Fully integrated clock generation with no external crystal required plus optional clock output selection enabling a glue-less interface to external MCU or FPGA
512 byte receive buffer and 512 byte transmit
USB Power Configurations, supports bus-powered, self-powered and bus-powered with power switching
Integrated +3.3V level converter for USB I/O
True 3.3VCMOS drive output and TTL input, Operates down to 1V8with external pull-ups, tolerant of 5V input
Configurable I/O pin output drive strength, 4mA(min) and 16mA(max)
Integrated power-on-reset circuit
Fully integrated AVCC supply filtering - no external filtering required