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老师好，
请问下图两种情况都可以正常工作么？
Marc
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您好,根据您提供电路方案,推荐您使用Case A, Case B 的上拉电阻过小. 关于IIC上拉电阻的选择可以参考下方链接,希望能帮助到您.
https://www.ti.com/lit/an/slva689/slva689.pdf
