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请问一个芯片，上面的字符是：AD14 67KG4 HY10，附件是芯片图片。
谢谢
应该是SN74ACT14吧，六路施密特触发器反向器
谢谢，应该是了
是的，你可以在下面这个链接中，根据part mark查型号，或者根据型号查mark：
http://focus.ti.com/general/docs/partmarking/partmarkinghome.jsp?templateId=1&navigationId=10649&siteFlag=7
