【问TI】GPIO设置输出电流2、4、6mA可变的意义是什么？

2019-03-24 14:51发布

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如题，是为降低功耗而设的吗？还是有别的原因？如果是为了降低功耗，请举一个例子，解释其原理（别叫我看英语版芯片手册）。 此帖出自小平头技术问答
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19条回答
fxw451
2019-03-25 05:15
The 2 mA, 4 mA, and 8 mA options are provided so you can choose your power consumption and output speed.

The lower drive (2 mA) saves power (from your power supply) but provides lower frequency output pin toggling.

The higher drive (8 mA) consumes more power and provides higher frequency pin toggling.

The intermediate (4 mA) drive is a compromise between the other two extremes.

Depending upon your application, you choose the appropriate drive.

Hope this helps you.

Garry.



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