欢迎大家讨论:GPIO的 2-mA, 4-mA和8-mA端口驱动问题

2019-03-24 16:28发布

GPIO的 2-mA, 4-mA和8-mA端口驱动中2,4,8-mA GPIO所承受的最大电流???还是其他意思??     这方面的资料比较少,希望大家讨论下,加深对mA的了解,也为了以后编程时遇到这方面的问题。 [ 本帖最后由 fxw451 于 2010-11-12 08:24 编辑 ] 此帖出自小平头技术问答
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7条回答
fxw451
2019-03-25 11:09

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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