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是否必须为C6748 的 DVDD18 管脚提供1.8V电压?



看到手册中说 即使选择所有的管脚都是3.3V电平 这个DVDD18 管脚也需要被提供一个1.8V的电压。想知道是否在任何情况下 都不可能省略这个1.8V的电压?谢谢