The structure, characteristics and usage of AN2131QC of Cypress EZ-USB are introduced, the USB interface communication system is designed based on AN2131QC.

• 文中介绍了Cypress公司EZ -USB芯片AN2 131QC的结构、特点及使用方法 ,基于AN2 131QC芯片设计了USB接口通讯系统。