R5K574M6B4AE#00

The R5K574M6B4AE#00 is an RX74M microcontroller ordering code from Renesas in an LFBGA-320 package, configured with 512 KB of memory and pairing CAN FD with an EtherCAT slave controller. It is aimed at industrial nodes that have moved their in-vehicle-style and machine-internal communication up to CAN FD data rates while still belonging to an EtherCAT network, a combination common in modern factory automation, robotics and process equipment. Holding both interfaces in the main controller removes the external communication processors and bridge chips a split design would need, which shortens the bill of materials and keeps network timing under the control of a single firmware image. The 320-ball package preserves the broad peripheral and pin resources of the family's larger codes, so a design can standardize on one footprint across performance tiers. Selection advice: choose this code when CAN FD is a firm requirement and 512 KB is enough for the application and stacks; if the firmware outgrows that memory, the sibling R5K574MCA4AE#00 doubles the MRAM to 1 MB in the same package but pairs it with classic CAN 2.0 rather than CAN FD, so the interface choice, not memory alone, should drive the decision. Quote the full ordering code including the #00 suffix, since near-identical RX74M codes differ in exactly these options. Parameters verified against Renesas Electronics documentation.