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MAX232: 关于RS232接口芯片防护的问题

Part Number: MAX232
Other Parts Discussed in Thread: TRS3227, , MAX3227

工程师你好,

目前我们需要一个可以防止RS232外部短路的232接口芯片(或电路),具体工况如下:

1.RS232-TX对GND短路时;

2.RS232-TX对VCC短路时;

3.RS232-RX对GND短路时;

4.RS232-RX对VCC短路时;

以上4种短路工况下,是否有现成的RS232收发芯片可以直接集成短路防护功能的?如果没有,请问针对以上4个短路工况,该如何处理呢?

感谢。