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2296876_zh-CN
2296876_zh-CN
您好，请问 GPIO 输入可以承受多大的电流？我使用的是 GPIO_AD_B1_02，通过该引脚的电流为 8mA。
在损坏引脚之前，输入端可承受的最大电流是多少？
如果我没理解错的话，该引脚是默认值，默认配置为带 100k 下拉电阻的输入引脚。
谢谢
你好，@jtrujillo、
一般来说，任何 RT1xxx GPIO 引脚的最大电流都应限制在 25mA，无论它是输出电流还是下沉电流。这是防止可靠性问题（如电迁移造成的潜在损坏）的技术安全极限，如果引脚需要，可以持续很长时间。
BR,
Edwin.
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