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TMS320F28377S问题请教

Other Parts Discussed in Thread: TMS320F28377S

第一次使用TMS320F28377S,有两个问题请教:

1、QFP PZP封装的thermal pad上有49个过孔,一定要这么多吗?可不可以删掉一些?

2、如果不能删掉,能不能把这些过孔改成盲孔,只通到内电层,不要通孔?

谢谢了,先。