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DP83TC812S-Q1: 从DP83TC811S-Q1切换到DP83TC812S-Q1,有几个问题要咨询下

Part Number: DP83TC812S-Q1
Other Parts Discussed in Thread: DP83TC811S-Q1,

从DP83TC811S-Q1切换到DP83TC812S-Q1,有几个问题要咨询下

1.有没有参考设计

2.17、18GND_ESC是不是接地和悬空都可以

3.这个脚的描述和作用不是特别明白