R5F21336TNFPV0 is a microcontroller manufactured by Renesas. It is part of the RX63T Group microcontroller family and provides high performance, low power consumption, and a wide range of peripheral functions. It features a 32-bit RISC CPU core, 256 KB Flash memory, 1 KB of RAM, and four serial communications channels. It also has 8-channel 8-bit A/D up to 12-bit A/D converter, 10-bit PWM, 4-step general-purpose timer, and internal voltage regulator. Additionally, this part has Wake-up and Stop modes, making it ideal for battery powered applications.