RX651 & RX65N RX Microcontrollers Renesas Electronics RX651 and RX65N RX Microcontrollers add four 64-pin MCUs to mainstream RX651 and RX65N MCUs that use the RXv2 Core CPU. The 64-pin MCUs enable security and flash functionality for industrial applications. Each Renesas MCU's Trusted Secure IP (TSIP) and Flash area protection provides root of trust device operation. The dual-bank flash feature (BGO and swap) makes the flash firmware update easier through secure network communication. The 64-pin package reduces the PCB footprint area for IoT edge applications.