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https://e2e.ti.com/support/data-converters-group/data-converters/f/data-converters-forum/1404087/dac7573-power-on-reset
工具与软件：
我使用 VDD = 5V、IOVDD = 3.3V。
哪个电源会产生上电复位？
如果我仅打开和关闭 IOVDD、I2C 块是否会复位？
提前感谢您。
尊敬的 Yumoto-San：
POR 电路基于 VDD 电源。 关闭 IOVDD 不会复位器件或 I2C 块。
此致！
Katlynne Jones
