As mentioned previously, the RA6M4 group integrates a high-performance Arm® Cortex®-M33 core which is based on the latest ARMv8-M architecture. The integrated 1 MB dual-bank Flash with background operation and block swap is designed for firmware updates in the field. The large 256 kB SRAM is perfect for memory hungry communication stacks. The availability of ECC RAM provides the ability to meet functional safety requirements. The integrated data Flash eliminates the need for external EEPROMs to store parameters.