Hi,I can only agree that checking exact STM32 device and associated supported QPSI or OPI or HPI is first things to do. When QSPI/OPI/HPI is supported I can only suggest to use it, rather legacy SDRAM, for pin count, power, package options and compet...
Hi,Adding few comments, if pin count is most critical we do have 128Mb QSPI DDR supported by STM32H72x/3x, improving BW at low pin count but this is WLCSP, so not most easy to assy.Regarding Octal RAM all density (64Mb ~512Mb) can be supporting in BG...
Yes, there are a documented limitation for supporting Quad SPI SDR memorry mapped write on STM32H723. OCTAL SPI Memory controller is full spec. Newer MCU have this QSPI limitation solved.Alex
STM32H7B0 won't support QSPI SDR (SOP8) memory mapped write, but fyi all following will : STM32L5, STM32L4P5/Q5, STM32U575/585, STM32H5, STM32U59x/U5Ax, STM32U5Fx/U5GxSTM32H7Rx/SxAlex
