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手册中写的 T0 和 T2 是不是矛盾？T0要求VDD18先于或同时VDDIO上电，T2要求VDDIO先于或同时VDD18上电，这样VDD18就必须与VDDIO严格同时上电，这很难达到。
您好，
数据手册有点错误，他们之间的上电顺序先后没关系，只要保证与PDB和VD11的时序要求即可，很抱歉给您带来的困扰。
类似问题帖子请参考下面链接。
DS90UB936-Q1: timing spec between VDDIO and VDD18 at startup - Interface forum - Interface - TI E2E support forums
