SCR3 is a 32/64-bit RISC-V microcontroller core optimized for power-sensitive, compact embedded applications requiring high performance. Featuring a 5-stage in-order pipeline and support for RISC-V standard I, M, A Atomic, and C extensions, it includes a branch prediction unit for efficient code execution. Compatible with various real-time operating systems due to its comprehensive memory subsystem, SCR3 is ideal for industrial automation, IoT, and smart home applications, supporting multicore clusters with up to 4 cores.