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https://e2e.ti.com/support/rf-microwave-group/rf-microwave/f/rf-microwave-forum/1396934/afe8000-unused-gpios-termination-recommendation
工具与软件：
您好！
如果器件计划在恶劣环境下工作、建议对未使用的 GPIO 引脚使用何种端接？ (PU / PD /悬空)
此致、
Avihay、
您好、Avihay、
任何未使用的 GPIO 引脚都可以保持悬空。
David Chaparro
