R5K574N6D4FB#10

For RX74N designs that need CAN FD in a leaded footprint, the R5K574N6D4FB#10 is the mid-tier answer: a 144-pin LFQFP running the RXv3e core at 480 MHz, with 512 KB of code MRAM, 48 KB of data MRAM and 1.5 MB of ECC SRAM, CAN FD and 10/100 Ethernet - on this family the gigabit MAC is routed on the BGA codes, not the QFP ones. The security block with Protect Zone and the -40 to +125 C junction range are unchanged from the larger codes. Selection advice: the in-catalog R5K574N6C4FC#10 runs the same 480 MHz tier in a 176-pin QFP but with classic CAN 2.0, so this D code is the one to specify when the CAN FD migration is already decided; the same-batch R5K574NCC4FB#10 is its CAN 2.0 twin in this package at 1 MB. Parameters verified against Renesas Electronics documentation.