The EFM8UB1, part of the Universal Bee family of MCUs, is a multi-purpose line of 8-bit microcontrollers with USB feature set in small packages. These devices offer high value by integrating an innovative energy-smart USB peripheral interface, charger detect circuit, 8 kV ESD protection, and enhanced high speed communication interfaces into small packages, making them ideal for space-constrained USB applications. With an efficient 8051 core and precision analog, the EFM8UB1 family is also optimal for embedded applications.