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ISO7220C与ISO7220M兼容问题

Other Parts Discussed in Thread: ISO7220M, ISO7220C

 因为之前用485导致丢码,把ISO7220C换成ISO7220M  但是现在ISO7220C有波形输出  ISO7220M无波形输出 想问下这两款除了在速度上有区别外 同样的电路能不能兼容使用  我是3.3V供电的