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本人新手，求大神指教。看了下资料，DM642的内核电压1.4V要先于外围I/O电压3.3v，瑞泰提供的资料，里面的原理图设计是3.3V和1.4V之间加了5个MURS120T3二极管。请问这样就能实现供电顺序了么？求大神解惑
你好，
二极管应该是防过冲的作用。时序控制是不是用负载开关实现的，请检查后面的电路。
