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跟MCU这边对接，除了CLK_32K Pin脚，还有哪些管脚可以不接的？
Hi
datasheet第一页就有MCU于LM5521的建议连接图，可以从图看到几乎所有连接都是必须的，但实际最主要的是I2C和INT, 其他的应该可以用外部信号来做，例如EN可以通过外部信号给如，CLK_32K可以用LP5521内部LCK.
