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https://e2e.ti.com/support/logic-group/logic/f/logic-forum/818173/sn74hc21-esd-grade-of-sn74hc21dr-hbm-cdm
您好！
数据表中没有此信息。
谢谢。
您好、Jerry、
以下是您需要的数据：
HBM - 2kV
CDM - 1kV
