摘要
详细介绍了RS485/RS232电平转换电路的设计方法及工作原理。通过对MAX232与MAX485的解剖和分析,采用优化的设计方案,完成了该电路的设计。电路既能直接实现RS232标准电平与RS485标准电平之间的电平转换,同时也可以实现RS485与RS232标准接口电路的功能。
The paper introduces the design method and principle of 485/232 Level Converter Circuit. By analysing MAX232 and MAX485, adopt optimized design precept to accomplish the design. This circuit can implement standard level conversion between RS232 and RS485, it can also implement the standard interface function of RS485 and RS232.
出处
《微处理机》
2008年第3期45-46,50,共3页
Microprocessors
关键词
电平转换
工艺
版图设计
Level converter
Processing
Layout design
