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电平转换芯片TXS0108ERGYR自锁现象

      问题描述: 在使用TXS0108ERGYR做1.8V转3.3V时碰到A端有数据输入,但是B端没数据输出,此时OE脚的电平被拉低到0.2V(正常1.8V)。

      电路说明:芯片的VCCA采用1.8V电源供电同时接一颗1uF的去耦电容,1.8V电源串一颗10k电阻给OE脚供电。