RN8211B is a low-power, high-performance 8-bit microcontroller with a 4-stage pipeline architecture and 64-pin LQFP-64_7x7x04P package compliant with RoHS regulations by RENERGY. It features an embedded 8-bit CPU core (RISC-V) with 16-bit wide data path and can support up to 128k bytes of instruction and data memory. The device offers various advanced hardware features, such as flash programming, UART, SIO, I2C, and SPI communication modules, numerous timers, an 8x8 multiplier, 12-bit PWM, 3-channel operational amplifiers, watchdog timer, 7-bit A/D converter, and power-saving sleep mode. Furthermore, the device also offers a wide range of development tools like compilers, IDE, and debugger. Thanks to its comprehensive features, RN8211B can be used in various embedded applications such as home appliance controls, automotive controllers, motor controls, etc.