Universal Bee
EFM8 USB Capable Universal Bee 8-bit Microcontrollers (MCUs)
Manufacturer: Silicon Labs


Features
- Pipelined 8-bit C8051 core with 50 MHz maximum operating frequency
- Up to 22 multifunction, 5 V tolerant I/O pins
- Low Energy USB with full- and low-speed support saves 60% of the USB energy
- USB charger detect circuit (USB-BCS 1.2 compliant)
- One 12-bit ADC and two analog comparators with internal voltage DAC as reference input
- Five 16-bit timers
- Two UARTs, SPI, SMBus/I2C master/slave and I2C slave
- Priority crossbar for flexible pin mapping