Note, that while formally the peripheral may be present in smaller packages, most of the vital pins are not brought out and packages below 144 pins usually support only a very limited subset of FMC/FSMC functionality.
Also note, that ST messed up their own peripheral names, so not all FMC support SDRAM (originally, the simpler peripheral not supporting SDRAM was called FSMC).
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Thank you all for your contribution :smiling_face_with_smiling_eyes:, Khouloud