The Nuvoton M032 series supports up to 128 Kbytes of Flash memory, up to 16 Kbytes of SRAM, for the program code and runtime storage. A special design 512 bytes SPROM (Security Protection ROM) is to protect user’s code or library been read. It supports 4 Kbytes Flash memory of ISP (In-System Programming) to easily upgrade new firmware and the IAP (In-Application Programming) feature that can upgrade firmware while program is running. https://www.campuscomponent.com/products/nuvoton-technology-corporation-m032le3ae-de-1202-d/2208614000001867242