R5K574MCA4AE#00

The R5K574MCA4AE#00 is a top-configuration ordering code of the Renesas RX74M microcontroller family, in an LFBGA-320 package, with 1 MB of MRAM, 1.5 MB of SRAM and a 600 MHz operating frequency, plus CAN 2.0 and EtherCAT connectivity. That combination targets the demanding end of industrial control: the large MRAM holds substantial application and protocol-stack code, the generous SRAM absorbs the buffering that real-time Ethernet and multi-axis control generate, and the EtherCAT interface connects the device directly into synchronized factory networks while the classic CAN port serves legacy fieldbus segments and auxiliary nodes. For equipment builders, one controller of this class can consolidate motion, communication and supervisory tasks that would otherwise be split across several smaller MCUs, simplifying the board and the firmware architecture. Selection advice: this is the code to pick when code size genuinely needs the full 1 MB and the network plan is EtherCAT with CAN 2.0. If the design instead needs CAN FD alongside the EtherCAT slave function, the sibling R5K574M6B4AE#00 keeps the same LFBGA-320 package at a 512 KB memory size; smaller RX74M codes in a 224-ball package also exist in the catalog for less pin-hungry designs. Order by the complete code including the #00 suffix, as Renesas varies memory, package and interface options across closely related codes. Parameters verified against Renesas Electronics documentation.