8-BIT USB MCUS

摘要

Microchip has released a variety of low-cost, small-form-factor USB microcon-trailers (MCUs). The latest USB PIC MCUs feature internal clock sources with 0.25% clock accuracy to enable USB connectivity with no external crystal. They are claimed to be the first USB MCUs to combine pin counts ranging from 14 to 100, with high peripheral integration and up to 128 kB of flash. The extreme low power (XLP) technology also keeps power consumption down to 35 μA/MHz in active mode and 20 nA in sleep mode.