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TMS320F28388D: 关于上电顺序的要求

Part Number: TMS320F28388D


请问TMS320F28388D的1.2V core和3.3V IO 这两个电源有上电时序要求吗?

在手册中没有找到

不过看到MCU063B(002)_Sch中有如下设计:

电源1也就是3.3V是上电直接输出的

电源2 的使能引脚做了RC电路延迟,计算延迟时间约600uS:

如上图右侧计算的结果