Please suggest any STM MCU which is having SPI-NOR memory controller

[Rnetr]

..

[Tesla DeLorean]

All the STM32 have an SPI controller capable of interfacing SPI FLASH devices.

L4, F7 and H7 have QuadSPI (QSPI) controllers to map the external memory in a usable fashion. Check out a couple of the DISCO and EVAL boards for working examples. The L4+, and perhaps others, support OctoSPI (OSPI) for improved bandwidth.

[Jack Peacock_2]

The QSPI interface offers some nice features over regular SPI, especially if it's a read mostly application. QSPI can map the entire NOR into the STM32 memory space. Once configured reads to a memory address automatically fetch the data from flash with look-ahead.

QSPI also has automated polling for erase/write completion, saves a lot of CPU polling time. QSPI also supports DDR mode on some ICs along with 4-bit mode, up to 8x transfer rates compared to SPI.

OctoSPI interleaves two NOR flash ICs so you can transfer 2x4-bit data on every clock edge, 16x over an SPI bus.

Jack Peacock