基于CP2102的USB-RS422/485接口电路的设计  

Design of USB-RS422/485 Interface Circuit Based on CP2102

作　　者：祁树胜[1] 王丁旺[2] 

机构地区：[1]西安航空技术高等专科学校电气工程系 [2]空军航空管制系,陕西西安710077

出　　处：《西安航空技术高等专科学校学报》2009年第3期10-12,16,共4页Journal of Xi'an Aerotechnical College

摘　　要：CP2102是美国Silicon laboratory公司生产的高集成度USB-UART桥接电路。它能够用最简单的外部电路、最少的外部器件及最小的电路板面积简便实现USB2.0到UART及RS-485接口的转换。在介绍CP2102的特性及工作原理基础上,以CP2102为核心设计了一种实现USB与UART及RS-485总线转换接口电路。CP2102 is a highly integrated USB-UART bridge circuit manufactured by America- based Silicon Laboratory, which can realize the conversion from USB2.0 to UART and RS-485 interface with the simplest external circuit, the least external appliances, and the smallest circuit board. While introducing CP2102 features and working principle, the paper designs a bus conversion interface circuit of USB and UART and RS - 485 with CP2102 as the core.

关 键 词：CP2102 RS-485 异步串行数据总线 通用串行总线 

分 类 号：TN702[电子电信—电路与系统]