performance OctaBus Flash Memory to Latest STM32 Microcontrollers 512-Mbit OctaBus Memory Enables Fast Response Time, Easy Software Updates in ST’s New STM32H72x/73x, STM32L5 and STM32U5 MCU Discovery Kits, Evaluation Boards This is a product release announcement by Macronix International Co., Ltd.. The issuer is solely responsible for its content. Macronix International Co., Ltd., a leading integrated device manufacturer in the non-volatile memory (NVM) market, announced that STMicroelectronics (ST) is using Macronix OctaBus™ flash memory for several STM32 microcontroller (MCU) platforms, including the STM32H72x/73x, STM32L5 and the recently announced STM32U5. Macronix’s MX25 OctaBus family is providing the high-performance memory on select STM32 Discovery Kits and Evaluation Boards.