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AM335X电压范围请教,VDD_CORE电压超限

Other Parts Discussed in Thread: AM3352, TPS65910

大家好:

     1 AM335x数据手册上VDD_CORE电压范围是(1.056V—1.144V ),请教一下这个电压范围是怎么得来的?

     2、我用AM3352+TPS65910A3A1,主频1GHz,实测VDD_CORE电压普遍偏高,有时会有1.143V,非常接近范围上限了。如果加上万用表误差或PCB板本身误差,这个电压就会超限,有时会测得1.1465>1.144V,电压超限会怎样?VDD_CORE电压误差是±4%(其他电压误差±5%VDD_MPU误差±8%),VDD_CORE的精度要求这么高?